OrganismsChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPhenomena and ProcessesTechnology, Industry, AgricultureHealth Care
Solid Phase ExtractionInorganic ChemicalsBurseraceaeCalibrationTandem Mass SpectrometryChromatography, High Pressure LiquidChromatography, LiquidAcanthopanaxLimit of DetectionReproducibility of ResultsSpectrophotometry, AtomicReference StandardsGas Chromatography-Mass SpectrometryMass SpectrometrySpectrometry, Mass, Electrospray IonizationSensitivity and SpecificityWater Pollutants, ChemicalIndicators and ReagentsPhenolsMolecular StructureSolid Phase MicroextractionSolid-Phase Synthesis TechniquesSpectrophotometry, UltravioletTooth Extraction
Solid Phase Extraction
An extraction method that separates analytes using a solid phase and a liquid phase. It is used for preparative sample cleanup before analysis by CHROMATOGRAPHY and other analytical methods.
Inorganic Chemicals
A broad class of substances encompassing all those that do not include carbon and its derivatives as their principal elements. However, carbides, carbonates, cyanides, cyanates, and carbon disulfide are included in this class.
Burseraceae
A plant family of the order Sapindales, subclass Rosidae, class Magnoliopsida. They are resinous trees and shrubs with alternate leaves composed of many leaflets.
Calibration
Determination, by measurement or comparison with a standard, of the correct value of each scale reading on a meter or other measuring instrument; or determination of the settings of a control device that correspond to particular values of voltage, current, frequency or other output.
Tandem Mass Spectrometry
A mass spectrometry technique using two (MS/MS) or more mass analyzers. With two in tandem, the precursor ions are mass-selected by a first mass analyzer, and focused into a collision region where they are then fragmented into product ions which are then characterized by a second mass analyzer. A variety of techniques are used to separate the compounds, ionize them, and introduce them to the first mass analyzer. For example, for in GC-MS/MS, GAS CHROMATOGRAPHY-MASS SPECTROMETRY is involved in separating relatively small compounds by GAS CHROMATOGRAPHY prior to injecting them into an ionization chamber for the mass selection.
Chromatography, High Pressure Liquid
Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed.
Chromatography, Liquid
Chromatographic techniques in which the mobile phase is a liquid.
Acanthopanax
A plant genus of the family ARALIACEAE. Ciwujia extract, which is prepared from plants of this genus, contains ciwujianosides and is used to enhance PHYSICAL ENDURANCE.
Limit of Detection
Concentration or quantity that is derived from the smallest measure that can be detected with reasonable certainty for a given analytical procedure.
Reproducibility of Results
The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.
Spectrophotometry, Atomic
Spectrophotometric techniques by which the absorption or emmision spectra of radiation from atoms are produced and analyzed.
Reference Standards
A basis of value established for the measure of quantity, weight, extent or quality, e.g. weight standards, standard solutions, methods, techniques, and procedures used in diagnosis and therapy.
Gas Chromatography-Mass Spectrometry
A microanalytical technique combining mass spectrometry and gas chromatography for the qualitative as well as quantitative determinations of compounds.
Mass Spectrometry
An analytical method used in determining the identity of a chemical based on its mass using mass analyzers/mass spectrometers.
Spectrometry, Mass, Electrospray Ionization
A mass spectrometry technique used for analysis of nonvolatile compounds such as proteins and macromolecules. The technique involves preparing electrically charged droplets from analyte molecules dissolved in solvent. The electrically charged droplets enter a vacuum chamber where the solvent is evaporated. Evaporation of solvent reduces the droplet size, thereby increasing the coulombic repulsion within the droplet. As the charged droplets get smaller, the excess charge within them causes them to disintegrate and release analyte molecules. The volatilized analyte molecules are then analyzed by mass spectrometry.
Sensitivity and Specificity
Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)
Water Pollutants, Chemical
Chemical compounds which pollute the water of rivers, streams, lakes, the sea, reservoirs, or other bodies of water.
Indicators and Reagents
Substances used for the detection, identification, analysis, etc. of chemical, biological, or pathologic processes or conditions. Indicators are substances that change in physical appearance, e.g., color, at or approaching the endpoint of a chemical titration, e.g., on the passage between acidity and alkalinity. Reagents are substances used for the detection or determination of another substance by chemical or microscopical means, especially analysis. Types of reagents are precipitants, solvents, oxidizers, reducers, fluxes, and colorimetric reagents. (From Grant & Hackh's Chemical Dictionary, 5th ed, p301, p499)
Phenols
Benzene derivatives that include one or more hydroxyl groups attached to the ring structure.
Molecular Structure
The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds.
Solid Phase Microextraction
A solventless sample preparation method, invented in 1989, that uses a fused silica fiber which is coated with a stationary phase. It is used for sample cleanup before using other analytical methods.
Solid-Phase Synthesis Techniques
Techniques used to synthesize chemicals using molecular substrates that are bound to a solid surface. Typically a series of reactions are conducted on the bound substrate that results in either the covalent attachment of specific moieties or the modification of existing function groups. These techniques offer an advantage to those involving solution reactions in that the substrate compound does not have to be isolated and purified between the reaction steps.
Spectrophotometry, Ultraviolet
Determination of the spectra of ultraviolet absorption by specific molecules in gases or liquids, for example Cl2, SO2, NO2, CS2, ozone, mercury vapor, and various unsaturated compounds. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Tooth Extraction
The surgical removal of a tooth. (Dorland, 28th ed)

Trace analysis of ethinyl estradiol in casein diet using gas chromatography with electron capture detection. (1/374)

Ethinyl estradiol (EE2) is an extremely potent synthetic estrogen and a common component in oral contraceptives. The drug has a well-characterized pharmacological profile and is used as a positive control in toxicological investigations of compounds having estrogenic activity. An analytical method developed for the determination of low microg/kg levels of EE2 in a casein-based rodent diet is presented. A methanol extract of casein diet is purified for instrumental analysis by a 3-fold solid-phase extraction process. The sample extract is derivatized with pentafluoropropionic anhydride to the pentafluoropropionyl product and analyzed by capillary gas chromatography with electron-capture detection. Recoveries of EE2 from casein diet fortified at 5, 10, and 50 microg/kg average 88.8% and have a relative standard deviation (%) of 7.2. The method limit of detection in a casein-based diet is 1 microg/kg.  (+info)

Superheated water extraction of essential oils of Origanum micranthum. (2/374)

Superheated water extraction is used to extract essential oil of leaves of Origanum micranthum. The effect of different temperatures on the essential oil profile and rate of extraction as a function of time is investigated. The components of essential oil of Origanum micranthum are removed from the aqueous extract by C18 solid-phase extraction. The identification of components is carried out using comprehensive gas chromatography-time of flight-mass spectrometry. The number of extracted components is almost the same; however, the concentrations change with changing temperature. The highest yield (0.64%) is found at a temperature of 150 degrees C, 2 mL/min and 60 bar for 30 min. The increasing temperature from 100 degrees C to 175 degrees C increased the rate of extraction of six selected components of essential oil of Origanum micranthum. cis-Sabinenehydrate exhibits the fastest rate of extraction at all temperatures studied. Some degradation products are observed at a temperature of 175 degrees C.  (+info)

Development of an impregnated reagent and automation of solid-phase analytical derivatization for carbonyls: proof of principle. (3/374)

This study undertakes reduction of scale and automation of a solid-phase analytical derivatization of carbonyls with 2,4-dinitrophenylhyrazine on a styrene-divinylbenzene resin (XAD-2). Three processes are tested. In the batch process, an aqueous phase consisting of 50 microL of sample and 150 microL of reagent solution is contacted with 6 mg XAD-2 by shaking. An impregnated reagent consisting of 2,4-dinitrophenylhydrazine hydrochloride (DNPH) deposited on XAD-2 enables two additional processes. In-vial derivatization with an impregnated reagent requires shaking 50 microL of sample with 6 mg of the impregnated reagent and reduced the reaction time from 10 to 5 min. The third process involves packing impregnated reagent a mini-column and flowing 50 microL of sample through under positive pressure supplied by a Harvard Pump. This reduces sample preparation time to 1 min. Studies are conducted with worst-case model analytes: butanone, 2-pentanone, and malonyldialdehyde. The carbonyl of the two ketones is hindered, and, thus, these two compounds react very slowly with DNPH in aqueous solution. Malonyldialdehyde is highly water soluble, and it does not react in aqueous phase but also would not sorb onto XAD-2 for reaction. Nevertheless, derivatization/extraction of all model compounds any of the three procedures result in reproducible and high yields.  (+info)

Simplified method for determining the radiochemical purity of 99mTc-MAG3. (4/374)

99mTc-Mercaptoacetyltriglycine is used for dynamic renal imaging, and the summary of product characteristics (SPC) for the European formulation specifies a shelf life of 1 or 4 h, depending on the reconstitution volume of the kit. To minimize the time required to test the radiochemical purity, a simplified quality control method was developed. METHODS: To satisfy the recommendations of the International Commission on Harmonisation, results obtained with the methods described in the European and American SPCs were compared with those obtained with the simplified method. Further validation of the new method was performed by comparison with the standard 2-strip thin-layer chromatographic method as well as tests for linearity and limits of detection and quantification. RESULTS: The simplified method provided results comparable to those provided by the registered SPC methods but was more rapid to perform and used smaller volumes of solvents. CONCLUSION: The simplified method is a reasonable alternative to the registered SPC methods.  (+info)

Improved method of plasma 8-Isoprostane measurement and association analyses with habitual drinking and smoking. (5/374)

AIM: To develop a simple and accurate method for quantifying 8-isoprostane in plasma by employing a combination of two-step solid-phase extraction of samples and a commercially available ELISA kit, and by this method to examine the effects of drinking and smoking habits against the levels of plasma 8-isoprostane in healthy Japanese volunteers. METHODS: Plasma 8-isoprostane was extracted with ODS gel suspension followed by NH(2) Sep-Pak column. The 8-isoprostane fractions were assayed using a commercially available ELISA kit. We measured plasma 8-isoprostane levels in 157 healthy Japanese volunteers divided into three groups (64 non-habitual drinkers, 56 moderate drinkers and 37 habitual drinkers) according to their alcohol consumption per week. Genotypes of aldehyde dehydrogenase 2 (ALDH2) were also determined to investigate the plasma 8-isoprostane levels with reference to drinking habits. In addition, the plasma 8-isoprostane levels of 96 non-smokers and 61 smokers from the same subjects were compared. RESULTS: Our method fulfilled all the requirements for use in routine clinical assays with respect to sensitivity, intra- and inter-assay reproducibility, accuracy and dynamic assay range. Significant increases of plasma 8-isoprostane levels were observed in female habitual drinkers when compared with those of non-habitual drinkers (t = 5.494, P<0.0001) as well as moderate drinkers (t = 3.542, P<0.005), and 8-isoprostane levels were also significantly different between ALDH2*2/1 and ALDH2*1/1 in the female habitual drinkers (t = 6.930, P<0.0001), suggesting that excessive drinking of alcohol may increase oxidization stress, especially in females. On the contrary, no significant difference of the plasma 8-isoprostane levels was observed between non-smokers and smokers. CONCLUSION: Our present method was proved to be a simple and accurate tool for measuring plasma 8-isoprostane. However, the clinical utility of plasma 8-isoprostane for drinking and smoking habits was limited since elevated 8-isoprostane levels were observed in female heavy drinkers, and no association was found between smokers and nonsmokers.  (+info)

Evidence against a direct interaction between intracellular carbonic anhydrase II and pure C-terminal domains of SLC4 bicarbonate transporters. (6/374)

Based on solid-phase binding assays with enzyme-linked immunosorbent assay detection, previous investigators suggested that intracellular carbonic anhydrase II (CA II) interacts at high affinity with the C-terminal (Ct) domains of SLC4 bicarbonate-transport proteins, expressed as glutathione S-transferase (GST) fusion proteins, to form functional HCO3- metabolons. Here we re-evaluated this protein-protein interaction using two solid-phase binding assays. We first compared the ability of the Ct domain of three SLC4 transporters, SLC4-A1 (AE1), SLC4-A4 (NBCe1), and SLC4-A8 (NDCBE), to bind immobilized CA II, using enzyme-linked immunosorbent assay detection. We found that when expressed as GST fusion proteins, all three bind to CA II (Kd 300-600 nM) better than does pure GST. However, we detected no binding of pure SLC4-Ct peptides to immobilized CA II. Second, we reversed assay orientation by immobilizing the SLC4-Ct fusion proteins or peptides. We found that more CA II binds to GST than to any of the three GST-SLC4-Ct fusion proteins. Furthermore, we detected no binding of CA II to any of the immobilized pure SLC4-Ct peptides. Finally, we used surface plasmon resonance to detect possible rapid interactions between CA II and the pure peptides. Although we detected acetazolamide binding to immobilized CA II and specific antibodies binding to immobilized SLC4-Ct peptides, we detected no binding of CA II to immobilized SLC4-Ct or vice versa. Thus, although an HCO3 metabolon may exist, CA II cannot bind directly to pure SLC4-Ct peptides and can bind to GST-SLC4-Ct fusion proteins only when the CA II is immobilized and the fusion protein is soluble, and not vice versa.  (+info)

Control of matrix effects in the analysis of urinary F2-isoprostanes using novel multidimensional solid-phase extraction and LC-MS/MS. (7/374)

F(2)-isoprostanes (F(2)-iPs), established markers of oxidative stress, exist as four sets of regioisomers. Simultaneous and specific determination of F(2)-iPs can be achieved by liquid chromatography-tandem mass spectrometry (LC-MS/MS). We developed novel methods for urine sample preparation and HPLC to control matrix-related ion suppression effects in the LC-MS/MS analysis of F(2)-iPs. A selective solid-phase extraction (SPE) wash protocol was developed with an Oasis HLB (hydrophilic-lipophilic balance) SPE cartridge using an elution profile of [(3)H]8-iso-prostaglandin (PG)F(2alpha) (iPF(2alpha)-III) when the methanol concentration was increased under acidic, neutral, and base wash conditions. A multidimensional (MD)-SPE method that incorporated size exclusion chromatography [corrected] reverse-phase chromatography, and normal-phase chromatography was developed using an Oasis HLB SPE cartridge and an HLB microElution SPE plate. Average extraction recoveries of the deuterated internal standards of iPF(2alpha)-III and iPF(2alpha)-VI were 62 +/- 8% and 60 +/- 10%. A buffer-free HPLC method for the separation of F(2)-iP isomers was developed on base-deactivated C8 columns. Average matrix effects for iPF(2alpha)-III and iPF(2alpha)-VI were 95 +/- 6% and 103 +/- 5%. The clean extraction of urine F(2)-iPs using MD-SPE and the separation of F(2)-iP isomers using a novel HPLC method did not cause apparent ion suppression in the analysis of iPF(2alpha)-III and iPF(2alpha)-VI using LC-MS/MS. These findings should be useful for establishing a routine LC-MS/MS method for the analysis of F(2)-iPs.  (+info)

Enantioanalysis of bisoprolol in human plasma with a macrocyclic antibiotic HPLC chiral column using fluorescence detection and solid phase extraction. (8/374)

A sensitive, enantioselective, high-performance liquid chromatographic (HPLC) method was developed and validated to determine S-(-)- and R-(+)-bisoprolol in human plasma. Baseline resolution was achieved using the teicoplanin macrocyclic antibiotic chiral stationary phase (CSP) known as Chirobiotic T with a polar ionic mobile phase (PIM) consisting of methanol-glacial acetic acid-triethylamine (100 : 0.02 : 0.025, v/v/v) at a flow rate of 1.5 ml/min and fluorescence detection set at 275 nm for excitation and 305 nm for emission. All analyses with S-(-)-atenolol as the internal standard were conducted at ambient temperature. The assay involved the use of a solid-phase extraction procedure for human plasma samples prior to HPLC analysis. The C18 cartridge gave good recovery rates for both enantiomers without any interference. The method was validated over the range of 20-200 ng/ml for each enantiomer concentration. Recovery rates for S-(-)- and R-(+)-bisoprolol enantiomers were in the range of 95-102%. The method proved to be precise (within-run precision expressed as % RSD ranged from 1.0-6.2% and between-run precision ranged from 0.9-6.7%) and accurate (within-run accuracies expressed as percentage error ranged from 0.2-4.8% and between-run accuracies ranged from 0.3-1.7%). The limit of quantitation and limit of detection for each enantiomer in human plasma were 20 and 5 ng/ml, respectively.  (+info)

Solid Phase Extraction Column Market Size, Share, Growth, Trends and Analysis to 2025: Research Corridor | PrismcoalitionSolid Phase Extraction Column Market Size, Share, Growth, Trends and Analysis to 2025: Research Corridor | Prismcoalition
Research Corridor has published a new research study titled Solid Phase Extraction Column Market - Growth, Share, Opportunities, Competitive Analysis and Forecast, 2017 - 2025. The Solid Phase Extraction Column market report studies current as well as future aspects of the Solid Phase Extraction Column Market based upon factors such as market dynamics, key ongoing trends and segmentation analysis. Apart from the above elements, the Solid Phase Extraction Column Market research report provides a 360-degree view of the Solid Phase Extraction Column industry with geographic segmentation, statistical forecast and the competitive landscape.. Browse the complete report at http://www.researchcorridor.com/solid-phase-extraction-column-market/. Geographically, the Solid Phase Extraction Column Market report comprises dedicated sections centering on the regional market revenue and trends. The Solid Phase Extraction Column market has been segmented on the basis of geographic regions into North America, ...
http://www.prismcoalition.org/solid-phase-extraction-column-market-size-share-growth-trends-and-analysis-to-2025-research-corridor/
Development of On-Line Solid-Phase Extraction-Liquid Chromatography Coupled with Tandem Mass Spectrometry Method to Quantify...Development of On-Line Solid-Phase Extraction-Liquid Chromatography Coupled with Tandem Mass Spectrometry Method to Quantify...
The present work describes the development of an analytical method, based on automated on-line solid phase extraction followed by ultra high-performance liquid chromatography coupled with tandem mass spectrometry (SPELC- MS/ MS) for the quantification of 37 pharmaceutical residues, covering various therapeutic classes, and some of their main metabolites, in surface and drinking water. A special attention was given to some glucuronide conjuguates and metabolites of active subtances. Multiple Reaction Monitoring (MRM) was chosen and two transitions per compound are monitored (quantification and confirmation transitions). Quantification is performed by standard addition approach to correct matrix effect. The method provides limit of quantification inferior to 20 ng.L-1 for all compounds. The methodology was successfully applied to the analysis of surface water and drinking water of 8 drinking water treatment plant in west of France. The highest drug concentrations in surface water and drinking water were
https://hal-univ-rennes1.archives-ouvertes.fr/hal-01438201
Solid Phase Extraction Column News on Environmental XPRTSolid Phase Extraction Column News on Environmental XPRT
Get the latest solid phase extraction column news on Environmental XPRT, the worlds largest environmental industry marketplace and information resource.
https://www.environmental-expert.com/news/keyword-solid-phase-extraction-column-48596
Solid phase extraction - WikipediaSolid phase extraction - Wikipedia
The stationary phase comes in the form of a packed syringe-shaped cartridge, a 96 well plate, a 47- or 90-mm flat disk, or a microextraction by packed sorbent (MEPS) device, a SPE method that uses a packed sorbent material in a liquid handling syringe.[4][5] These can be mounted on its specific type of extraction manifold. The manifold allows multiple samples to be processed by holding several SPE media in place and allowing for an equal number of samples to pass through them simultaneously. In a standard cartridge SPE manifold up to 24 cartridges can be mounted in parallel, while a typical disk SPE manifold can accommodate 6 disks. Most SPE manifolds are equipped with a vacuum port, where vacuum can be applied to speed up the extraction process by pulling the liquid sample through the stationary phase. The analytes are collected in sample tubes inside or below the manifold after they pass through the stationary phase. Solid phase extraction cartridges and disks are available with a variety of ...
https://en.wikipedia.org/wiki/Solid_phase_extraction
Online solid-phase extraction-liquid chromatography-mass spectrometry to determine free sterols in human serum - Universidad de...Online solid-phase extraction-liquid chromatography-mass spectrometry to determine free sterols in human serum - Universidad de...
n automated method for analyzing free non-cholesterol sterols in human serum using online solid phase extraction-liquid chromatography-mass spectrometry is proposed herein. The method allows the determination of three phytosterols (sitosterol, stigmasterol and campesterol) and two cholesterol precursors (desmosterol and lanosterol). The analysis of sterols in human serum is critical in the study of cholesterol-related disorders, such as inherited familial hypercholesterolemias. Special effort was made to isolate the analytes from the serum lipoproteins, their natural conveyance through the bloodstream. The sample treatment consisted of a Bligh-Dyer extraction followed by dilution of the extract. This treatment allowed the sample to be injected into the online system and ensured the correct detection of the analytes, while avoiding the matrix effects commonly related to serum samples. The analytical performance showed linear ranges that covered two orders of magnitude, with correlation coefficients
https://zaguan.unizar.es/record/60964/export/hm?ln=en
Occurrence of Antibiotics in Influent and Effluent from 3 Major Wastewater-Treatment Plants in Finland. • Arctic Health
Wastewater-treatment plants (WWTPs) are regarded as one of the main sources of antibiotics in the environment. In the present study, the concentrations of multiple antibiotics and their metabolites belonging to 5 antibiotic classes were determined in 3 major Finnish WWTPs. An online solid phase extraction-liquid chromatography-tandem mass spectrometry method was used for the extraction and analysis of the compounds. The method was fully validated using real and synthetic wastewaters. Seven antibiotics and 3 metabolites were found in the analyzed samples. Sulfonamides were removed most efficiently, whereas macrolides usually showed negative removal efficiency during the treatment, which means that the concentrations for individual antibiotics determined in the effluent samples were higher than in the influent samples. Sulfadiazine was found at concentrations up to 1018?ng/L, which was the highest concentration of any of the detected antibiotics in influent. In the effluent samples, the highest ...
https://arctichealth.org/en/permalink/ahliterature305458
Thermo Scientific™ HyperSep™ Solid Phase Extraction (SPE) Empty Well Plates 1mL Thermo Scientific™ HyperSep™ Solid Phase...Thermo Scientific™ HyperSep™ Solid Phase Extraction (SPE) Empty Well Plates 1mL Thermo Scientific™ HyperSep™ Solid Phase...
These empty well plates are used with Thermo Scientific HyperSep 96-well plate applications. Shop Thermo Scientific™ HyperSep™ Solid Phase Extraction (SPE)
https://www.fishersci.be/shop/products/hypersep-solid-phase-extraction-spe-empty-well-plates/10007734
Solid Phase Extraction (SPE) (Forensics) > Collecting Plates Laboratory Product Directory and Equipment Reviews on...Solid Phase Extraction (SPE) (Forensics) > Collecting Plates Laboratory Product Directory and Equipment Reviews on...
Read reviews and compare manufacturers of Solid Phase Extraction (SPE) (Forensics) > Collecting Plates products in the SelectScience products and suppliers directory
http://www.selectscience.net/solid-phase-extraction-
Promotions Alumina SPE Cartridge,Best Alumina SPE Cartridge,Alumina SPE Cartridge SuppliersPromotions Alumina SPE Cartridge,Best Alumina SPE Cartridge,Alumina SPE Cartridge Suppliers
Our Company Is A Professional Alumina SPE cartridge Manufacturer. We Supply Kinds Of Alumina SPE Cartridge Wholesale. If You Are Interested,You Can Contact Us!
http://www.starlabsci.com/alumina-spe-cartridge_p103.html
Field-Based Application of Developed Solid Phase Extraction with Inductively Coupled Plasma Mass Spectrometry for Vanadium...Field-Based Application of Developed Solid Phase Extraction with Inductively Coupled Plasma Mass Spectrometry for Vanadium...
High levels of vanadium have been reported in groundwater (, 0.05 - 5300 g L-1 V) from different parts of Argentina, yet no detailed study of vanadium speciation has been performed. A highly selective strong anion exchange - solid phase extraction (SAX-SPE) method was used (in-situ) for vanadium speciation analysis of groundwater samples from La Pampa - LP (General San Martin and Eduardo Castex) and Buenos Aires - BA (San German) provinces in Argentina. In this method both vanadyl (VIV) and vanadate (VV) were trapped by the complexation with disodium ethylenediaminetetraacetic acid on a pre-conditioned SAX cartridge. In the laboratory, vanadium species were separated at different eluent pH levels. VIV was eluted at pH 4 using methanol and tetrabutylammonium hydroxide. VV was eluted at pH 8 using dihydrogen ammonium phosphate. The eluted species were analysed by inductively coupled plasma mass spectrometry (ICP-MS). This method was validated using an inter-analytical method comparison with ...
http://epubs.surrey.ac.uk/813387/
Solid Phase Extraction (SPE) Overview | Sigma-AldrichSolid Phase Extraction (SPE) Overview | Sigma-Aldrich
Solid phase extraction is a form of digital (step-wise) chromatography designed to extract, partition, and/or adsorb one or more components from a liquid phase (sample) onto stationary phase (sorbent or resin).
https://www.sigmaaldrich.com/analytical-chromatography/sample-preparation/spe/learning-center/spe-overview.html
Improved miniaturised solid phase extraction - Open Access RepositoryImproved miniaturised solid phase extraction - Open Access Repository
10.1002/jssc.201200466. Chapter 3 appears to be the equivalent of a post-print article finally published as: Candish, E., Wirth, H.J., Gooley, A. A., Shellie, R. A., Hilder, E.F., 2015, Characterization of large surface area polymer monoliths and their utility for rapid, selective solid phase extraction for improved sample clean up, Journal of Chromatography A, 1410, 9-18, 10.1016/j.chroma.2015.07.065 ...
https://eprints.utas.edu.au/22779/
Optimization Of Solid Phase Extraction By Experimental Design Methodology For Seperation of Sterol And Tocopherol In Sunflower...Optimization Of Solid Phase Extraction By Experimental Design Methodology For Seperation of Sterol And Tocopherol In Sunflower...
Optimization Of Solid Phase Extraction By Experimental Design Methodology For Seperation of Sterol And Tocopherol In Sunflower Oil Deodorizer Distillate Using Zeolite As A Novel Sorbent (Sözlü Sunum ...
https://avesis.yildiz.edu.tr/yayin/2c825d8c-0d9e-4d7d-b49c-1a7a554fd33d/optimizationofsolid-phaseextractionbyexperimentaldesignmethodologyforseperation-of-sterolandtocopherolinsunfloweroildeodorizerdistillateusingzeoliteasanovelsorbent-sozlu-sunum
Global Solid Phase Extraction Market Shows Strong Growth with Leading Players are WATERS, MERCK & CO.,INC., 3M, S*Pure Pte Ltd,...Global Solid Phase Extraction Market Shows Strong Growth with Leading Players are WATERS, MERCK & CO.,INC., 3M, S*Pure Pte Ltd,...
Data Bridge Market Research has added an exhaustive research study of the Global solid phase extraction market detailing every single market driver and intricately analyzing the business vertical. The research report has abilities to raise as the most significant market worldwide as it has remained playing a remarka...
https://www.pharmiweb.com/press-release/2020-10-21/global-solid-phase-extraction-market-shows-strong-growth-with-leading-players-are-waters-merck-co
ACI Solid Phase Extraction equipment (Monitoring and Testing) | Monitoring and Testing - Environmental XPRTACI Solid Phase Extraction equipment (Monitoring and Testing) | Monitoring and Testing - Environmental XPRT
Results for ACI solid phase extraction equipment for monitoring and testing. Compare and contact a supplier near you on (monitoring and testing) - Environmental XPRT
https://www.environmental-expert.com/monitoring-testing/solid-phase-extraction/products/brand-aci
Rapid confirmatory assay for determining 12 sulfonamide antimicrobials in milk and eggs by matrix solid-phase dispersion and...
A rapid confirmatory method for determining 12 sulfonamide (SAs) antibacterials in whole milk and eggs is presented. This method is based on the matrix solid-phase dispersion technique with hot water as extractant followed by liquid chromatography (LC)-mass spectrometry (MS). The LC-MS instrument was equipped with an electrospray ion source and a single quadrupole. After 4 mL of a milk sample containing the analytes had been deposited on sand (crystobalite), this material was packed into an extraction cell. SAs were extracted by flowing 4 mL of water through the cell heated at 75 degreesC. With some modifications, this procedure was applied also to eggs. After pH adjustment and filtration, 0.5 mL of the final extracts was then injected into the LC column. MS data acquisition was performed in the positive-ion mode and by monitoring at least three ions for each target compound. The in-source collision-induced dissociation process produced confirmatory ions. At the 50 ng/g level, recovery of the ...
https://www.research.unipd.it/handle/11577/157491
Journal of Chromatography B (v.814, #1) | www.chemweb.com
A high-throughput bioanalytical method based on automated sample transfer, automated solid phase extraction, and hydrophilic interaction liquid chromatography-tandem mass spectrometry (HILIC-MS/MS) analysis, has been developed for the determination of cetirizine, a selective H1-receptor antagonist. Deuterated cetirizine (cetirizine-d8) was synthesized as described and was used as the internal standard. Samples were transferred into 96-well plates using an automated sample handling system. Automated solid phase extraction was carried out using a 96-channel programmable liquid-handling workstation. Solid phase extraction 96-well plate on polymer sorbent (Strata X) was used to extract the analyte. The extracted samples were injected onto a Betasil silica column (50 × 3, 5 μm) using a mobile phase of acetonitrile-water-acetic acid-trifluroacetic acid (93:7:1:0.025, v/v/v/v) at a flow rate of 0.5 ml/min. The chromatographic run time is 2.0 min per injection, with retention time of cetirizine and ...
https://chemweb.com/articles/15700232/08140001
SPE CartridgesSPE Cartridges
Solid Phase Extraction (SPE) cartridges provide a fast and efficient sample clean-up and concentration prior to analysis through GC, HPLC, and/or other instrument methods. SPE method concentrates and purifies analytes from solution by absorption onto a disposable solid phase cartridge, followed by elution of the analyte with a solvent appropriate for instrument analysis.
https://www.southernlabware.com/spe-cartridges.html
New Strata® Melamine SPE Cartridges Cut Sample Preparation Time in Half | SelectScienceNew Strata® Melamine SPE Cartridges Cut Sample Preparation Time in Half | SelectScience
Phenomenex Inc., a global leader in the manufacture of separation science consumables, introduces Strata Melamine, a solid phase extraction (SPE) sorbent specially designed for food testing. Strata Melamine SPE cartridges simultaneously extracts both melamine and cyanuric acid, cutting sample time in half compared to all other methods.
http://www.selectscience.net/product-news/new-strata-melamine-spe-cartridges-cut-sample-preparation-time-in-half/?artID=17886
Direct linkDirect link
This thesis describes the development of liquid chromatography tandem mass spectrometry (LC-MS/MS) methods for the trace analysis of active pharmaceutical ingredients (APIs) and their metabolites in aqueous environmental matrices. The research was focused on the development of chiral LC-MS/MS methods for the analysis of fluoxetine and metoprolol, as well as their chiral metabolites in environmental water samples. A method was also developed for the achiral compounds, diazepam and nordiazepam.. The LC-MS/MS methods were validated by the use of the isotope-labeled compounds. As these isotope-labeled compounds were not found in the wastewater samples, the validation could be assessed at trace level concentrations in the actual matrices in which the analytes were detected.. The analytes were extracted from the water samples using solid phase extraction methods. Different types of solid phase extraction sorbents were evaluated. Fluoxetine and norfluoxetine were extracted through the use of a mixed ...
http://uu.diva-portal.org/smash/record.jsf?pid=diva2%3A511363
Mobile Dual Phase Extraction EFR® Enhanced Fluid RecoveryMobile Dual Phase Extraction EFR® Enhanced Fluid Recovery
The effectiveness of EcoVac Services Enhanced Fluid Recovery (EFR®) mobile dual phase extraction multi phase extraction process has been proven on thousands of sites.
http://www.ecovacservices.com/Mobile-Dual-Phase-Extraction-EFR--Enhanced-Fluid-Recovery-6-5249.html
Kinesis TELOS® Nonpolar SPE Column, C18 120, 200 mg sorbent, 3 mL; 50/pk from Cole-ParmerKinesis TELOS® Nonpolar SPE Column, C18 120, 200 mg sorbent, 3 mL; 50/pk from Cole-Parmer
Buy Kinesis TELOS® Nonpolar SPE Column, C18 120, 200 mg sorbent, 3 mL; 50/pk and more from our comprehensive selection of Kinesis TELOS® C18 Nonpolar SPE Columns
https://www.coleparmer.com/i/kinesis-telos-nonpolar-spe-column-c18-120-200-mg-sorbent-3-ml-50-pk/0647671
Kinesis TELOS® Endcapped Nonpolar SPE Column, C18, 500 mg sorbent, 10 mL; 20/pk from Cole-ParmerKinesis TELOS® Endcapped Nonpolar SPE Column, C18, 500 mg sorbent, 10 mL; 20/pk from Cole-Parmer
Buy Kinesis TELOS® Endcapped Nonpolar SPE Column, C18, 500 mg sorbent, 10 mL; 20/pk and more from our comprehensive selection of Kinesis TELOS® C18 Nonpolar SPE Columns
https://www.coleparmer.com/i/kinesis-telos-endcapped-nonpolar-spe-column-c18-500-mg-sorbent-10-ml-20-pk/0647690
Subject: ionic strength / Journal: Journal of chromatography / Subject: solid phase extraction - PubAg Search ResultsSubject: ionic strength / Journal: Journal of chromatography / Subject: solid phase extraction - PubAg Search Results
A simple, rapid and sensitive method for determination of trace levels of domoic acid (DA) in seawater was developed, based on a magnetic solid-phase extraction (MSPE) followed by high-performance liquid chromatography with tandem mass spectrometry (HPLC-MS/MS). Five kinds of ferrite magnetic nanospheres (MFe2O4; M=Fe, Co, Ni, Cu and Zn) were prepared and first used as sorbents for MSPE of DA and ...
https://pubag.nal.usda.gov/?f%5Bjournal_name%5D%5B%5D=Journal+of+chromatography&f%5Bsubject_term%5D%5B%5D=solid+phase+extraction&q=%22ionic+strength%22&search_field=subject&sort=date-desc
A fluidic fiber platform modified for the selective extraction and on by Natasha KhanA fluidic fiber platform modified for the selective extraction and on by Natasha Khan
Solid phase extraction has become a popular tool for analytical method development as a sample preparation technique. Solid phase sorbents can generally extract analytes based on polarity or selectively based on highly specific interactions between the analyte and an immobilized surface molecule. Biomolecular recognition based solid phases utilize antibodies, nucleic acids, and proteins as a secondary affinity layer on a solid phase support for selective analyte extractions and have been used for sample preparation, purification, separations, bioassays, and molecular diagnostics. Polymer supports for solid phase extraction are desirable for their low cost, abundance, chemical inertness, and pH stability. This thesis reports the use of capillary-channel polymer (C-CP) fibers as a solid support modified for selective extraction and on fiber fluorescence detection of nucleic acids and proteins. The polymer fibers are low cost and their unique shape allows them to be easily adapted into a fluidic fiber
https://tigerprints.clemson.edu/all_theses/2001/
ASTM D7168 - 16 Standard Test Method for <sup>99</sup>Tc in Water by Solid Phase...ASTM D7168 - 16 Standard Test Method for <sup>99</sup>Tc in Water by Solid Phase...
D7168 - 16 Standard Test Method for 99Tc in Water by Solid Phase Extraction Disk , disc, disk, liquid scintillation counting, radioactivity, radiochemistry, solid phase extraction, technetium, water,,
https://www.astm.org/Standards/D7168.htm
Optimisation of the membrane-assisted passive sampler and its comparison with solid phase extraction techniqueOptimisation of the membrane-assisted passive sampler and its comparison with solid phase extraction technique
Introduction. The common approach in risk assessment of water bodies is to collect a sample of the water, which is then analysed for potential pollutants in the laboratory. This approach, among other advantages, provides manageable control over accuracy and precision of the results. However, information obtained from spot water samples is only about concentration levels at the time of sampling and may fail to account for episodic contamination. This can be addressed by collecting a series of samples over a time period to obtain a more representative picture of water quality, but the cost of analysis is then increased. An alternative and more cost-effective approach is to obtain time-weighted average (TWA) concentrations of pollutants using passive samplers. Passive samplers are now seen as an alternative to conventional spot samples. This is seen by a number of recent reviews on passive samplers (Vrana et al., 2005; Lu et al., 2002; Petty et al., 2000; Stuer-Lauridsen, 2005; Chimuka and ...
http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S1816-79502010000400015&lng=en&nrm=iso&tlng=en
Quantification of Tetramethylenedisulfotetramine (TETS) in Various Food Matrices by Solid Phase Extraction Liquid...
Tetramethylenedisulfotetramine (TETS), commonly known as tetramine, is a highly neurotoxic rodenticide (the LD50, or lethal dose for 50 of test subjects, is 0.1 mg/kg). TETS has been used in hundreds of deliberate and accidental food poisoning events in China. In this report, we describe an extraction method for the quantitation of TETS as spiked into various food matrices, including fruit juices, egg, hot dog, chicken nuggets, turkey deli meat, and ground beef. Quantitation by liquid chromatographyion trap mass spectrometry was based upon selected reaction monitoring of mass-to-charge ratio (m/z) 347 268 and consecutive reaction monitoring of m/z 347268175. An 5 mg TETS concentration was spiked into each food sample. The linear range of quantitation for TETS was 0.520 g/mL. Total recoveries (and percent relative standard deviations) for TETS in various food samples are reported.
https://apps.dtic.mil/docs/citations/AD1032301
Discovery® SPE 96-Well Plates - Solid Phase Extraction (SPE) | Sigma-AldrichDiscovery® SPE 96-Well Plates - Solid Phase Extraction (SPE) | Sigma-Aldrich
Discovery SPE products are available in 96-well plate configurations for high throughput parallel processing. Ideal for all application areas including Pharmaceutical, Clinical Analysis, Food and Beverage, Environmental, Petrochemical, Agriculture, and more.
http://www.sigmaaldrich.com/analytical-chromatography/analytical-products.html?TablePage=9645925
Strata-X PROStrata-X PRO
Strata-X-PRO is a new innovative solid phase extraction (SPE) sorbent that offers a faster, cleaner way to extract your samples, completely revolutionizing traditional SPE methods. Strata-X PRO offers improved and rugged polymeric sorbent performance combined with matrix removal technology for a revolutionary solution. With a faster SPE method, it results in at least 40% reduction in time on your SPE protocol. Less steps with no conditioning or equilibration creates a fast SPE method without losing out on the importance of SPE: cleaning up your samples. Redefine Your Solid Phase Extraction with Strata-X PRO!. ...
https://www.phenomenex.com/Products/SPDetail/Strata-X%20PRO/
Solid phase extraction and metabolic profiling of exudates from living copepods - DTU OrbitSolid phase extraction and metabolic profiling of exudates from living copepods - DTU Orbit
analyzed the content with high resolution LC-MS. Chemometric methods revealed 87 compounds that constitute a specific chemical pattern either qualitatively or quantitatively indicating copepod presence. The majority of the compounds were present in both female and male exudates, but nine compounds were mainly or exclusively present in female exudates and hence potential pheromone candidates. Copepodamide G, known to induce defensive responses in phytoplankton, was among the ten compounds of highest relative abundance in both male and female extracts. The presence of copepodamide G shows that the method can be used to capture and analyze chemical signals from living source organisms. We conclude that solid phase ...
http://orbit.dtu.dk/en/publications/solid-phase-extraction-and-metabolic-profiling-of-exudates-from-living-copepods
Lipophagy prevents activity‐dependent neurodegeneration due to dihydroceramide accumulation in vivo | EMBO ReportsLipophagy prevents activity‐dependent neurodegeneration due to dihydroceramide accumulation in vivo | EMBO Reports
Sphingolipid extraction was performed as described [50] with modifications. Briefly, 500 larvae or 350 adult flies (both male and female were equally represented in control and treatment) were snap‐frozen in liquid nitrogen and homogenized by grinding. The homogenate was added to 201 g of methanol/chloroform/water mixture (3:1:1, v/v/v), followed by sonication for 20 min in room temperature. After overnight incubation, the extract was vortexed and centrifuged at 210 g for 10 min. The organic phase was dried by nitrogen stream, and the dried pellet was re‐dissolved in 2 ml of MeOH/water/CHCl3 (96:94:6, v/v) and applied to a Strata C18‐E solid‐phase extraction cartridge (SPE) (Phenomenex Inc., Torrance, CA, US) which was pre‐conditioned with 4 ml water. Two mL of MeOH was then added into the SPE cartridge after sample loading. A 3 ml of MeOH/CHCl3 (1:1, v/v) was added into the SPE cartridge to elute the sphingolipids. The MeOH/CHCl3 eluent was dried by nitrogen stream. The dried extract ...
http://embor.embopress.org/content/early/2017/05/15/embr.201643480.print
Lipophagy prevents activity‐dependent neurodegeneration due to dihydroceramide accumulation in vivo | EMBO ReportsLipophagy prevents activity‐dependent neurodegeneration due to dihydroceramide accumulation in vivo | EMBO Reports
Sphingolipid extraction was performed as described [50] with modifications. Briefly, 500 larvae or 350 adult flies (both male and female were equally represented in control and treatment) were snap‐frozen in liquid nitrogen and homogenized by grinding. The homogenate was added to 201 g of methanol/chloroform/water mixture (3:1:1, v/v/v), followed by sonication for 20 min in room temperature. After overnight incubation, the extract was vortexed and centrifuged at 210 g for 10 min. The organic phase was dried by nitrogen stream, and the dried pellet was re‐dissolved in 2 ml of MeOH/water/CHCl3 (96:94:6, v/v) and applied to a Strata C18‐E solid‐phase extraction cartridge (SPE) (Phenomenex Inc., Torrance, CA, US) which was pre‐conditioned with 4 ml water. Two mL of MeOH was then added into the SPE cartridge after sample loading. A 3 ml of MeOH/CHCl3 (1:1, v/v) was added into the SPE cartridge to elute the sphingolipids. The MeOH/CHCl3 eluent was dried by nitrogen stream. The dried extract ...
http://embor.embopress.org/content/early/2017/05/15/embr.201643480.full
Patent US5438129 - DNA purification by solid phase extraction using partially fluorinated ... - Google PatentsPatent US5438129 - DNA purification by solid phase extraction using partially fluorinated ... - Google Patents
The present invention relates to fluorinated surfaces which exhibit sufficient hydrophilicity and sufficient electropositivity to bind DNA from a suspension containing DNA and permit elution of the DNA from the surface. Generally, the hydrophilic and electropositive characteristics are expressed at the fluorinated surface. Preferred fluorinated surfaces of the present invention include fluorinated Al(OH)3, fluorinated SiO2 and fluorinated Celite. The fluorinated surfaces of the present invention are particularly useful in processes for purification of DNA from other cellular components. In these processes, a suspension of cellular components is placed in contact with the fluorinated surface, the fluorinated surface is washed to remove all cellular components other than DNA which are bound to the surface, and the bound DNA is eluted from the surface. Lower concentrations of chaotrope in the binding buffer are needed to bind DNA to the fluorinated surfaces.
http://www.google.com/patents/US5438129?dq=6011510
Collecting peptide release from the brain using porous polymer monolith-based solid phase extraction capillaries
PubMed Central Canada (PMC Canada) provides free access to a stable and permanent online digital archive of full-text, peer-reviewed health and life sciences research publications. It builds on PubMed Central (PMC), the U.S. National Institutes of Health (NIH) free digital archive of biomedical and life sciences journal literature and is a member of the broader PMC International (PMCI) network of e-repositories.
http://pubmedcentralcanada.ca/pmcc/articles/PMC2810310/
Supra-Clean SPE Columns REC18 (full accessible surface) 1g/6ml, Pack of 30 | PerkinElmer
A variety of proven techniques, such as filtration, dialysis, liquid/liquid extraction and Solid Phase Extraction (SPE), are routinely adopted in todaylj analytical laboratories to resolve the vast array of sample preparation demands. SPE has established itself as one of the most popular and flexible tools within the analytical laboratory; providing effective, efficient sample concentration and purification prior to HPLC, LC/MS, GC or GC/MS and adaptation to automated techniques such as combinatory chemistry. The resultant SPE product range provides unparalleled performances and satisfies the clients demand for Recovery, Reliability and Reproducibility ...
https://www-punchout.perkinelmer.com/product/col-supra-clean-spe-rec18-1g-6ml-30-n9306491
SiliaPrepX - Polymeric SPE Cartridges & Well PlatesSiliaPrepX - Polymeric SPE Cartridges & Well Plates
Solid-phase extraction (SPE) is a technique designed for rapid sample preparation and purification prior to chromatographic analysis. You can optimize your SPE protocols by using SiliCycle SiliaPrepX Polymeric SPE Cartridges and Well Plates.
https://www.silicycle.com/products/silicycle-sample-preparation-products/siliaprepx-spe-cartridges-well-plates
Molecularly Imprinted Nanomicrospheres as Matrix Solid-Phase Dispersant Combined with Gas Chromatography for Determination of...Molecularly Imprinted Nanomicrospheres as Matrix Solid-Phase Dispersant Combined with Gas Chromatography for Determination of...
An efficient, rapid, and selective method for sample pretreatment, namely, molecularly imprinted matrix solid-phase dispersion (MI-MSPD) coupled with gas chromatography (GC), was developed for the rapid isolation of four phosphorothioate organophosphorus pesticides (tolclofos-methyl, phoxim, chlorpyrifos, and parathion-methyl) from carrot and yacon samples. New molecularly imprinted polymer nanomicrospheres were synthesized by using typical structural analogue tolclofos-methyl as a dummy template via surface grafting polymerization on nanosilica. Then, these four pesticides in carrot and yacon were extracted and adsorbed using the imprinted nanomicrospheres and further determined by gas chromatography. Under the optimized conditions, a good linearity of four pesticides was obtained in a range of 0.05–17.0 ng·g|sup|−1|/sup| with |i|R|/i| varying from 0.9971 to 0.9996, and the detection limit of the method was 0.012~0.026 ng·g|sup|−1|/sup| in carrot and
https://www.hindawi.com/journals/jamc/2015/385167/
PDF] Liquid Phase Extraction Download ~ Read Online FreePDF] Liquid Phase Extraction Download ~ Read Online Free
Please Sign Up to Read online or Download Liquid Phase Extraction eBooks in PDF, EPUB, Tuebl and Kindle. Start your FREE month now! Click button to sign up and
https://www.booklibrarian.com/pdfepub/liquid-phase-extraction/
Phase extraction based on iteration algorithm with crossed fringes in phase measuring deflectometry | (2017) | Jin | ...Phase extraction based on iteration algorithm with crossed fringes in phase measuring deflectometry | (2017) | Jin | ...
In phase measuring deflectometry, two orthogonal sinusoidal fringe patterns are separately projected on the test surface and the distorted fringes reflected by the surface are recorded, each with a sequential phase shift. Then the two components of the local surface gradients are obtained by triangulation. It usually involves some complicated and time-consuming procedures (fringe projection in the orthogonal directions, accurate phase shifting).To avoid the complex process, a novel phase extraction algorithm with crossed fringes is presented in this paper. It is based on a least-squares iterative process. Both a numerical simulation and a preliminary experiment are conducted to verify the validity and performance of this algorithm. Experimental results obtained by our method are shown, and comparisons between our experimental results and those obtained by the traditional phase-shifting algorithm and between our experimental results and those measured by the Fizeau interferometer are made ...
https://spie.org/Publications/Proceedings/Paper/10.1117/12.2285165
OSA | Two-dimensional regression for interferometric phase extractionOSA | Two-dimensional regression for interferometric phase extraction
An approach based on two-dimensional iterative nonlinear regression for retrieving phase information from single-frame interferograms was formulated and tested for fluid- and heat-flow measurements. Even though an initial crude phase assignment-i.e., fringe-order numbers at limited data points-is needed, the approach does not require complete phase unwrapping as in conventional techniques. Testing of computer-simulated and real interferometric data shows stable convergence and accurate phase extraction. The method works well under a high noise level, including broken fringes or contaminated regions, with a good noise-cleansing capacity. It provides accuracy at image- or opaque-object boundaries and directly offers spatial-gradient values. A weakness, however, can be intensive computation in the iterative estimation. The method is a good candidate for single-frame interferogram reduction.. © 1998 Optical Society of America. Full Article , PDF Article ...
https://www.osapublishing.org/ao/abstract.cfm?uri=ao-37-8-1370
CarboPrep Reversing SPE Cartridges / Sample Handling / Chromatography Products at Restek.comCarboPrep Reversing SPE Cartridges / Sample Handling / Chromatography Products at Restek.com
CarboPrep Reversing SPE Cartridges cat.# 26206 High adsorbent capacity (surface area ~200 m2/g) for large volume sampling.Chromatographic grade graphitized carbon...
https://www.restek.com/catalog/view/7848/26206
GERSTEL, Inc. USAGERSTEL, Inc. USA
Having to reach ever lower limits of detection is a daily challange in modern laboratories. In order to succeed in obtaining sufficiently sensitive analysis methods, sample preparation techniques such as Solid Phase Extraction (SPE) or Liquid-Liquid Extraction are often used as concentration steps. The concentration factor achieved in these cases depends on the amount of solvent used for analyte elution from the SPE cartridge or for liquid extraction. Following the extraction step, further concentration of analytes can be achieved by reducing the amount of solvent left in the extract. This is typically achieved by evaporation. Such a concentration step can contribute significantly to improved limits of detection for the overall analytical method. For the evaporative concentration step, commercially available rotary evaporators as well as custom solutions are widely used. These are mainly stand-alone systems for manual operation. The GERSTEL MultiPosition Evaporation Station (mVAP) in combination ...
http://www.gerstelus.com/application-categories/applications-by-market/environmental-watersoilair/
A simplified SPE procedure combined with HPLC-ESI/MS for phospholipid determination - Technische Universität GrazA simplified SPE procedure combined with HPLC-ESI/MS for phospholipid determination - Technische Universität Graz
TY - CONF. T1 - A simplified SPE procedure combined with HPLC-ESI/MS for phospholipid determination. AU - Fauland, Alexander. AU - Trötzmüller, Martin. AU - Guo, Xinghua. AU - Köfeler, Harald. AU - Lankmayr, Ernst. PY - 2012/3/6. Y1 - 2012/3/6. M3 - (Old data) Lecture or Presentation. ER - ...
https://graz.pure.elsevier.com/de/publications/a-simplified-spe-procedure-combined-with-hplc-esims-for-phospholi-2/
Thermo Scientific™ HyperSep™ UniGuard Direct-Connect Online SPE Columns HyperSep Retain-AX; 10mm length; 2.1mm inner diameter...Thermo Scientific™ HyperSep™ UniGuard Direct-Connect Online SPE Columns HyperSep Retain-AX; 10mm length; 2.1mm inner diameter...
Direct-connection SPE cartridges offer quick, easy connection by means of a reusable drop-in guard cartridge holder. Shop Thermo Scientific™ HyperSep™ UniGuard
https://www.fishersci.dk/shop/products/hypersep-uniguard-direct-connect-online-spe-columns-3/10005984
Detection of Chloropropanol Content in Soy Sauce by SLE and GCMS Method-AgelaDetection of Chloropropanol Content in Soy Sauce by SLE and GCMS Method-Agela
Introduction. Chloropropanol is a kind of toxic carcinogenesis generated in chemical production of soy sauce. It also has inhibitory effect on the production of male hormones which decrease the reproductive ability. It is greatly harmful to human body. Daily common three kinds are as following: 1-chloro-2-propanol (ClCH2CHOHCH3); 3-chloro-1,2-propanediol (3-MCPD) and 1,3- dichloro-2- propanol (1,3-DCP).. Experimental. Sample preparation. Accurately weigh 0.1 g chloropropanols standard substance in to100 mL volumetric flask, constant volume to scale by ethyl acetate and get 1 mg/mL stock solution. Gradually dilute the stock solution with acetone to get 1 μg/mL standard working solution. Weigh 290 g sodium chloride, add water to dissolve and dilute to 1000 mL, and then ultrasonic for 20 min. Weighs 2.5 g soy sauce directly loads to the Cleanert MCPD solid phase extraction column, static balance for 10min, wash the column with 15 mL ethyl acetate and collect the eluent. Nitrogen blow the eluent to ...
http://bonnaagela.com/application/detail/246
Online solid phase extraction with liquid chromatography-tandem mass spectrometry for determination of estrogens and...
TY - JOUR. T1 - Online solid phase extraction with liquid chromatography-tandem mass spectrometry for determination of estrogens and glucocorticoids in water. AU - Goh, Shalene Xue Lin. AU - Duarah, Ankur. AU - Zhang, Lifeng. AU - Snyder, Shane A.. AU - Lee, Hian Kee. N1 - Funding Information: This work was supported by the Singapore National Research Foundation under its Environmental & Water Technologies Strategic Research Programme administered by the Environmental & Water Industry Programme Office (EWI) of the Public Utilities Board, Singapore (Grant no. 706-000-016-490/706-000-016-133 ). S.X.L. Goh is grateful for the award of a graduate research scholarship from the EWI. Publisher Copyright: © 2016 Elsevier B.V.. PY - 2016/9/23. Y1 - 2016/9/23. N2 - The present work describes the development of a novel fully automated online solid phase extraction (SPE) coupled with high performance liquid chromatography-tandem mass spectrometry (LC-MS/MS) using negative electrospray ionisation (ESI) for ...
https://arizona.pure.elsevier.com/en/publications/online-solid-phase-extraction-with-liquid-chromatographytandem-ma
GERSTEL, Inc. USAGERSTEL, Inc. USA
Solid phase extraction (SPE) is one of the sample preparation methods most widely used by chromatographers, as demonstrated by the numerous published SPE methods found in the literature. Manual SPE cartridge formats can vary from disks through individual cartridges with a range of different volumes to 96-well plates. However, solid phase extraction methods can be tedious and time consuming when performed manually. There is therefore an increasing need for the automation of solid phase extraction methods. A robotic X-Y-Z coordinate autosampler commonly used for sample introduction in GC or HPLC can be used to perform a wide variety of sample preparation techniques using a single instrument and controlling software. The MAESTRO software allows the user to control the automation of solid phase extraction methods. In addition to ease of use and intuitive windows-based programming, the tools to optimize method parameters ensuring efficient sequence creation and maximum sample throughput. The sampler ...
http://www.gerstelus.com/application-categories/applications-by-market/pharmaceutical-biotechnology/
IJERPH | Free Full-Text | Application of Solid Phase Extraction on Multiwalled Carbon Nanotubes of Some Heavy Metal Ions to...IJERPH | Free Full-Text | Application of Solid Phase Extraction on Multiwalled Carbon Nanotubes of Some Heavy Metal Ions to...
A novel and highly sensitive method for the determination of some heavy metals in skin whitening cosmetics creams using multiwalled carbon nanotubes MWCNTs as solid phase extraction sorbent for the preconcentration of these heavy metals prior to their determination by inductively coupled plasma atomic emission spectrometry is described. Different practical parameters have been thoroughly investigated and the optimum experimental conditions were employed. The developed method was then applied for the determination of arsenic, bismuth, cadmium, mercury, lead and titanium in samples of skin whitening cosmetics. The detection limits under these conditions for As, Bi, Cd, Pb, Hg and Ti were 2.4, 4.08, 0.3, 2.1, 1.8, and 1.8 ng·mL−1, respectively. The relative standard deviations (RSDs) were found to be less than 2.0%. For validation, a certified reference material of NIST SRM 1570a spinach leaves was analyzed and the determined values were in good agreement with the certified values. The recoveries for
http://mdpi.com/1660-4601/10/1/361/xml
Determination of some frequently used antibiotics in waste waters using solid phase extraction followed by high performance...Determination of some frequently used antibiotics in waste waters using solid phase extraction followed by high performance...
|p|This study is focused on the determination of some important antibiotics from different classes in waste water samples using solid phase extraction followed by high performance liquid chromatography with two detectors, diode array and mass spectrometer in positive ionisation mode. The investigated antibiotics include three penicillins (amoxicillin, ampicillin, penicillin G), two cephalosporins (ceftazidime, ceftriaxone), and two tetracyclines (tetracycline, doxycycline). The studied antibiotics were extracted from waste water samples using hydrophilic-lipophilic balanced cartridges. The extraction of antibiotics from water matrices was tested at several pH values. The best recoveries were obtained at pH 3 and 7 respectively. Depending on the nature of antibiotic, the limits of detection and quantification were obtained in the range of 0.07-0.92 µg mL−1 and 0.21-2.77 µg mL−1 respectively. Influent and effluent waste water samples were collected from a Waste Water
https://www.infona.pl/resource/bwmeta1.element.-psjd-doi-10_2478_s11532-013-0263-y
China Solid Phase Extraction (SPE) Consumables Market Research Report 2017 - RnR Market ResearchChina Solid Phase Extraction (SPE) Consumables Market Research Report 2017 - RnR Market Research
China Solid Phase Extraction (SPE) Consumables Market Research Report 2017 is a market research report available at US $3400 for a Single User PDF License from RnR Market Research Reports Library.
http://www.rnrmarketresearch.com/china-solid-phase-extraction-spe-consumables-market-research-report-2017-market-report.html
A rapid method for extraction of total lipids from whey protein concentrates and separation of lipid classes with solid phase...
TY - JOUR. T1 - A rapid method for extraction of total lipids from whey protein concentrates and separation of lipid classes with solid phase extraction. AU - Vaghela, M. N.. AU - Kilara, A.. PY - 1995/10/1. Y1 - 1995/10/1. N2 - A modified procedure for extraction of total lipids from whey protein concentrates was developed such that stable emulsion with extracting solvents was avoided and the solvent system remained monophasic. Nonlipid contaminants from the extract were removed using gel filtration instead of traditional aqueous washing to prevent any loss of polar lipids. The extraction of total lipids by the modified procedure was complete and comparable with a reference procedure. Traditional thin-layer chromatography is tedious and more qualitative than quantitative for lipid class separation. Total lipids were further separated into free fatty acids, phospholipids, cholesterol ester, triacylglycerol, cholesterol, diacylglycerol, and monoacylglycerol, using modified solid phase extraction ...
https://pennstate.pure.elsevier.com/en/publications/a-rapid-method-for-extraction-of-total-lipids-from-whey-protein-c
Boom method - WikipediaBoom method - Wikipedia
Boom method (Boom nucleic acid extraction method) is a solid phase extraction method for isolating nucleic acid from a biological sample. This method is characterized by absorbing the nucleic acids (NA) to the silica beads. Boom method (Boom nucleic acid extraction method) is a solid phase extraction method for isolating nucleic acid (NA) from biological samples. Essential of this method is the use of silica beads, capable of binding the NA in the presence of a chaotropic substance according to the effect. This method is one of the most widespread methods for isolating nucleic acids from biological samples and is known as a simple, rapid, and reliable method for the small-scale purification of NA from biological sample. This method is said to have been developed and invented by Willem R. Boom et al. around 1990. However, the aforementioned chaotropic effect itself was already known and already reported by Vogelstein and Gillespie before the development of the BOOM method. So the contribution ...
https://en.wikipedia.org/wiki/Boom_method
黨參指標成分分析研究 臺灣博碩士論文知識加值系統黨參指標成分分析研究 臺灣博碩士論文知識加值系統
從台灣市場購得舒黨Su-Dangshen (Codonopsis tubulosa)和紋黨Wun-Dang.(C. pilosula)，分別用水萃取後，再經solid phase extraction (SPE) 濃縮乾燥，利用核磁共振光譜儀(1H-NMR)分析時，從舒黨發現兩個新四級銨鹽codotubulosine A和codotubulosine B 生物鹼。本篇論文將台灣及中國大陸市場收集各類黨參樣品共42個，利用1H-NMR分析定量各樣品中codotubulosine A、codotubulosine B 生物鹼及adenosine 和5-(hydroxymethyl)furfural之含量。分析結果在黨參、素花黨參、川黨參中以codotubulosine A 為主要成分，在管花黨參中以codotubulosine A 和B 為主要成分，新疆黨參、羊乳、金錢豹和球花黨參均未發現 codotubulosine A 和 B；目前台灣及中國大陸市場常用藥材，將黨參、舒黨、素花黨參和川黨參視為主要商品。因此本論文將codotubulosine A 和 B生物鹼，建議作為黨參之指標成分。利用SPE結合1H-NMR可快速鑑定市售黨參藥材的品種
https://ndltd.ncl.edu.tw/cgi-bin/gs32/gsweb.cgi/login?o=dnclcdr&s=id=%22096NCKU5065110%22.&searchmode=basic
Determination of Drugs by Online Column-Switching Liquid Chromatography | AVESİSDetermination of Drugs by Online Column-Switching Liquid Chromatography | AVESİS
A fully automated and validated 2D online solid-phase extraction (SPE) high-performance liquid chromatographic method was described for the direct simultaneous determination of clenbuterol (CLEN) and doxazosin (DOX) in spiked human plasma samples. Chromatographic separation of the analytes was achieved by column-switching. SPE column packed with restricted access material for depleting matrix and a reversed phase HPLC column for eluting analytes were used with UV detection on 250 nm. A 10 mM acetate buffer (pH: 4) and acetonitrile mixture was used in gradient elution with 1 mL/min flow rate, as mass spectrometry friendly mobile phase. Calibration graphs were prepared for spiked plasma, and good linearity was achieved over a dynamic range of 75.0 ng/mL-200.0 mu g/mL for CLEN and 37.5 ng/mL-100.0 mu g/mL for DOX. Detection and quantification limits were 8.47 and 11.94 ng/mL, 25.66 and 36.18 ng/mL for CLEN and DOX, respectively. Online column-switching liquid chromatography technique combines the ...
https://avesis.istanbul.edu.tr/yayin/5ab3c6ce-ef44-4036-b13d-7bd916f6142c/determination-of-drugs-by-online-column-switching-liquid-chromatography
Brevet US5598933 - Method for extraction, extraction cartridge and automated extraction ... - Google BrevetsBrevet US5598933 - Method for extraction, extraction cartridge and automated extraction ... - Google Brevets
An extraction cartridge, for extracting a component from a composition, contains a packing composition including a buffer composition, diatomaceous earth and absorbent. The cartridge is made by heating each component to assure it is free from contaminants. The diatomaceous earth is sifted to obtain a particular particle size. The cartridge also includes frits and filters for holding the packing composition within the cartridge. All of the components of the cartridge are selected or processed to assure that no contaminants are leached into the sample being extracted. A processing system automatically processes a plurality of cartridges. The processing system, which is capable of continuous operation, includes a platform, a rack for holding the cartridges, sample vials and extraction tubes. A walking beam conveyor system moves the rack along the platform and a system of robotic arms automatically transfers the sample to be extracted from the sample vial to the extraction cartridge and adds a predetermined
http://www.google.fr/patents/US5598933
Biotage - Optimized Sample Preparation Method for Alcohol BiomarkersBiotage - Optimized Sample Preparation Method for Alcohol Biomarkers
ISOLUTE® NH2 solid phase extraction cartridges work well for detecting alcohol biomarkers in human urine, and a recent study reported a successful throughput of 6,000 samples per year. The key advantage to this method is the elimination of the evaporation step prior to analysis by LC-MS/MS.. A new application note from Biotage (AN818.v1) offers some suggestions to optimize this method further, and also verifies the method on patient samples. The ISOLUTE NH2 cartridge format demonstrated as a viable option for urine measurements over a relevant concentration range in clinical reference laboratories.. ...
http://www.biotage.com/news/optimized-sample-preparation-method-for-alcohol-biomarkers
A case of death after ingestion of an agrochemical spreading agent<...
TY - JOUR. T1 - A case of death after ingestion of an agrochemical spreading agent. AU - Usui, Kiyotaka. AU - Hayashizaki, Yoshie. AU - Okubo, Yoshikazu. AU - Hashiyada, Masaki. AU - Funayama, Masato. PY - 2011/7/15. Y1 - 2011/7/15. N2 - An agrochemical spreading agent was found near the slightly decomposed corpse of a deceased female. The appearance of the stomach contents suggested that ingestion of a surfactant had occurred before death. The spreading agent was found to contain nonionic nonylphenol ethoxylates (NPEOn) and anionic sulfonated naphthalene-formaldehyde condensates (SNFCn). A solid phase extraction cartridge containing a mixed reversed phase-weak anion exchange sorbent (Oasis WAX, Waters) was used to successfully extract both NPEOn and SNFCn from the blood. The cartridge was preconditioned with methanol and acetic acid (AcOH). After the dilute blood sample was applied to the cartridge, it was washed with AcOH, and then NPEOn and SNFCn were eluted with methanol/dichloromethane ...
https://tohoku.pure.elsevier.com/en/publications/a-case-of-death-after-ingestion-of-an-agrochemical-spreading-agen
February | 2013 | cd antigens
Eligible patients acquired their individualized dose of MTX on day 1 and blood samples had been collected for 48 h, until day 3, for your evaluation of MTX. Sufferers obtained thirty mg CP 690,550 every single twelve h from day 3 till day 6. On day 6, serial blood samples have been taken for examination STAT inhibitors of CP 690,550. On day 7, patients received their weekly MTX dose mixed with a 30 mg dose of CP 690,550, blood samples had been collected for your following 48 h for evaluation of CP 690,550 and MTX. Blood samples for PK examination of CP 690,550 were collected on day 1 at 0 h, days 6 and 7 at 0, 0. 25, 8 and twelve h, and also at 24 and 48 h publish day 7 dosing. Blood samples for PK examination of MTX have been collected on days 1?3 and days 7?9 at 0, 24 and 48 h.. Samples had been analysed for CP 690,550 concentrations making use of validated solid phase extraction followed by liquid chromatography/tandem mass spectrometry methodology. Samples had been analysed for MTX ...
https://cdantigens.com/2013/02
Publications - Institut des Sciences Analytiques (ISA) - UMR 5280Publications - Institut des Sciences Analytiques (ISA) - UMR 5280
Charlène Pouech, Florent Lafay, Laure Wiest, Robert Baudot, Didier Léonard, et al.. Monitoring the extraction of additives and additive degradation products from polymer packaging into solutions by multi-residue method including solid phase extraction and ultra-high performance liquid chromatography-tandem mass spectrometry analysis. Analytical and Bioanalytical Chemistry, Springer Verlag, 2014, 406 (5), pp.1493-1507. 〈10.1007/s00216-013-7551-4〉. 〈hal-00924245〉 ...
http://isa-lyon.fr/?page_id=1055
MSACL 2020 US : OwusuMSACL 2020 US : Owusu
Abstract. INTRODUCTION: C-peptide is a widely used marker of endogenous insulin secretion. It is used for assessing residual beta cell function and in the diagnostic workup of hypoglycemia. C-peptide is routinely measured in the clinical laboratory by immunoassays, which are sensitive but prone to limitations such as cross-reactivity, between-lot variability, and a lack of concordance across different platforms. LC-MS/MS methods are more specific and can be multiplexed. Previous LC-MS/MS methods developed for serum c-peptide measurement detected intact peptide. Unfortunately, intact peptide is poorly ionized, requiring immunoaffinity extraction or solid phase extraction with two-dimensional chromatography. OBJECTIVE: The objective of this study was to develop and validate a novel enzyme (Glu-C) digestion-based LC-MS/MS assay for the quantification of serum c-peptide. METHODS: The internal standard was isotopically labeled at two leucine residues: EAED*LQVGQVELGGGPGAGSLQP*LALEGSLQ. Serum proteins ...
https://www.msacl.org/view_abstract/view_abstract_in_program.php?id=1334&event=2020%20US
Journal: Analytica chimica acta / Source: 2012 v.740 / Subject: gas chromatography-mass spectrometry and derivatization - PubAg...Journal: Analytica chimica acta / Source: 2012 v.740 / Subject: gas chromatography-mass spectrometry and derivatization - PubAg...
A sensitive method has been developed for the trace analysis of PAHs and their oxidation products (i.e., nitro-, oxy-, and hydroxy-PAHs) in air particulate matter (PM). Following PM extraction, PAHs, nitro-, oxy-, and hydroxy-PAHs were fractionated using solid phase extraction (SPE) based on their polarities. Gas chromatography-mass spectrometry (GC-MS) conditions were optimized, addressing inject ...
https://pubag.nal.usda.gov/?f%5Bjournal_name%5D%5B%5D=Analytica+chimica+acta&f%5Bsource%5D%5B%5D=2012+v.740&f%5Bsubject_term%5D%5B%5D=gas+chromatography-mass+spectrometry&f%5Bsubject_term%5D%5B%5D=derivatization&facet.sort=index&per_page=50&sort=title
Fast and Sensitive Method for Determination of Domoic Acid in Mussel Tissue : Table 2Fast and Sensitive Method for Determination of Domoic Acid in Mussel Tissue : Table 2
HPLC: high performance liquid chromatography; UV: ultraviolet detection; CE: capillary electrophoresis; FLD: fluorimetric detection; MS: mass spectrometry; MS/MS: tandem mass spectrometry; SPE: solid phase extraction; PLE: pressure liquid extraction ...
https://www.hindawi.com/journals/tswj/2016/8404092/tab2/
Ultra trace analysis of PAHs by designing simple injection of large amounts of analytes through the sample reconcentration on...
A simple solventless injection method was introduced based on the using of a solid-phase microextraction (SPME) fiber for injection of large amounts of the analytes extracted by the magnetic solid phase extraction (MSPE) procedure. The resulted extract from MSPE procedure was loaded on a G-coated SPME fiber, and then the fiber was injected into the gas chromatography (GC) injection port. This method combines the advantages of exhaustive extraction property of MSPE and the solvent-less injection of SPME to improve the sensitivity of the analysis. In addition, the analytes were re-concentrated prior to inject into the gas chromatography (GC) inlet because of the organic solvent removing from the remaining extract of MSPE technique. Injection of the large amounts of analytes was made possible by using the introduced procedure. Fourteen polycyclic aromatic hydrocarbons (PAHs) with different volatility were used as model compounds to investigate the method performance for volatile and semi-volatile ...
http://www.nextbio.com/b/search/article.nb?id=26592576
Determination of benzoapyrene in traditional, industrial and semi-industrial breads using a modified QuEChERS extraction,...Determination of benzoapyrene in traditional, industrial and semi-industrial breads using a modified QuEChERS extraction,...
A fast and simple modified QuEChERS extraction method was developed for determination of Benzo[a]pyrene (BaP) in 137 traditional (Sangak), semi-industrial (Sangak) and industrial bread samples using spiked calibration curves by GC/MS. Sample preparation includes extraction of BaP into acetone followed by cleanup with dispersive solid phase extraction. The limit of detection and limit of quantification were 0.3 ng/g and 0.5 ng/g, respectively. The values for recoveries and RSD were calculated as 110.5-119.85% and ,11.6% respectively. Average concentration of BaP in Sangak bread samples of Shiraz and Tehran was 0.59 and 0.60 ng/g, respectively. 35.5% of samples of breads collected in Tehran were contaminated with BaP at the amount higher than maximum levels regulated in processed cereal-based foods and baby foods by European Commission (1 ng/g). Seventeen percent of samples of breads collected in Shiraz were contaminated with BaP which 13 % of total samples were ,1 ng/g. BaP content in all ...
http://eprints.skums.ac.ir/681/
Christian Huck | Authors | Chromatography OnlineChristian Huck | Authors | Chromatography Online
Quantification of European Union (EU)-priority polycyclic aromatic hydrocarbons (PAHs) in plant matrices is a crucial task. Various methods for enrichment and preconcentration, such as the preloaded-pipette tip solid‑phase extraction (SPE) (1), are available. Nevertheless, analyte recovery as a result of homogenization, sample preparation, and extraction are rarely discussed in the field of phytopharmacy. This study deals with the recovery in dry plant extracts, which are typically used in phytopharmaceuticals and reflect the actual polycyclic aromatic hydrocarbon content in the commercially available end product (2). The aim of this study was to monitor benzo[a]pyrene, benzo[a]anthracene, chrysene, and benzo[b]fluoranthene loss of spiked samples as a result of commonly-used sample pretreatment, extraction, filtering, and evaporating techniques in 1:1 (v/v) cyclohexane-ethyl acetate primulae flos and sambuci flos dry extracts. Results showed that improper sample preparation can lead to false ...
https://www.chromatographyonline.com/authors/christian-huck
DGT: using hydrogels to determine antimony - Environmental Science: Processes & Impacts blogDGT: using hydrogels to determine antimony - Environmental Science: Processes & Impacts blog
Researchers at Griffith University in Australia have developed a new diffusive gradients in thin films (DGT) method to determine the concentration of antimony in polluted waters. This new technique also allows them to measure in situ the speciation of this metalloid in its different oxidation states. Speciation could be carried out before using solid phase extraction (SPE) cartridges, but these present some limitations when it comes to analysing some complex mixtures like seawater.. On the other hand, DGT is a sampling technique that can be used to measure a myriad of analytes in different mixtures. DGT uses a combination of hydrogel-based layers to extract and retain the analyte, that can be eluted and determined later on. This technique has been used to measure trace metals, metalloids, sulphides, phosphates and ammonium. In this case, to enhance the affinity of DGT membranes to antimony, researchers have used thiol-based silica gel layers.. In this paper, the authors present a combination of ...
http://blogs.rsc.org/em/2016/06/28/dgt-using-hydrogels-to-determine-antimony/
QuEChERS consumables | Norlab
Biotage QuEChERS products include extraction tubes for the initial extraction and partitioning of analytes from homogenized food samples, and clean up tubes for the dispersive solid phase extraction. All Biotage QuEChERS products come packed in a rack for ease of storage and use on the bench. Additionally, solvent resistant paper labels aid hassle free sample indentification. Biotage supplies pre-weighed extraction and clean up tubes that conform with AOAC1,2 and the EU3 published methods, including those for waxed and highly pigmented fruit and vegetable samples. ...
https://norlab.fi/infocenter/841
Puget Sound Stories · University of Puget SoundPuget Sound Stories · University of Puget Sound
Between classes, Westerman would dash off to the lab in Thompson Hall to thaw waste-water samples in a water bath. In the afternoons, she prepared the samples in the trace analysis lab, where light streamed in from windows overlooking the glass-walled Oppenheimer Café and the Brown Family Courtyard. Decked out in lab coat, gloves, and safety glasses, and with Johnny Cash belting out mournfully through a speaker, Westerman would begin by putting a small volume of thawed wastewater samples through a filter to clean out the solids. It definitely didnt smell great, Westerman remembers. But it was a lot more dilute than the contents of toilet flush, she adds, and youd be surprised how quickly you get used to it. For the focused work of solid phase extraction, the next step of sample preparation, Westerman would fold her 6-foot-1-inch frame onto a lab stool in front of the fume hood. There, she put small amounts of the cloudy liquid through an array of tubes that looked like upside-down ...
https://www.pugetsound.edu/stories/detail/something-in-the-water/
Biotage - Biotage® Extrahera™Biotage - Biotage® Extrahera™
This application note describes a simple, effective protocol for the extraction of methylmalonic acid (MMA) from serum using ISOLUTE® SAX strong anion exchange solid phase extraction plates, demonstrating high, reproducible analyte recoveries with low protein and phospholipid content in the extracts. Very clean extracts are possible due to the purely anion exchange retention mechanism available using this silica based sorbent. This minimizes the co-extraction of endogenous interferences through hydrophobic (or non-polar) retention. The method can be easily automated using the Biotage Extrahera. Details of the automated procedure and data comparing manual and automated method performance are included ...
http://biotage.com/product-page/biotage-extrahera
Macromolecular Compounds Obtained By Reactions Only Involving Carbon-To-Carbon Unsaturated BondsMacromolecular Compounds Obtained By Reactions Only Involving Carbon-To-Carbon Unsaturated Bonds
Problem] To provide a polymer which enables the solid phase extraction of a metal ion, particularly a rare earth element, and from which a metal of interest can be collected by burning the polymer after the adsorption of the metal of in ...
http://www.sumobrain.com/ICL-C08F291.html
Pressurized liquid extraction using water/isopropanol coupled with solid-phase extraction cleanup for industrial and...Pressurized liquid extraction using water/isopropanol coupled with solid-phase extraction cleanup for industrial and...
A broad range of organic compounds is recognized as environmentally relevant for their potential adverse effects on human and ecosystem health. This method was developed to better determine the distribution of 61 compounds that are typically associated with industrial and household waste as well as some that are toxic and known (or suspected) for endocrine-disrupting potential extracted from environmental sediment samples. Pressurized liquid extraction (PLE) coupled with solid-phase extraction (SPE) was used to reduce sample preparation time, reduce solvent consumption to one-fifth of that required using dichloromethane-based Soxhlet extraction, and to minimize background interferences for full scan GC/MS analysis. Recoveries from spiked Ottawa sand, commercially available topsoil, and environmental stream sediment, fortified at 4-720 ??g per compound, averaged 76 ?? 13%. Initial method detection limits for single-component compounds ranged from 12.5 to 520 ??g/kg, based on 25 g samples. Results from
https://pubs.er.usgs.gov/publication/70029450
Aqueous two phase extraction of anthocyanins from red cabbage. - [email protected]
Copyright (c) 2004-2011 http://ir.cftri.com. All rights reserved. Designed and Hosted by Food Science and Technology Information Services (FOSTIS). Powered by Eprints. [email protected] supports OAI 2.0 with a base URL of ...
http://ir.cftri.com/11412/
Polar Strong Anion (psa) Exchange - Accubondii Sorbents For Spe Chromatography, Agilent Technologies
Polar Strong Anion (PSA) Exchange - AccuBONDII Sorbents for SPE Chromatography, Agilent Technologies : Bulk sorbents for packing SPE cartridges or to
http://www.egeneralmedical.com/vwr-89027-402.html
MEDLINE - Resultado p gina 1
α-Cobratoxin (CTX) is a large peptide (71 amino acids) with strong analgesic effect and may be misused in sports such as horse racing. To prevent such misuse, a sensitive method is required for detection and confirmation of the toxin in equine samples. CTX was extracted from equine plasma using an optimized mixed-mode solid-phase extraction (SPE) procedure. Extracted CTX was reduced with dithiothreitol and alkylated with iodoacetamide, and then was digested by trypsin at 56 C for 30min. The digest was analysed by liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS), and tryptic peptides T2 ( CFITPDITSK ) and T4 ( TWCDAFCSIR ) were monitored for detection and confirmation of CTX. The limit of detection (LOD) was 0.05ng/mL for CTX in plasma, and the limit of confirmation (LOC) 0.2ng/mL. Unlike small peptides consisting of the 20 canonical amino acids, CTX was stable in equine plasma at ambient temperature for at least 24h. The developed analytical method was successfully applied ...
http://bases.bireme.br/cgi-bin/wxislind.exe/iah/online/?IsisScript=iah/iah.xis&nextAction=lnk&base=MEDLINE&lang=p&format=detailed.pft&indexSearch=EX&exprSearch=D12.776.831.244
Thermo Scientific™ HyperSep™ C18 Cartridges 5g Bed Weight; 25mL Column Volume Thermo Scientific™ HyperSep™ C18 CartridgesThermo Scientific™ HyperSep™ C18 Cartridges 5g Bed Weight; 25mL Column Volume Thermo Scientific™ HyperSep™ C18 Cartridges
Thermo Scientific™ HyperSep™ C18 Cartridges 5g Bed Weight; 25mL Column Volume Thermo Scientific™ HyperSep™ C18 Cartridges SPE Columns
https://www.fishersci.co.uk/shop/products/hypersep-c18-cartridges-12/10166203
Thermo Scientific HyperSep Cyano Cartridges 100mg Bed Weight; 1mL Column | Fisher ScientificThermo Scientific HyperSep Cyano Cartridges 100mg Bed Weight; 1mL Column | Fisher Scientific
Shop a large selection of SPE Columns products and learn more about Thermo Scientific HyperSep Cyano Cartridges 100mg Bed Weight; 1mL Column 100mg Bed Weight; 1mL Column Volume.
https://www.fishersci.com/shop/products/hypersep-cyano-solid-phase-extraction-spe-cartridges/03252603?tab=document
Registration Dossier - ECHARegistration Dossier - ECHA
The skin sensitisation property of the registration substance, sodium N-lauroyl glutamate, is derived based on the read-across to sodium N-cocoyl glutamate and sodium N-cocoyl glycinate. The registration substance and the read-across sources are amides of fatty acids and amino acids and can be characterized as N-fatty acyl amino acids, of which endogeous occurence and metabolism are known. Based on the comparable chemical structure, comparable phys-chem data and expected comparable metabolism, these compound are likely exhibit comparable toxicity profiles. Sodium N-cocoyl glutamate was investigated for its skin sensitization property according to the OECD 406 (Buehler method). 0.5 ml of the test material wasoccusively applied to the clipped skin of guinea pigs for 6 hours as induction and challenge treatment. None of the twenty treated animals responded. Sodium N-cocoyl glutamate is not skin sensitizing. Sodium N-cocoyl glycinate was investigated for its skin sensitization property according ...
https://echa.europa.eu/registration-dossier/-/registered-dossier/25060/7/5/2
Direct linkDirect link
This thesis focuses on the use of molecularly imprinted polymers as selective sorbents for solid-phase extraction (MISPE). The MISPE methods developed were mainly intended for use with biological samples, such as human urine and blood plasma. These body fluids are complex samples, which often need an effective clean-up step before analysis to reduce the levels of possible interfering substances from the matrix, especially if the analytes are present in trace amounts. Solid-phase extraction (SPE) is a well-established and routinely used method for clean-up and preconcentration of samples from diverse matrices. However, conventional SPE sorbents often lack selectivity, leading to co-extraction of interferences, which negatively affects the following detection method. One of the advantages of MISPE is the built-in selectivity for a target analyte, or class of structurally related analytes, enabling the efficient clean-up that is often required for biological samples. The built-in selectivity of ...
http://su.diva-portal.org/smash/record.jsf?pid=diva2%3A189285
SHANGHAI YIRUI BIOTECHNOLOGY CO.,LTD
CHROMFILTER is a Hongkong company composed by a well-trained working team having experiences in this profession for more than 20 years. As an excellent HPLC consumable products manufacturer, supplier and exporter, we have a factory in Songjiang District, Shanghai City. Our main products include all kinds of chromatography (GC/HPLC), laboratory filtration and laboratory accessories.CHROMFILTER designs, manufactures, distributes and sells a variety of laboratory products including syringe filters and membranes; sample vials and caps; SPE column; Disposable Vacuum Filtration system; sealing matts and other GC/HPLC high quality glass and plastic supplies.
http://www.chromfilter.com
NEWS--SHANGHAI YIRUI BIOTECHNOLOGY CO.,LTD
CHROMFILTER is a Hongkong company composed by a well-trained working team having experiences in this profession for more than 20 years. As an excellent HPLC consumable products manufacturer, supplier and exporter, we have a factory in Songjiang District, Shanghai City. Our main products include all kinds of chromatography (GC/HPLC), laboratory filtration and laboratory accessories.CHROMFILTER designs, manufactures, distributes and sells a variety of laboratory products including syringe filters and membranes; sample vials and caps; SPE column; Disposable Vacuum Filtration system; sealing matts and other GC/HPLC high quality glass and plastic supplies.
http://www.chromfilter.com/news.html
B&O Replacement Cartridge Models | SoundsmithB&O Replacement Cartridge Models | Soundsmith
This page lists B&O compatible phono cartridges, for other turntables we have a wide range of solutions see drop-down menus on page top for all our cartridges, audio products and services.. You have come to the best place for a solution. We are the only manufacturer of these cartridges, and we are authorized to do so under license by Bang and Olufsen. They are fully warranteed against manufacturing defect for one full year. Want to upgrade your cartridge and performance? Easily done. The B&O plug-in replacement cartridge design allows use of an interchangeable and wide range of cartridge models and performance for each turntable model - within each of the two groups below. (Group 1 = SMMC1, SMMC2, SMMC3, SMMC4 and The Voice; Group 2 = SMMC20E, SMMC20EN, SMMC20CL and SMMC20CL+) PLEASE NOTE; Use our model lookup tool to see which group your turntable needs. Cartridges purchased and opened (broken seal) cannot be returned for refund.. Do you want to use a B&O cartridge (Group 1) on a NON-B&O ...
https://www.sound-smith.com/bo-replacement-cartridge-models
Development and validation of an automated solid-phase extraction and liquid chromatographic method for determination of...
We use cookies to ensure that we give you the best experience on our website. If you click Continue well assume that you are happy to receive all cookies and you wont see this message again. Click Find out more for information on how to change your cookie settings ...
https://www.tropicalmedicine.ox.ac.uk/publications/22914/
Fredrick D. Foster | Authors | Chromatography OnlineFredrick D. Foster | Authors | Chromatography Online
This article discusses the benef ts of using automated dispersive solid-phase extraction (dSPE) rather than standard SPE in urine analysis. ...
https://www.chromatographyonline.com/authors/fredrick-d-foster
LABORATOIRE DE GENIE CHIMIQUE
Solid-phase extraction for simultaneous separation and preconcentration of Fe(III) and Zn(II) traces using three chelatants and Ramelak bark-derived activated carbon as a new bio- ...
http://lgc.cnrs.fr/spip.php?article2032
Patent US5476368 - Sterile fluid pump diaphragm construction - Google PatentsPatent US5476368 - Sterile fluid pump diaphragm construction - Google Patents
A fluid pumping assembly for particular use in delivery of sterile fluid used in surgical procedures, includes a pump control structure to which a replaceable fluid pumping cartridge is connected and disconnected to provide convenient replacement and disposability of the cartridge. The pump cartridge is self-contained in that it includes a fluid pump which is adapted for automatic connection to a pump drive structure when the cartridge is inserted into the assembly, so that the sterile fluid is pumped only through the pumping cartridge and fluid flow is entirely isolated from the pump control structure to ensure that the fluid is maintained sterile during pumping. The cartridge can include a selectively activated pulsation control to enable discharging the fluid from the cartridge in either a continuous flow or pulsating flow of the fluid. The cartridge can also include fluid flow dampening and safety vent features. The pump control structure can provide a pneumatic drive system which cycles pressurized
http://www.google.com/patents/US5476368?dq=5,893,120
Carbon blackCarbon black
"Graphitized carbons for solid-phase extraction". Journal of Chromatography A. 885 (1-2): 73-95. doi:10.1016/S0021-9673(00)00085 ... The most common use (70%) of carbon black is as a pigment and reinforcing phase in automobile tires. The structure and ...
https://en.wikipedia.org/wiki/Carbon_black
MCPBMCPB
Wells, M. J. M.; Yu, L. Z. (2000). "Solid-phase extraction of acidic herbicides". Journal of Chromatography A. 885 (1-2): 237- ...
https://en.wikipedia.org/wiki/MCPB
Fluorous chemistryFluorous chemistry
This property can be useful in organic synthesis and separation methods such as solid phase extraction. In practice, a ... Zhang, W.; Curran, D. P. (2006). "Synthetic Applications of Fluorous Solid-Phase Extraction (F-SPE)". Tetrahedron. 62 (51): ... for fluorous phases or fluorous-derivatized solid phases allows for near complete recovery of the tagged reagent (i.e., near ... These reagents can then be separated from organic solvents by extraction with fluorinated solvents such as perfluorohexane. The ...
https://en.wikipedia.org/wiki/Fluorous_chemistry
Phenolic content in winePhenolic content in wine
Mattivi F. (1993). "Solid phase extraction of trans-resveratrol from wines for HPLC analysis". Zeitschrift für Lebensmittel- ... Vrhovsek U. (1998). "Extraction of Hydroxycinnamoyltartaric Acids from Berries of Different Grape Varieties". J Agric Food Chem ... The amount of phenols leached is known as extraction. These compounds contribute to the astringency, color and mouthfeel of the ... The technique allows for a better extraction of phenolic compounds. The exposure of wine to oxygen in limited quantities ...
https://en.wikipedia.org/wiki/Phenolic_content_in_wine
Stephen G. WeberStephen G. Weber
They have developed thin films for solid-phase micro extraction (SPME). Weber develops electrochemical detectors for use with ...
https://en.wikipedia.org/wiki/Stephen_G._Weber
Use of beta-adrenergic agonists in livestockUse of beta-adrenergic agonists in livestock
Solid-phase extraction technology was employed for sample purification and enrichment. After extraction and purification, the ... 1 for solid and liquid samples, respectively. "Beta-agonists: What are they and should I be concerned?". Retrieved 9 January ...
https://en.wikipedia.org/wiki/Use_of_beta-adrenergic_agonists_in_livestock
CarisoprodolCarisoprodol
Sensitive GC-MS quantitation after solid phase extraction in 19 fatal cases". Forensic Science International. 86 (3): 173-80. ...
https://en.wikipedia.org/wiki/Carisoprodol
Polymer devolatilizationPolymer devolatilization
Examples are: Solid polymer, liquid phase: Extraction of caprolactam from Polyamides with water. Solid polymer, gas phase: ... Devolatilization can be carried out when a polymer is in the solid or liquid phase, with the volatile components going into a ... Liquid polymer, gas phase: Removal of Styrene from Polystyrene via vacuum. It is usual for different types of devolatilization ... The thermodynamic activity of volatiles needs to be higher in the polymer than in the other phase for them to leave the polymer ...
https://en.wikipedia.org/wiki/Polymer_devolatilization
DNA separation by silica adsorptionDNA separation by silica adsorption
Toward a microchip-based solid-phase extraction method for isolation of nucleic acids. Electrophoresis, 23, 727-733 (2002). ( ...
https://en.wikipedia.org/wiki/DNA_separation_by_silica_adsorption
Dissolved organic carbonDissolved organic carbon
... and solid-phase extraction. Among them solid-phase extraction is considered as the cheapest and easiest technique. Blackwater ... Resuspension-induced partitioning of organic carbon between solid and solution phases from a river-ocean transition. Mar. Chem ... and a dissolved phase (DIC). PIC mainly consists of carbonates (e.g., CaCO3), DIC consists of carbonate (CO32-), bicarbonate ( ...
https://en.wikipedia.org/wiki/Dissolved_organic_carbon
YessotoxinYessotoxin
Solid phase extraction also can be used to isolate YTXs from the sample medium. This technique separates the components of a ... shellfish by high-performance liquid chromatography-tandem mass spectrometry based on enrichment by solid-phase extraction". ... This can be achieved by several methods: Liquid-liquid extraction or solvent extraction can be used to isolate YTXs from the ... The drawback of using the solvent extraction method is the levels of analyte recovery can be poor, so any results obtained from ...
https://en.wikipedia.org/wiki/Yessotoxin
Spongiochloris spongiosaSpongiochloris spongiosa
Bioactive phenols in algae: The application of pressurized-liquid and solid-phase extraction techniques. L. Onofrejová, J. ...
https://en.wikipedia.org/wiki/Spongiochloris_spongiosa
Naturally occurring phenolsNaturally occurring phenols
Further fractionation of the extract can be achieved using solid phase extraction columns, and may lead to isolation of ... The application of pressurized-liquid and solid-phase extraction techniques". Journal of Pharmaceutical and Biomedical Analysis ... Phenol extraction is a processing technology used to prepare phenols as raw materials, compounds or additives for industrial ... Extraction can be performed using different solvents. There is a risk that polyphenol oxidase (PPO) degrades the phenolic ...
https://en.wikipedia.org/wiki/Naturally_occurring_phenols
QuEChERSQuEChERS
... is a solid phase extraction method for detection of pesticide residues in food. The name is a portmanteau word formed ... Following this, the sample is put through a dispersive solid phase extraction cleanup prior to analysis by gas-liquid ... Some modifications to the original QuEChERS method had to be introduced to ensure efficient extraction of pH-dependent ...
https://en.wikipedia.org/wiki/QuEChERS
MetoprololMetoprolol
Albers S, Elshoff JP, Völker C, Richter A, Läer S (2005). "HPLC quantification of metoprolol with solid-phase extraction for ... thereby decreasing the slope of phase 4 in the nodal action potential (reducing Na+ uptake) and prolonging repolarization of ... phase 3 (slowing down K+ release).[non-primary source needed] It also suppresses the norepinephrine-induced increase in the ...
https://en.wikipedia.org/wiki/Metoprolol
EstazolamEstazolam
"Determination of estazolam in plasma by high-performance liquid chromatography with solid-phase extraction" (PDF). Anal Sci. 18 ...
https://en.wikipedia.org/wiki/Estazolam
Paul L. EdmistonPaul L. Edmiston
Preferential Extraction of Hydrocarbons from Fire Debris Samples by Solid Phase Microextraction. Journal of Forensic Sciences. ... J Non-Crystalline Solids, 351, 3174-3178 (2005). Jourden, M. J.*; Geiss, P.*; Thomenius, M. J.*; Horst, L. A.*; Barty, M. M.*; ... Selective Detection of Gas-Phase TNT by Integrated Optical Waveguide Spectrometry Using Molecularly Imprinted Sol-Gel Sensing ...
https://en.wikipedia.org/wiki/Paul_L._Edmiston
Radioanalytical chemistryRadioanalytical chemistry
These separation methods include precipitation, Ion Exchange, Liquid Liquid extraction, Solid Phase extraction, Distillation, ... The advantage of solid state detectors is the greater resolution of the resultant energy spectrum. Usually NaI(Tl) detectors ...
https://en.wikipedia.org/wiki/Radioanalytical_chemistry
Supercritical adsorptionSupercritical adsorption
Selective Solid-Phase Extraction of a-Tocopherol by Functionalized Ionic Liquid-modified Mesoporous SBA-15 Adsorbent. ... adsorption from supercritical gases in extraction processes and chromatography. Besides, knowledge of gas/solid interface ... The solid sample is placed in a sample holder on one arm of the microbalance while the counterpart is loaded on the other arm. ... However, adsorbed-phase density is the decisive factor for the existence of this end. The state of adsorbate at the "end" ...
https://en.wikipedia.org/wiki/Supercritical_adsorption
Ion suppression in liquid chromatography-mass spectrometryIon suppression in liquid chromatography-mass spectrometry
An effective sample preparation protocol, usually involving either liquid-liquid extraction (LLE) or solid phase extraction ( ... Van Hout, MW; Hofland CM; Niederländer HA; de Jong GJ (2000). "On-line coupling of solid-phase extraction with mass ... "On-line coupling of solid-phase extraction with mass spectrometry for the analysis of biological samples. I. Determination of ... Similar is the effect of reducing the mobile phase flow rate to the nanolitre-per-minute range since, in addition to resulting ...
https://en.wikipedia.org/wiki/Ion_suppression_in_liquid_chromatography–mass_spectrometry
DienoloneDienolone
Trenbolone (trienolone) Waller CC, McLeod MD (2014). "A simple method for the small scale synthesis and solid-phase extraction ...
https://en.wikipedia.org/wiki/Dienolone
Dennis P. CurranDennis P. Curran
Curran also introduced fluorous solid phase extraction, a simple separation technique that enabled much subsequent work. The ... Curran introduced light fluorous reactions, fluorous triphasic reactions, fluorous phase vanishing reactions (with Ilhyong Ryu ... A fluorous-phase strategy for improving separation efficiency in organic synthesis" Science 1997, 275, 823-826. doi 10.1126/ ... and fluorous mixture synthesis (or FMS). FMS is the first example of solution phase synthesis with separation tagging, and it ...
https://en.wikipedia.org/wiki/Dennis_P._Curran
Diagnostic microbiologyDiagnostic microbiology
Solid phase extraction which separates long polymers like DNA from other substances found in the cells. This is similar to ... The lag phase is not well known in microbiology, but it is speculated that this phase consists of the microorganism adjusting ... The log phase is the period where a culture experiences logarithmic growth until nutrients become scarce. The stationary phase ... where the solid phase is fixed and selectively binds a cellular component, allowing for its isolation. Gel electrophoresis is a ...
https://en.wikipedia.org/wiki/Diagnostic_microbiology
Reed McNeil IzattReed McNeil Izatt
Izatt, R. M. Review of selective ion separations at BYU using liquid membrane and solid phase extraction procedures. J. Incl. ... Izatt, R. et al Solid phase extraction of ions of analytical interest using molecular recognition technology. Am. Lab. 1994 Vol ... Rahman, I. et al Determination of lead in solution by solid phase extraction, elution, and spectrophotometric detection using 4 ... Dulanská, S. Pre-concentration and determination of 90Sr in radioactive wastes using solid phase extraction techniques. J. ...
https://en.wikipedia.org/wiki/Reed_McNeil_Izatt
Bioavailability (soil)Bioavailability (soil)
Estimates of bioavailability can also be obtained from chemical solid-phase soil extractions. Fugacity modelling of ... Ionic compounds, such as heavy metals, can be precipitated into the solid phase. Volatile compounds can be lost as aerosols to ... Depending on its chemical properties, a contaminant may or may not be found in the aqueous phase. Organic contaminants may ... bioavailability is based on the solubility and partitioning of compounds into aqueous and non-aqueous phases. This model ...
https://en.wikipedia.org/wiki/Bioavailability_(soil)
XylazineXylazine
Barroso M, Gallardo E, Margalho C, Devesa N, Pimentel J, Vieira DN (April 2007). "Solid-phase extraction and gas ...
https://en.wikipedia.org/wiki/Xylazine
FludiazepamFludiazepam
"Screening and determination of benzodiazepines in whole blood using solid-phase extraction and gas chromatography/mass ...
https://en.wikipedia.org/wiki/Fludiazepam
Spin column-based nucleic acid purificationSpin column-based nucleic acid purification
... is a solid phase extraction method to quickly purify nucleic acids. This method ... extraction. DNA separation by silica adsorption Guanidinium thiocyanate-phenol-chloroform extraction Ethanol precipitation ... relies on the fact that nucleic acid will bind to the solid phase of silica under certain conditions. The stages of the method ... A procedure for the large-scale isolation of highly purified plasmid DNA using alkaline extraction and binding to glass powder ...
https://en.wikipedia.org/wiki/Spin_column-based_nucleic_acid_purification
AlkaneAlkane
"Determination of floral fragrances of Rosa hybrida using solid-phase trapping-solvent extraction and gas chromatography-mass ... This is because even-numbered alkanes pack well in the solid phase, forming a well-organized structure which requires more ... again depending on the ability of the alkane in question to pack well in the solid phase. Alkanes do not conduct electricity in ... In plants, the solid long-chain alkanes are found in the plant cuticle and epicuticular wax of many species, but are only ...
https://en.wikipedia.org/wiki/Alkane
Samuel ConwaySamuel Conway
"Determination of methylisoborneol in channel catfish pond water by solid phase extraction followed by gas chromatography-mass ...
https://en.wikipedia.org/wiki/Samuel_Conway
NeodymiumNeodymium
Phase at STP. solid. Melting point. 1297 K ​(1024 °C, ​1875 °F) ... Currently, most neodymium is extracted from bastnäsite and purified by solvent extraction. Ion-exchange purification is used ... In: Hannay N.B. (eds) The Chemical Structure of Solids. Treatise on Solid State Chemistry, vol 1. Springer, New York, NY. https ... In Hoffman, Hanna J; Shori, Ramesh K (eds.). Solid State Lasers XIV: Technology and Devices. Vol. 5707. p. 325. doi:10.1117/ ...
https://en.wikipedia.org/wiki/Neodymium
Boiling water reactorBoiling water reactor
The two-phase fluid (water and steam) above the core enters the riser area, which is the upper region contained inside of the ... This rise in pressure effectively subcools the reactor coolant instantaneously; the voids (vapor) collapse into solid water. ... The condensate is then pumped through feedwater heaters that raise its temperature using extraction steam from various turbine ... By swirling the two-phase flow in cyclone separators, the steam is separated and rises upwards towards the steam dryer while ...
https://en.m.wikipedia.org/wiki/Boiling_water_reactor
Industry Foundation ClassesIndustry Foundation Classes
Body' indicates a 3D shape which may be represented by B-rep, NURBS, Constructive Solid Geometry (CSG), or swept profiles. It ... A project may include multiple buildings, multiple participants, and/or multiple phases according to the particular use. ... mid-file extraction is not possible, files are slow to parse, and definitions are non-hierarchical.[8] In addition to ifcXML ...
https://en.wikipedia.org/wiki/Industry_Foundation_Classes
HempHemp
When oxidized (often erroneously referred to as "drying"), hemp oil from the seeds becomes solid and can be used in the ... Hemp rope was phased out when manila rope, which does not require tarring, became widely available. Manila is sometimes ... "Extraction of hemp seed using near-critical CO2, propane and dimethyl ether". The Journal of Supercritical Fluids. 173: 105218 ...
https://en.m.wikipedia.org/wiki/Hemp
UraniumUranium
Phase at STP. solid. Melting point. 1405.3 K ​(1132.2 °C, ​2070 °F) ... Gupta, C. K. & Mukherjee, T. K. (1990). Hydrometallurgy in extraction processes. Vol. 1. CRC Press. pp. 74-75. ISBN 978-0-8493- ... 2 (yellow), for U(III), U(IV), U(V), and U(VI), respectively.[103] A few solid and semi-metallic compounds such as UO and US ... 3). Under the right conditions of temperature and pressure, the reaction of solid UF. 4 with gaseous uranium hexafluoride (UF. ...
https://en.wikipedia.org/wiki/Uranium
Deep learningDeep learning
Arrowsmith, J; Miller, P (2013). "Trial watch: Phase II and phase III attrition rates 2011-2012". Nature Reviews Drug Discovery ... Each layer in the feature extraction module extracted features with growing complexity regarding the previous layer.[41] ... Feature processing by deep models with solid understanding of the underlying mechanisms ... composed of a 3-layers self-organising feature extraction neural network module (SOFT) followed by a multi-layer classification ...
https://en.m.wikipedia.org/wiki/Deep_learning
SolubilitySolubility
This solubilization is accompanied by alteration of the "primary solid" and possibly formation of a secondary solid phase. ... This process, known as liquid-liquid extraction, is an important technique in synthetic chemistry. Recycling is used to ensure ... In solid compounds (as opposed to elements), the solubility of a solute element can also depend on the phases separating out in ... For condensed phases (solids and liquids), the pressure dependence of solubility is typically weak and usually neglected in ...
https://en.wikipedia.org/wiki/Water-soluble
AlloyAlloy
... consisting of two or more phases) or intermetallic. An alloy may be a solid solution of metal elements (a single phase, where ... However, as extractive metallurgy was still in its infancy, most aluminium extraction-processes produced unintended alloys ... solid-solid), shear steel (solid-solid), or crucible steel production (solid-liquid), mixing the elements via solid-state ... Unlike steel, in which the solid solution separates into different crystal phases (carbide and ferrite), precipitation ...
https://en.wikipedia.org/wiki/Alloy
PolydimethylsiloxanePolydimethylsiloxane
Stir Bar Sorptive Extraction (SBSE), and Solid Phase Microextraction (SPME) Applied to the Analysis of Roasted Arabica Coffee ... Solid PDMS samples (whether surface-oxidized or not) will not allow aqueous solvents to infiltrate and swell the material. Thus ... However, at short flow times (or low temperatures), it acts like an elastic solid, similar to rubber. Viscoelasticity is a form ... Bicchi, C.; Iori, C.; Rubiolo, P.; Sandra, P. (2002). "Headspace Sorptive Extraction (HSSE), ...
https://en.m.wikipedia.org/wiki/Polydimethylsiloxane
Mars sample-return missionMars sample-return mission
MAV is a 3-meter long, two-stage, solid-fueled rocket that will deliver the collected samples from the surface of Mars to the ... MAV in coast phase in Low Mars orbit after Main engine cutoff awaiting stage separation and second engine startup ... dust adhered to a location on the tube's interior surface where the dust could impede successful coupling and extraction. To ... They would be separated by a coast phase, after which the sample container would be released in orbit. As of early 2022, the ...
https://en.wikipedia.org/wiki/Mars_Sample_Return_Mission
Sedimentation (water treatment)Sedimentation (water treatment)
Solid-phase extraction. *Sublimation. *Ultrafiltration. Devices. *API oil-water separator. *Belt filter ... the settled solids are compressed by gravity (the weight of solids), as the settled solids are compressed under the weight of ... Suspended solids (or SS), is the mass of dry solids retained by a filter of a given porosity related to the volume of the water ... Sedimentation is a physical water treatment process using gravity to remove suspended solids from water.[1] Solid particles ...
https://en.wikipedia.org/wiki/Sedimentation_
LisdexamfetamineLisdexamfetamine
Although lisdexamfetamine has shown limited effectiveness in the treatment of depression in clinical trials, a phase II ... increases the melting point and thereby ensures a solid product.[99] In the case of lisdexamfetamine, this is achieved by ... such as crushing or simple extraction. A relatively sophisticated biochemical process is needed to produce dextroamphetamine ... The phase 1 metabolism of amphetamine analogs is catalyzed by two systems: cytochrome P450 and flavin monooxygenase. ... ...
https://en.wikipedia.org/wiki/Lisdexamfetamine
PetroleumPetroleum
... and solid depend on subsurface conditions and on the phase diagram of the petroleum mixture.[56] ... ExtractionEdit. Oil extraction is simply the removal of oil from the reservoir (oil pool). Oil is often recovered as a water-in ... Oil extraction is costly and often environmentally damaging. Offshore exploration and extraction of oil disturb the surrounding ... Longmuir, Marilyn V. (2001). Oil in Burma : the extraction of "earth-oil" to 1914. Bangkok: White Lotus Press. p. 329. ISBN 978 ...
https://en.m.wikipedia.org/wiki/Petroleum
NobeliumNobelium
Phase .mw-parser-output .nobold{font-weight:normal}. at STP. solid (predicted)[1]. ... out the gold using anion-exchange chromatography before isolating the nobelium by elution from chromatographic extraction ... as stationary organic phase and 0.05 M hydrochloric acid as mobile aqueous phase, or using 3 M hydrochloric acid as an eluant ... It was found that the nobelium chloride produced was strongly adsorbed on solid surfaces, proving that it was not very volatile ...
https://en.m.wikipedia.org/wiki/Nobelium
Extractive metallurgyExtractive metallurgy
Mineral processing and extraction of metals are very energy-intensive processes, which are not exempted of producing large ... Solids containing valuable metals are treated to form intermediate compounds for further processing or converted into their ... Mineral processing operations are needed firstly to concentrate the mineral phases of interest and reject the unwanted material ... During extraction of copper from copper sulfide minerals with Ethaline, chalcocite (Cu2S) and covellite (CuS) produce a yellow ...
https://en.wikipedia.org/wiki/Extractive_metallurgy
Nano-thermiteNano-thermite
A method for producing this material is the dynamic gas-phase condensation method, pioneered by Wayne Danen and Steve Son at ... Highly porous and uniform products can be achieved by super-critical extraction. As with all explosives, research into control ... At the temperatures prevailing during the reaction, the products can be solid, liquid or gaseous, depending on the components ... The powders made by the dynamic gas-phase condensation and the electrothermal synthesis processes are indistinguishable. A ...
https://en.wikipedia.org/wiki/Nano-thermite
Frank HawthorneFrank Hawthorne
Burdett JK, Lee S, Sha WC (1984) The method of moments and the energy levels of molecules and solids. Croat Chem Acta 57: 1193- ... Hydrogen-Line Extraction) showed this not to be the case. Of particular importance are the role of Li, Ti and H in amphiboles, ... reactions and that changes in bond topology correlate with reduced enthalpy of formation for some simple hydrated phases Using ... By combining Graph Theory, Bond-Valence Theory and the moments approach to the electronic energy density of solids he has ...
https://en.wikipedia.org/wiki/Frank_Hawthorne
Polar organic chemical integrative samplerPolar organic chemical integrative sampler
The kinetics are characterized by an initial integrative phase, followed by an equilibrium partitioning phase. During the ... The sampling rate of POCIS can vary with changes in the water flow, turbulence, temperature, and the buildup of solids on the ... have been able to provide a time-integrated sample of water contamination with low detection limits and in situ extraction of ... Based on current results, the POCIS sampler remains in a linear phase for at least 30 days, and has been observed up to 56 days ...
https://en.wikipedia.org/wiki/Polar_organic_chemical_integrative_sampler
Journey of Apollo 15 to the MoonJourney of Apollo 15 to the Moon
One of the few problems encountered during the launch phase came at the separation of the first and second stages. Solid-fuel ... and extraction. The lunar module sat below the command and service module, head-to-tail. As such, it was required for the CSM ... During the launch phase of the flight, Scott sat in the left-hand seat of the CSM, Worden in the center seat, and Irwin in the ...
https://en.wikipedia.org/wiki/Journey_of_Apollo_15_to_the_Moon
KDE Software Compilation 4KDE Software Compilation 4
Solid is the hardware API in KDE 4. It functions similarly to Phonon as it does not manage hardware on its own but makes ... The KDE 4.2 release "marks the end of the testing phase by being the first release ready for everyone - instead of just ... "The Road to KDE 4: Strigi and File Information Extraction". Dot.kde.org. 11 April 2007. Retrieved 15 August 2010. "KDE Commit- ... a device integration framework called Solid and a new style guide and default icon set called Oxygen. It also included a new, ...
https://en.wikipedia.org/wiki/KDE_Software_Compilation_4
NASA Institute for Advanced ConceptsNASA Institute for Advanced Concepts
NIAC 2015 Phase I and Phase II Selections May 7, 2015 (retrieved 28 Oct 2015). NASA, NIAC 2016 Phase I and Phase II Selections ... Solid State Air Purification System Hoyt, Robert: NanoTHOR: Low-Cost Launch of Nanosatellites to Deep Space Hoyt, Robert: ... Ultra Low-Energy Lunar Water Extraction Robert Moses: Advanced Aerocapture System for Enabling Faster-Larger Planetary Science ... NIAC 2018 Phase I and Phase II Selections Apr 30, 2018 (retrieved 30 Jun 2018). "NIAC 2019 Phase I and Phase II Selections". ...
https://en.wikipedia.org/wiki/NASA_Institute_for_Advanced_Concepts
NASICONNASICON
Lithium NASICONs are promising materials to be used as solid electrolytes in all-solid-state lithium-ion batteries. The most ... In both LATP and LAGP, non-conductive secondary phases are expected for larger aluminium content (x > 0.5 - 0.6). LAGP is more ... "Importance of Crystallographic Sites on Sodium-Ion Extraction from NASICON-Structured Cathodes for Sodium-Ion Batteries". ACS ... Knauth, P. (2009). "Inorganic solid Li ion conductors: An overview". Solid State Ionics. 180 (14-16): 911-916. doi:10.1016/j. ...
https://en.wikipedia.org/wiki/NASICON
DryingDrying
... passed to the gas phase directly from the solid phase, below the melting point of the solvent. It is increasingly applied to ... In contrast, the mechanical extraction of the solvent, e.g., water, by filtration or centrifugation, is not considered "drying ... Drying is a mass transfer process consisting of the removal of water or another solvent by evaporation from a solid, semi-solid ... the solids heat up and the higher temperatures speed up diffusion of water from the interior of the solid to the surface. ...
https://en.wikipedia.org/wiki/Drying
Actinide chemistryActinide chemistry
It is known that the presence of a fine solid can stabilize an emulsion. Emulsions are often referred to as third phases in the ... The plutonium passes into the aqueous phase. The uranium is stripped from the kerosene solution by back-extraction into nitric ... This extraction is of the nitrate salts and is classed as being of a solvation mechanism. For example, the extraction of ... superconductor types of conductivity phase transitions; solid electrolyte molecular engines; and miniaturized molecular engines ...
https://en.wikipedia.org/wiki/Actinide_chemistry
GlaucomaGlaucoma
More compounds in this class are being investigated in phase 2 and phase 3 trials. A 2013 Cochrane Systematic Review compared ... For people with chronic closed-angle glaucoma, lens extraction can relieve the block created by the pupil and help regulate the ... that the Eye be grown more solid and hard, then naturally it should be...". Angle-closure glaucoma was treated with cataract ... Ong AY, Ng SM, Vedula SS, Friedman DS (March 2021). "Lens extraction for chronic angle-closure glaucoma". The Cochrane Database ...
https://en.wikipedia.org/wiki/Glaucoma
Oil shale in ChinaOil shale in China
The extraction of oil shale in China began in 1926 under the Japanese rule. The commercial-scale production of shale oil began ... It will use solid heat carrier technology. Maoming oil shale industry was developed from the 1960s to the 1990s by Maoming ... The processor is in the cold testing phase. The cost of shale oil production in Fushun is US$18.46 per barrel (1,500 yuan per ... Several other coal and oil companies have expanded their activities into oil shale extraction. As of 2011[update], there were ...
https://en.wikipedia.org/wiki/Oil_shale_in_China
4D scanning transmission electron microscopy4D scanning transmission electron microscopy
... is used with ptychography to create higher contrast phase images. The placement of a phase plate with zones of 0 and π/2 phase ... Solid State Mater. Sci. 20 (2016) 240-246]". Current Opinion in Solid State and Materials Science. 21 (4): 219. Bibcode: ... New Ways of Information Extraction and Display". Microscopy and Microanalysis. 14 (S2): 70-71. Bibcode:2008MiMic..14S..70S. doi ... The technique has applications in visual diffraction imaging, phase orientation and strain mapping, phase contrast analysis, ...
https://en.wikipedia.org/wiki/4D_scanning_transmission_electron_microscopy
Pasta processingPasta processing
For the first phase of the finish drying, product goes into a dryer with multi rows of hot water circulation plates. This phase ... For egg noodles, eggs are added in the form of fresh eggs, frozen eggs, dry eggs, egg yolks or dry egg solids. If eggs are ... This unit has four areas which periods of intense moisture extraction alternately followed by periods of rest occur at eight ... This stage consists of two phases: in the first phase the product is exposed to high temperatures and humidity and in the ...
https://en.wikipedia.org/wiki/Pasta_processing
Fractional crystallization (chemistry)Fractional crystallization (chemistry)
Fractional crystallization can be used to separate solid-solid mixtures. An example of this is separating KNO3 and KClO3. Cold ... Phase transitions, Methods of crystal growth, All stub articles, Physical chemistry stubs, Materials science stubs). ... Water Extraction Fractional crystallization (geology) Fractional freezing Laser-heated pedestal growth Pumpable ice technology ...
https://en.wikipedia.org/wiki/Fractional_crystallization_(chemistry)
Solid Phase Extraction & QuEChERSSolid Phase Extraction & QuEChERS
... and materials for solid phase extraction (SPE) products including cartridges, glass tubes, 96-well plates, QuEChERS tubes ( ... Solid Phase Extraction (SPE). Solid phase extraction (SPE) is a technique used for rapid, selective sample preparation and ... Brochure: Solid Phase Extraction Products. Brochure: Supel™ QuE QuEChERS. Brochure: HybridSPE® Phospholipid Removal Technology ... Solid Phase Extraction (SPE) is a technique designed for rapid and selective sample preparation and purification, prior to ...
https://www.sigmaaldrich.com/VN/en/products/analytical-chemistry/analytical-sample-preparation/spe-and-quechers
CDS Empore Oil and Grease Extraction Disks:Solid Phase Extraction:SPE Disks | Fisher ScientificCDS Empore Oil and Grease Extraction Disks:Solid Phase Extraction:SPE Disks | Fisher Scientific
Oil and Grease Extraction Disks at Fishersci.com ... CDS Empore Oil and Grease Extraction Disks Reduce extraction ... Formerly 3M™ Empore™ O&G Solid Phase Extraction Disks (SPE): 2270 and 2370. Reduce extraction times to an average of eight ... Provide up to 90% solvent reduction, excellent processing speed, and contamination-free extractions with accurate and ...
https://www.fishersci.com/shop/products/empore-oil-grease-extraction-disks-2/p-7162241
Application of Colorimetric Solid Phase Extraction (C-SPE) to Monitoring Nickel(II) and Lead(II) in Spacecraft Water SuppliesApplication of Colorimetric Solid Phase Extraction (C-SPE) to Monitoring Nickel(II) and Lead(II) in Spacecraft Water Supplies
Building on our previous advances using Colorimetric Solid Phase Extraction (C-SPE) as a biocide monitoring technique [ ... Application of Colorimetric Solid Phase Extraction (C-SPE) to Monitoring Nickel(II) and Lead(II) in Spacecraft Water Supplies ... Citation: Dias, N., Gazda, D., Fritz, J., Porter, M. et al., "Application of Colorimetric Solid Phase Extraction (C-SPE) to ... Building on our previous advances using Colorimetric Solid Phase Extraction (C-SPE) as a biocide monitoring technique [1, 2], ...
https://www.sae.org/publications/technical-papers/content/2004-01-2539/
Non-aqueous bonding of leuprorelin to ochratoxin A for peptide-based solid-phase extraction - Chemical Communications (RSC...Non-aqueous bonding of leuprorelin to ochratoxin A for peptide-based solid-phase extraction - Chemical Communications (RSC...
Non-aqueous bonding of leuprorelin to ochratoxin A for peptide-based solid-phase extraction N. Yamato, N. Kumagai, M. Okahira, ... Non-aqueous bonding of leuprorelin to ochratoxin A for peptide-based solid-phase extraction† ... This work presents the potential of peptide-mycotoxin interactions for durable non-aqueous extraction. ... and it was extended to the extraction of OTA from the heavily fatty matrices of coffee, achieving 95% recovery with improved ...
https://pubs.rsc.org/en/content/articlelanding/2022/CC/D2CC04430G
SPE multi 96-well plates | Solid phase extraction (SPE) | Chromatography | MACHEREY-NAGEL
This website uses cookies, which are necessary for the technical operation of the website and are always set. Other cookies, which increase the comfort when using this website, are used for direct advertising or to facilitate interaction with other websites and social networks, are only set with your consent ...
https://www.mn-net.com/us/chromatography/solid-phase-extraction-spe/spe-multi-96-well-plates/?p=1
Are You Optimizing Your Solid-Phase Extraction? (Part 2)Are You Optimizing Your Solid-Phase Extraction? (Part 2)
I have dedicated this issue to answering the questions that we posed regarding the solid-phase extraction of propranolol from a ... I have dedicated this issue to answering the questions that we posed regarding the solid-phase extraction of propranolol from a ... Are You Optimizing Your Solid-Phase Extraction? (Part 2). .social-ris-container { display: flex; justify-content: space-between ... the last instalment I have dedicated this issue to answering the questions that we posed regarding the solid-phase extraction ...
https://www.chromatographyonline.com/view/are-you-optimizing-your-solid-phase-extraction-part-2-0
Quantitation of Quetiapine in Human Blood by Solid Phase Extraction and High-Performance Liquid Chromatography | American...Quantitation of Quetiapine in Human Blood by Solid Phase Extraction and High-Performance Liquid Chromatography | American...
Quantitation of Quetiapine in Human Blood by Solid Phase Extraction and High-Performance Liquid Chromatography. Presenting ...
https://www.aafs.org/research/quantitation-quetiapine-human-blood-solid-phase-extraction-and-high-performance-liquid
Online solid-phase extraction liquid chromatography-mass spectrometry of hair cortisol using a surrogate analyte | Masaryk...Online solid-phase extraction liquid chromatography-mass spectrometry of hair cortisol using a surrogate analyte | Masaryk...
Online solid-phase extraction liquid chromatography-mass spectrometry of hair cortisol using a surrogate analyte. Authors. ... Online solid-phase extraction liquid chromatography-mass spectrometry of hair cortisol using a surrogate analyte ...
https://www.muni.cz/en/research/publications/1449218
Solid-Phase Extraction | Analytics and Sample Preparation | MilliporeSigma
... columns use strong but reversible interactions between the analyte and the stationary phase to ensure reliable, rapid solid- ... The goal of solid-phase extraction is the selective isolation of target analytes from a complex sample or much larger sample ... As solid-phase extraction works on the principle of liquid chromatography, MilliporeSigmas LiChrolut® columns use strong but ... Under these conditions, the analyte is enriched as a narrow zone on the stationary phase. Subsequent to a washing step, which ...
https://www.emdmillipore.com/US/en/products/analytics-sample-prep/chromatography-for-analysis/sample-preparation-for-chromatography/solid-phase-extraction/Ovab.qB.yO8AAAE_dux3.Lxi,nav
Determination of 74 new psychoactive substances in serum using automated in-line solid-phase extraction-liquid chromatography...Determination of 74 new psychoactive substances in serum using automated in-line solid-phase extraction-liquid chromatography...
A detailed description is given of the development and validation of a fully automated in-line solid-phase extraction-liquid ... Determination of 74 new psychoactive substances in serum using automated in-line solid-phase extraction-liquid chromatography- ... Determination of 74 new psychoactive substances in serum using automated in-line solid-phase extraction-liquid chromatography- ... formic acid as mobile phases. The chromatographic run time amounts to 9.3 min (including re-equilibration). The total cycle ...
https://kups.ub.uni-koeln.de/21559/
Development and validation of a bioanalytical method using automated solid-phase extraction and LC-UV for the simultaneous...Development and validation of a bioanalytical method using automated solid-phase extraction and LC-UV for the simultaneous...
Development and validation of a bioanalytical method using automated solid-phase extraction and LC-UV for the simultaneous ... Development and validation of a bioanalytical method using automated solid-phase extraction and LC-UV for the simultaneous ... Ambulatory induction phase treatment of cryptococcal meningitis in HIV integrated primary care clinics, Yangon, Myanmar ...
https://www.tropmedres.ac/publications/30242
Solid-phase extraction apparatusSolid-phase extraction apparatus
Solid Phase ExtractionSolid Phase Extraction
solid phase extraction methodsolid phase extraction method
Solid-Phase Extraction Solid Phase Extraction (SPE). Orochem synthesizes a full range of polymer-based, solid phase extraction ... Solid phase extraction (SPE) is an extraction method that uses a solid phase and a liquid phase to isolate one, or one type, of ... Solid Phase Extraction (SPE) is an extraction method that uses a solid phase and a liquid phase to isolate one, or one type, of ... The solid phase extraction is the basis of the Synergy Plant DNA Extraction Kit. Solid-phase extraction differs from liquid- ...
http://hotelelpinchedeoro.com/lithium/rpa/eboost/654037463ae9fca0503227e4b1488105e67f
Development and validation of an automated solid-phase extraction and liquid chromatographic method for determination of...
Development and validation of an automated solid-phase extraction and liquid chromatographic method for determination of ... Development and validation of an automated solid-phase extraction and liquid chromatographic method for determination of ... Ambulatory induction phase treatment of cryptococcal meningitis in HIV integrated primary care clinics, Yangon, Myanmar ... Phase 3 Efficacy Analysis of a Typhoid Conjugate Vaccine Trial in Nepal ...
https://www.tropicalmedicine.ox.ac.uk/publications/22914
CNe - Cyanopropyl - Solid Phase ExtractionCNe - Cyanopropyl - Solid Phase Extraction
CNe Cyanopropyl (endcapped) 40μm irregularly-shaped silica. 60 Angstrom mean porosity. The primary retention mechanism is very weakly non-polar and is used with aqueous sample matrices.
https://solidphaseextraction.appliedseparations.com/cne-cyanopropyl/
Solid Phase Extraction from AgilentSolid Phase Extraction from Agilent
... of silica and polymeric Solid Phase Extraction products in a variety of sorbents from C18 to ion exchange and mixed-mode phases ... Solid Phase Extraction from Agilent. Agilent Technologies provide world beating range of silica and polymeric Solid Phase ... Extraction products in a variety of sorbents from C18 to ion exchange and mixed-mode phases. Available in both tube and well ...
https://www.crawfordscientific.com/products/sample-preparation/solid-phase-extraction-spe/agilent-technologies?p=5
Fundamentals of Solid Phase ExtractionFundamentals of Solid Phase Extraction
... (SPE) are explained using drugs of abuse as an example for analyte functionalities. ... Comparisons are shown for liquid-liquid extraction and SPE. Where are the advantages using SPE and when to use which SPE ... Fundamentals are explained showing different extraction methods and how to adopt them for your analytes. Troubleshooting for ... Step-by-step guide to using solid phase extraction. *How to troubleshoot solid phase extraction. ...
https://metrolab.blog/fundamentals-of-solid-phase-extraction/
SPE (SOLID PHASE EXTRACTION) - Teknolab
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https://info.teknolab.no/produkter/kromatografi/spe/
Monodisperse Solid Phase Extraction Sorbents
Our solid phase extraction (SPE) sorbents are specialty monodisperse microspheres with good chemical stability, broad pH range ... Nucleic Acid Extraction *Nucleic Acid Purification Kits *One-step DNA Isolation Kits ...
https://www.amerigoscientific.com/monodisperse-solid-phase-extraction-sorbents.html
Quantification of Urinary Mono-hydroxylated Metabolites of Polycyclic Aromatic Hydrocarbons by on-line Solid Phase Extraction...Quantification of Urinary Mono-hydroxylated Metabolites of Polycyclic Aromatic Hydrocarbons by on-line Solid Phase Extraction...
We developed an on-line solid phase extraction coupled to isotope dilution-high performance liquid chromatography-tandem mass ... Quantification of Urinary Mono-hydroxylated Metabolites of Polycyclic Aromatic Hydrocarbons by on-line Solid Phase Extraction- ... Quantification of Urinary Mono-hydroxylated Metabolites of Polycyclic Aromatic Hydrocarbons by on-line Solid Phase Extraction- ... Quantification of Urinary Mono-hydroxylated Metabolites of Polycyclic Aromatic Hydrocarbons by on-line Solid Phase Extraction- ...
https://stacks.cdc.gov/view/cdc/47738
solid phase extraction spe columns Tenders in Biharsolid phase extraction spe columns Tenders in Bihar
Search solid phase extraction spe columns Tenders from Bihar State. View Tenders published by Government of Bihar for solid ... Find latest solid phase extraction spe columns Tenders in Bihar. ...
http://www.tendersinandhrapradesh.com/SearchTender?Keyword=solid+phase+extraction+spe+columns
Solid Phase ExtractionSolid Phase Extraction
... Product Lines * Autosampler Vials & Closures * All Autosampler Vials & Closures ... QuEChERS Packets, 4g MgSO4, 1g NaCl, 1g TSCD, .5g DHS, 50-pk QuEChERS Premixed Extraction Salts are suitable for various ...
https://www.ibisscientific.com/sample-preparation/solid-phase-extraction/
Quantification of 2,5-dimethyl-4-hydroxy-3(2H)-furanone using solid-phase extraction and direct microvial insert thermal...
... furanone using solid-phase extraction and direct microvial insert thermal desorption gas chromatography-mass spectrometry. ... A GC-MS method for the determination of furaneol in fruit juice was developed using Lichrolut-EN solid-phase extraction (SPE) ... Quantification of 2,5-dimethyl-4-hydroxy-3(2H)-furanone using solid-phase extraction and direct microvial insert thermal ... Quantification of 2,5-dimethyl-4-hydroxy-3(2H)-furanone using solid-phase extraction and direct microvial insert thermal ...
https://emt.oregonstate.edu/biblio/quantification-25-dimethyl-4-hydroxy-32h-furanone-using-solid-phase-extraction-and-direct
Solid Phase Extraction Analytical Techniques - Jordi Labs - Laboratory TestingSolid Phase Extraction Analytical Techniques - Jordi Labs - Laboratory Testing
Solid Phase Extraction analytical techniques from Jordi Labs, an analytical chemistry lab testing company. ...
https://jordilabs.com/lab-testing/technique/spe/
PuriTest Alumina N Solid Phase Extraction (SPE) Column 200mg/3mLPuriTest Alumina N Solid Phase Extraction (SPE) Column 200mg/3mL
Meizheng supplies quality PuriTest Alumina N Solid Phase Extraction (SPE) Column with factory price and ship all over the world ... Solid phase extraction (SPE) is one of the most used techniques in sample preparation. It is replacing the conventional time- ... Home,Industries,Milk Test Kits,Pre-treatment,PuriTest Alumina N Solid Phase Extraction (SPE) Column 200mg/3mL ... PuriTest Alumina N Solid Phase Extraction (SPE) Column 200mg/3mL. Add your review ...
https://mzfoodtest.com/product/puritest-alumina-n-solid-phase-extraction-spe-column-200mg-3ml/
Solid Phase Extraction with Acid Dissociation (SPEAD) Method For Mitigation of Drug Interference
Solid Phase with Extraction Acid Dissociation (SPEAD) is a plate-based method for reducing drug interference in the ADA assay. ... Solid Phase Extraction with Acid Dissociation (SPEAD) Method For Mitigation of Drug Interference ...
https://www.medicalbiochemist.com/2021/12/SPEAD-Drug-Interference-ADA.html
IMSEAR at SEARO: DETERMINATION OF BENZODIAZEPINE IN SERUM BY THE HIGH-PERFORMANCE LIQUID CHROMATOGRAPHIC METHOD WITH SOLID...
... with solid phase extraction (SPE). Quantification was performed with gradient elution of a C8 reversed- phase column, with an ... DETERMINATION OF BENZODIAZEPINE IN SERUM BY THE HIGH-PERFORMANCE LIQUID CHROMATOGRAPHIC METHOD WITH SOLID PHASE EXTRACTION. ...
https://imsear.searo.who.int/handle/123456789/130626?locale=zh_TW
ChromatographyHPLCAnalytesWastewaterSupercritical Fluid ExtrSilicaAdsorbentHeadspaceSeparationNucleic acidPreparationSorbentsLiquidPurificationDispersiveClassical solid-phase extrCompoundsAnalytical ChemistrySelectiveSample pretreatmentSolventAdsorbentsQuEChERSAdsorptionApparatusMetabolitesMethodIsolationBiological samplesAcetonitrileMeOHThroughputMethodsAnalysisSolventsDisksStationary phaseProductsSamplesProcedureColumnNickelProcessPrinciplesIons
Chromatography14
  • As solid-phase extraction works on the principle of liquid chromatography, MilliporeSigma's LiChrolut® columns use strong but reversible interactions between the analyte and surface of the stationary. (emdmillipore.com)
  • A detailed description is given of the development and validation of a fully automated in-line solid-phase extraction-liquid chromatography-tandem mass spectrometry (SPE-LC-MS/MS) method capable of detecting 90 central-stimulating new psychoactive substances (NPS) and 5 conventional amphetamine-type stimulants (amphetamine, 3,4-methylenedioxy-methamphetamine (MDMA), 3,4-methylenedioxy-amphetamine (MDA), 3,4-methylenedioxy-N-ethyl-amphetamine (MDEA), methamphetamine) in serum. (uni-koeln.de)
  • Solid-phase extraction (SPE) is a highly selective mode of sample preparation, akin to the familiar principles of column chromatography. (hotelelpinchedeoro.com)
  • dem solid-phase extraction (SPE) method and an online SPE method that use liquid chromatography/mass spectrometry for the analysis of 23 and 35 antibiotics, respectively, as used in several water-quality surveys conducted since 1999. (hotelelpinchedeoro.com)
  • Quantification of 2,5-dimethyl-4-hydroxy-3(2H)-furanone using solid-phase extraction and direct microvial insert thermal desorption gas chromatography-mass spectrometry. (oregonstate.edu)
  • SPE, utilizing the same type of stationary phases as used in liquid chromatography columns, are practiced in different mechanisms including normal phase, reversed phase, ion-exchange, affinity chromatography and mixed-mode in the fields of agricultural and food, bio-analytical, environmental, and forensic applications. (mzfoodtest.com)
  • In this paper, the determination of six frequently used benzodiazepines and metabolites: flunitrazepam, oxazepam, alprazolam, chlordiazepoxide, diazepam and desmethyldiazepam in serum was developed by high-performance liquid chromatography (HPLC) with solid phase extraction (SPE). (who.int)
  • Phosalone, malathion and diazinon were analyzed in corn oil using solid phase extraction (SPE) with lanthanum silicate as a new solid sorbent followed by gas chromatography with nitrogen phosphorus detection (GC-NPD). (ac.ir)
  • The composition of volatiles emitted by neem seed ( Azadirachta indica L.) and its cake obtained after extraction of oil was analyzed by headspace solid-phase micro extraction (HS-SPME) combined with gas chromatography and gas chromatography- mass spectrometry (GC-MS). Major differences were found in the volatile composition of seed and cake. (upt.ro)
  • So in this work, p(HEMAPA) monolithic columns were developed as a novel kind of solid-phase extraction adsorbents, as well as p(HEMAPA) solid-phase extraction (SPE) adsorbent was coupled with high-performance liquid chromatography (HPLC) (p(HEMAPA-HPLC) for the determination of benzo[a]pyrene (BaP) on-line mode. (hacettepe.edu.tr)
  • In summary, the method used solid-phase extraction followed by liquid chromatography coupled to tandem mass spectrometry. (cdc.gov)
  • Serum levels of FT 4 during pregnancy should be measured with online solid phase extraction-liquid chromatography, or tandem mass spectrometry on serum dialysate or ultrafiltrate. (medscape.com)
  • Determination of alachlor and its metabolites in rat plasma and urine using solid phase extraction and liquid chromatography/electrospray ionization-mass spectrometry. (cdc.gov)
  • Most of lipids in co-extractives were removed by liquid-liquid extraction and gel permeation chromatography. (montclair.edu)
HPLC4
  • The individual recoveries of PAHs following the microwave-assisted L-L extraction and SPE with silica were assessed using HPLC-FD with satisfactory results. (pucv.cl)
  • After p(HEMAPA-HPLC) para- meters including the injection volume, flow rate, and the sample volume had been optimized in detail, BaP separation procedures on the p(HEMAPA-HPLC) containing mobile phase, different amounts of BaP, and reusability were perfor- med. (hacettepe.edu.tr)
  • The experimental results indi- cated that p(HEMAPA-HPLC) allowed for one-step BaPs extraction, clean-up and analytical determination under the optimal conditions. (hacettepe.edu.tr)
  • Cromatografie MACHEREY-NAGEL - HPLC - GC - TLC - SPE (Solid Phase Extraction) - NUCLEODUR - NUCLEOSIL - CHROMABOND - CHROMAFIL - ALUGRAM. (adis-international.ro)
Analytes5
  • C-SPE is a sorption-spectrophotometric platform based on the extraction of analytes onto a membrane impregnated with a colorimetric reagent that are then quantified on the surface of the membrane using a diffuse reflectance spectrophotometer. (sae.org)
  • The goal of solid-phase extraction is the selective isolation of target analytes from a complex sample or much larger sample volume prior to chromatographic analysis (e.g. (emdmillipore.com)
  • Solid Phase Extraction [video, running time 29 minutes 2 seconds] \\europa\839.02\training\Solid Phase Extraction (29.02 minutes).mp4 Lane C. Before a solid sample can be processed by SPE, it must first be extracted by soxhlet extraction, pressurized fluid extraction, or other method, to produce a solution that contains the analytes. (hotelelpinchedeoro.com)
  • Fundamentals are explained showing different extraction methods and how to adopt them for your analytes. (metrolab.blog)
  • He CY, Long YY, Pan JL, Li K, Liu F. Application of molecularly imprinted polymers to solid-phase extraction of analytes from real samples. (innovareacademics.in)
Wastewater1
  • A solid-phase extraction method, based on the adsorption onto Diaion HP-20 resin, was developed for simultaneous spectrophotometric determination of Lanaset Blue 2R and Lanaset Yellow 28 dyes which are most together hazardous textile dyes in wastewater. (erciyes.edu.tr)
Supercritical Fluid Extr1
  • Watch this video to see how the Nexera UC Supercritical Fluid Extraction/Chromatograph System can improve your analytical workflow by utilizing a completely new separation technology. (selectscience.net)
Silica5
  • Reversed phase SPE sorbents can be either polymeric or silica based. (hotelelpinchedeoro.com)
  • Agilent Technologies provide world beating range of silica and polymeric Solid Phase Extraction products in a variety of sorbents from C18 to ion exchange and mixed-mode phases. (crawfordscientific.com)
  • The effectiveness of removing these interferences using solid phase extraction (silica, C18 and graphitized carbon black) was examined. (pucv.cl)
  • Solid phase extraction with silica was the most effective method for the removal of pigments and tocopherol and allowed for the detection of PAHs in edible oils using fluorescence spectroscopy. (pucv.cl)
  • For solid phase extraction cartridge based on silica gel, the capacity of the column is generally 1 ≤ 5 mg/100 mg. (specartridge.com)
Adsorbent4
  • Graphite oxide was synthesized and used as a solid-phase adsorbent for Cu(II) and Pb(II) in various samples. (ebyu.edu.tr)
  • This study was done to evaluate a new technique to determine the presence of methamphetamine in the hair using nano bentonite-based adsorbent as the filler of extraction column. (edu.iq)
  • The common solid-phase extraction cartridge is mainly used as a needle tube type device with polyethylene as a material, and two pieces of a plug piece with the material of polypropylene or glass fiber are arranged in the device, and a certain amount of chromatographic adsorbent (filler) is filled in the middle of the two plug sheets. (specartridge.com)
  • The upper end of the solid-phase extraction column is open, the lower end is a liquid outlet, and the liquid is discharged from the outlet after passing through the adsorbent. (specartridge.com)
Headspace3
  • 6. A combined headspace solid phase extraction-dispersive liquidliquid microextraction method was developed for the extraction of residual solvents (dichloromethane, chloroform, methanol, ethanol, acetone, 2-propanol, 1-butanol, tetrahydrofuran, and pyridine) from herbal laxative medicines. (hotelelpinchedeoro.com)
  • Headspace Solid Phase Micro Extraction and GC/MS Analysis of the Volatile Components in Seed and Cake of Azadirachta indica A. juss. (upt.ro)
  • The recent acquisition of the Gerstel Multipurpose Sampler has given it an entire new lease of life, allowing us to perform sample preparation and automatic injection by headspace analysis, Solid Phase Micro Extraction (SPME) and conventional liquid injection. (drchrispook.com)
Separation6
  • SPE is most often used to remove interfering compounds from a sample, In principle, the solid-phase extraction for nucleic acid exhibits efficient phase separation, low pollution risk, and small sample demand, compared to the conventional liquid-phase Eur. (hotelelpinchedeoro.com)
  • Chromatographic separation is achieved using a reversed phase column with 5 mM ammonium acetate buffer at pH 9.2 (mobile phase A) and 5/95% 100 mM ammonium acetate buffer/acetonitrile (mobile phase B). The eluent from the column is ionized using an APCI interface to generate and transmit positive ions into the mass spectrometer. (cdc.gov)
  • This review represents the recent advances of solid phase extraction from different mode of separation which are the most commonly used in recent days such as molecular imprinting solid phase extraction (MISPE), magnetic solid phase extraction (MSPE) and matrix solid phase dispersion (MSPD). (innovareacademics.in)
  • A New and Efficient Method for the Adsorption and Separation of Arsenic Metal Ion from Mining Waste Waters of Zarshouran Gold Mine by Magnetic Solid-Phase Extraction with Modified Magnetic Nanoparticles', International Journal of Nanoscience and Nanotechnology , 9(3), pp. 121-126. (ijnnonline.net)
  • It is mainly used for separating all kinds of suspension difficult to be separated, especially suitable for separation of solid-liquid suspension with light concentration, heavy viscosity, fine particles and very small differential gravity of the two phases. (lnszjx.com)
  • The high speed tubular centrifuge is mainly used in liquid-solid separation, liquid-liquid-solid separation in bio-pharmacy, beverage, chemical industry. (lnszjx.com)
Nucleic acid1
  • Metagenomic analysis of viral nucleic acid extraction methods in respiratory clinical samples. (cdc.gov)
Preparation8
  • Solid Phase Extraction (SPE) is a technique designed for rapid and selective sample preparation and purification, prior to chromatographic analysis. (sigmaaldrich.com)
  • The phase chemistry selection allows users to screen for the retention and selectivity required to achieve sample preparation objectives. (sigmaaldrich.com)
  • DPX ® tips provide an INTip solution for complete sample preparation that can be easily automated to achieve extraction in seconds. (sigmaaldrich.com)
  • Solid-phase extraction (SPE) is a sample preparation technique by which compounds that are dissolved or suspended in a liquid matrix are extracted according to their physical and chemical properties. (hotelelpinchedeoro.com)
  • Solid Phase Extraction Solid Phase Extraction is sample Preparation Method used for isolation, enrichment and purification of components from aqueous solutions depending upon their physical and chemical properties [24]. (hotelelpinchedeoro.com)
  • Solid phase extraction (SPE) is one of the most used techniques in sample preparation. (mzfoodtest.com)
  • The Meizheng family of solid-phase extraction (SPE) products are designed to simplify and improve your sample preparation by combining the right sorbent chemistry, device format and methodology. (mzfoodtest.com)
  • QuEChERS (Quick-Easy-Cheap-Effective-Rugged-Safe) sample preparation approach involves liquid-liquid partitioning using acetonitrile and purifying the extract using dispersive solid-phase extraction (d-SPE). (generon-food-safety.com)
Sorbents3
  • Our solid phase extraction (SPE) sorbents are specialty monodisperse microspheres with good chemical stability, broad pH range, and optimized surface functional groups. (amerigoscientific.com)
  • Hydrolyzed samples are passed through solid phase extraction (SPE) sorbents. (cdc.gov)
  • The wide range of the technique applications is possible due to introducing various modifications based on the use of different extraction solvent and salt formulation and buffer additions for salting-out partitioning step and the application of various d-SPE sorbents for clean-up step. (generon-food-safety.com)
Liquid5
  • Solid-phase extraction (SPE) is an extractive technique by which compounds that are dissolved or suspended in a liquid mixture are separated from other compounds in the mixture according to their physical and chemical properties.Analytical laboratories use solid phase extraction to concentrate and purify samples for analysis. (hotelelpinchedeoro.com)
  • Comparisons are shown for liquid-liquid extraction and SPE. (metrolab.blog)
  • It is replacing the conventional time-consuming liquid-liquid extraction (LLE) method. (mzfoodtest.com)
  • The potential of microwave-assisted liquid-liquid and solid phase extraction coupled with fluorescence spectroscopy and employing one- to three-way spectral data was assessed in terms of their capacity for the rapid detection of heavy polycyclic aromatic hydrocarbons (PAHs) in olive and sunflower oils. (pucv.cl)
  • The simplest solid phase extraction can be done manually, by attaching a syringe to the upper end of the SPE cartridge and extruding the liquid from the extraction cartridge by squeezing the syringe. (specartridge.com)
Purification2
  • The furaneol can be completely eluted out from the Lichrolut-EN SPE column with 1mL of methanol, which can be directly analyzed on GC-MS using an automated large volume microvial insert thermal desorption technique without further purification and concentration. (oregonstate.edu)
  • Solid Phase Extraction is a method used for extraction, purification of compounds contained in complex matrices and purification of samples in the fields of industry, pharmacy, and toxicology analysis. (innovareacademics.in)
Dispersive1
  • The multitude of available phase chemistries can be packed into an array of hardware formats such as individual cartridges, 96-well plates, and QuEChERS tubes (dispersive SPE), which can be processed using a vacuum manifold and dedicated accessories. (sigmaaldrich.com)
Classical solid-phase extr2
  • Comparison of molecularly imprinted solid-phase extraction (MISPE) with classical solid-phase extraction (SPE) for the detection of benzodiazepines in post-mortem hair samples. (innovareacademics.in)
  • The size of the solid-phase extraction column can be divided into 1 mL,3 mL,6 mL,10 mL,15 mL,20 mL,30 mL,60 mL, and the like based on the volume of space above the classical solid-phase extraction column filler. (specartridge.com)
Compounds2
  • Graphitized carbon black (GCB) is a sorbent that is widely used in solid phase extraction (SPE) to extract polar and non-polar pesticides/compounds from water samples. (hotelelpinchedeoro.com)
  • In this work, a solid phase extraction procedure for the recovery of OMW phenolic compounds recently developed on water solutions was applied and assessed on two different actual site OMWs. (unibo.it)
Analytical Chemistry1
  • Aguilar Arteaga K, Rodriguez JA, Barrado E. Magnetic solids in analytical chemistry: a review. (innovareacademics.in)
Selective1
  • The conditions for leaching of metal contents in solid materials of the batteries were optimized.The effect of parameters influencing the process for achieving to an efficient and selective extraction of Cd, Co and Ni ions from synthetic samples and leach liquor of spent Ni-Cd batteries was investigated. (ac.ir)
Sample pretreatment3
  • Since interactions between the stationary phase and matrix should not occur, it is important to perform appropriate sample pretreatment. (emdmillipore.com)
  • Solid-phase extraction is one of the best sample pretreatment methods, with a series of advantages such as simplicity, low cost, and easy automation. (hotelelpinchedeoro.com)
  • Hawach solid phase extraction cartridges are designed for sample pretreatment to remove or minimize sample matrix and other interferences to "clean up" a sample prior to analysis. (specartridge.com)
Solvent7
  • Important analytical parameters including as pH, amount of sorbent, type and amount of eluting solvent, sample volume, vortex and ultrasonic bath time, matrix ions that effect the developed SiO2-APH-solid phase extraction (SPE) method were investigated and optimum parameters were detected. (yyu.edu.tr)
  • Condition column according to phase: Reversed phase: use methanol, acetonitrile or isopropanol followed by solvent used for sample solution. (thermofisher.com)
  • The solid phase SPE cartridge should be eluted with an appropriate solvent before the sample is extracted to keep the absorbent moist and the target compound or interfering compound can be adsorbed. (specartridge.com)
  • Polar adsorbents for positive phase solid phase extraction, usually eluted with the organic solvent in which the target compound is located. (specartridge.com)
  • In order to keep the adsorbents in the solid phase cartridge moist after activation and before the sample is added, the appropriate solvent should be maintained on the adsorbents after activation treatment. (specartridge.com)
  • 6] Nogueira C.A., Delmas F., New Flowsheet for the Recovery of Cadmium, Cobalt and Nickel from Spent Ni-Cd Batteries by Solvent Extraction , Hydrometallurgy , 52 , p. 267 (1999). (ac.ir)
  • 8] Reddy B.R., Priya D.N., Chloride Leaching and Solvent Extraction of Cadmium, Cobalt and Nickel from Spent Nickel-Cadmium, Batteries Using Cyanex 923 and 272, J. Power Sources , 161 , p. 1428 (2006). (ac.ir)
Adsorbents2
  • Weak polar or non-polar adsorbents used in reverse solid phase extraction usually washed with water-soluble organic solvents, such as methanol, and then washed with water or buffer solvents. (specartridge.com)
  • The adsorbents used for ion exchange solid phase extraction can be eluted with sample solvents when they are used in non-polar organic solvents, and when they are used for samples in active solvents, after leaching with water-soluble organic solvents, they can be eluted with appropriate PH values and aqueous solutions containing certain organic solvents and salt. (specartridge.com)
QuEChERS2
  • QuEChERS Packets, 4g MgSO4, 1g NaCl, 1g TSCD, .5g DHS, 50-pk QuEChERS Premixed Extraction Salts are suitable for various QuEChERS Standards and used in analysis of multi-residual pesticides. (ibisscientific.com)
  • Nowadays the most used protocols are the EN15662 and AOAC2007.1 Qtube QuEChERS kits - are available in practical pouches for the extraction phase and in 15 ml and 2 ml tubes for the clean-up. (generon-food-safety.com)
Adsorption2
  • Considering the integrated adsorption-desorption processes, ENV+ allowed to achieve a) the highest recovery of total phenols when elution was done with acidified ethanol and b) the highest specific recovery of hydroxytyrosol when non-acidified ethanol was used as the desorbing phase. (unibo.it)
  • The capacity of solid phase extraction cartridge refers to the adsorption capacity of solid-phase extraction cartridge packing. (specartridge.com)
Apparatus1
  • Alternatively, a batch sample may be subjected to a solid phase extraction operation using a positive pressure or negative pressure solid phase extraction apparatus. (specartridge.com)
Metabolites1
  • These metabolites underwent extensive phase II metabolism to yield sulfate and glucuronic acid conjugates. (cdc.gov)
Method7
  • Solid phase extraction can be used Solid phase extraction (SPE) methods are based on the 6 steps with an example method as shown below. (hotelelpinchedeoro.com)
  • That is, the proposed LCMS/MS method coupled with MCX-SPE extraction and 50% MeOH extraction method was developed. (hotelelpinchedeoro.com)
  • It is usually used to clean up a sample before using a chromatographic or other analytical method to quantitate the amount of analyte(s) in EPA Method 3535 Solid Phase Extraction. (hotelelpinchedeoro.com)
  • A GC-MS method for the determination of furaneol in fruit juice was developed using Lichrolut-EN solid-phase extraction (SPE) coupled to microvial insert thermal desorption. (oregonstate.edu)
  • Solid Phase with Extraction Acid Dissociation (SPEAD) is a plate-based method for reducing drug interference in the ADA assay. (medicalbiochemist.com)
  • Extraction of DNA, RNA, and protein is the basic method used in molecular biology. (jayhawks.be)
  • In this simple and reliable method, testosterone from the brain and whole blood, and the internal standard, 17α-methyl testosterone, were extracted in 20% acetonitrile-phosphate buffer (pH 2.8), followed by solid phase extraction (SPE). (fujita-hu.ac.jp)
Isolation2
Biological samples1
  • LCFAs and oxylipins were first extracted from biological samples via solid-phase extraction. (spectroscopyonline.com)
Acetonitrile2
  • The extracts were directly injected into an LC MS/MS system, using a biphenyl column and gradient elution with 2 mM ammonium formate/0.1% formic acid and acetonitrile/0.1% formic acid as mobile phases. (uni-koeln.de)
  • Quantification was performed with gradient elution of a C8 reversed- phase column, with an alkaline water-acetonitrile-methanol eluent, free of buffer salts. (who.int)
MeOH1
  • Figure S1) was isolated as a brownish amorphous solid with [α] D − 25 ( c 0.9, MeOH). (biomedcentral.com)
Throughput1
  • Mobile phase options are limited to volatile buffers, and slow MS sampling rates can limit throughput advantages that such next-generation media offer. (chromatographyonline.com)
Methods1
  • Building on our previous advances using Colorimetric Solid Phase Extraction (C-SPE) as a biocide monitoring technique [ 1 , 2 ], we are devising methods for the low level monitoring of nickel(II), lead(II) and other heavy metals. (sae.org)
Analysis3
  • A fully automated on-line solid phase extraction procedure was developed and validated for the analysis of 30 key proteins biomarkers in Gammarus fossarum. (hotelelpinchedeoro.com)
  • Advantages of this procedure are low quantitation limits (0.05-1.0 ng/mL), short extraction time, low consump- tion of organic solvents, and ease of automation and operation of the whole analysis. (hacettepe.edu.tr)
  • Solid phase extraction technology has been widely used in many national standards (GB/T) and industry analysis standards. (specartridge.com)
Solvents1
  • The solvents for the activation of solid phase extraction cartridge are different in different modes. (specartridge.com)
Disks2
  • We offer SPE disks that accommodate rapid organic contaminant extraction, making them ideal for the EPA 500 series, including 525.1 and 508.1. (sigmaaldrich.com)
  • Formerly 3M™ Empore™ O&G Solid Phase Extraction Disks (SPE): 2270 and 2370. (fishersci.com)
Stationary phase1
  • Under these conditions, the analyte is enriched as a narrow zone on the stationary phase. (emdmillipore.com)
Products1
  • Up to 8 and 10 degradation products were detected in the water phase of label 1 and 2, respectively. (europa.eu)
Samples3
  • Extraction of trace level persistent organic pollutants is an important issue in water samples. (hacettepe.edu.tr)
  • With the development of technology and the increase in the number of samples, more and more analytical laboratories began to use automated solid phase extraction, especially multi-channel solid phase extraction to process batch samples. (specartridge.com)
  • Redox potentials and oxygen concentrations measured in the water phase of treated samples were indicative for aerobic conditions during the incubation period. (europa.eu)
Procedure2
Column3
Nickel2
  • Application of Colorimetric Solid Phase Extraction (C-SPE) to Monitoring Nickel(II) and Lead(II) in Spacecraft Water Supplies," SAE Technical Paper 2004-01-2539, 2004, https://doi.org/10.4271/2004-01-2539 . (sae.org)
  • Keep in mind the importance of cadmium, cobalt and nickel ions as environmentally and economically strategic heavy metals, the application of two acidic extractants, named bis(2-diethylhexyl)phosphoric acid (DEHPA) and 2-thenoyltrifluoroacetone (HTTA), was assessed for the extraction-recovery of these ions from leached solution of spent rechargeable Ni-Cd batteries. (ac.ir)
Process2
  • The irradiated target material is then dissolved and purified via two-step process (solid phase extraction) to produce Tc-pertechnetate for further labelling or distribution. (iba-radiopharmasolutions.com)
  • An energy efficient pretreatment process for lignocellulosic biomass using the DYNAJETS cavitating jets will be developed to enable efficient extraction of sugar for conversion to biofuels. (osti.gov)
Principles2
Ions1
  • A Study on the Extraction of Cd(II), Co(II) and Ni(II) Ions by Bis(2-ethylhexyl)phosphoric Acid and 2-Thenoyltrifluoroacetone', Iranian Journal of Chemistry and Chemical Engineering , 30(3), pp. 89-96. (ac.ir)
Beverages | Free Full-Text | Wine Contamination with Ochratoxins: A Review
Beverages | Free Full-Text | Wine Contamination with Ochratoxins: A Review (mdpi.com)
Non-aqueous bonding of leuprorelin to ochratoxin A for peptide-based solid-phase extraction - Chemical Communications (RSC...
Non-aqueous bonding of leuprorelin to ochratoxin A for peptide-based solid-phase extraction - Chemical Communications (RSC... (pubs.rsc.org)
Alphabetical Method Listing - C - NMAM 4th Edition | NIOSH | CDC
Alphabetical Method Listing - C - NMAM 4th Edition | NIOSH | CDC (cdc.gov)
SPE Troubleshooting | Thermo Fisher Scientific - US
SPE Troubleshooting | Thermo Fisher Scientific - US (thermofisher.com)
Plus it
Plus it (biorxiv.org)
Quantitation of Quetiapine in Human Blood by Solid Phase Extraction and High-Performance Liquid Chromatography | American...
Quantitation of Quetiapine in Human Blood by Solid Phase Extraction and High-Performance Liquid Chromatography | American... (aafs.org)
Instituto del Agua - Universidad de Barcelona
Instituto del Agua - Universidad de Barcelona (ub.edu)
NIOSH Bibliography of Communication & Research Products 1999 | NIOSH | CDC
NIOSH Bibliography of Communication & Research Products 1999 | NIOSH | CDC (cdc.gov)
Microplate News, Research
Microplate News, Research (news-medical.net)
MilliporeSigma Supelco SPME Fiber Assembly, Divinylbenzene/Carboxen /Polydimethylsiloxane | Fisher Scientific
MilliporeSigma Supelco SPME Fiber Assembly, Divinylbenzene/Carboxen /Polydimethylsiloxane | Fisher Scientific (fishersci.com)
CDC - Mining - Field Method for the Determination of Insoluble or Total Hex!! - NIOSH
CDC - Mining - Field Method for the Determination of Insoluble or Total Hex!! - NIOSH (cdc.gov)
Robert Shellie - Profiles | University of Tasmania
Robert Shellie - Profiles | University of Tasmania (utas.edu.au)
Thermal Desorption | Food and Beverage Expert Opinion about the Best Lab Products and Latest Techniques - SelectScience
Thermal Desorption | Food and Beverage Expert Opinion about the Best Lab Products and Latest Techniques - SelectScience (selectscience.net)
Continuous biocatalytic synthesis of (R)-2-octanol with integrated product separation - Green Chemistry (RSC Publishing)
Continuous biocatalytic synthesis of (R)-2-octanol with integrated product separation - Green Chemistry (RSC Publishing) (pubs.rsc.org)
Clinical Chemistry and Laboratory Medicine (CCLM) Volume 48 Issue 11
Clinical Chemistry and Laboratory Medicine (CCLM) Volume 48 Issue 11 (degruyter.com)
Tianjin University
Tianjin University (researchgate.net)
Mass spectrometry of short peptides reveals common features of metazoan peptidergic neurons | Nature Ecology & Evolution
Mass spectrometry of short peptides reveals common features of metazoan peptidergic neurons | Nature Ecology & Evolution (nature.com)
Water | Free Full-Text | Effects of Irrigation with Desalinated Seawater and Hydroponic System on Tomato Quality
Water | Free Full-Text | Effects of Irrigation with Desalinated Seawater and Hydroponic System on Tomato Quality (mdpi.com)
Peter Tiselius,
Peter Tiselius, (gu.se)
Mitarbeitende - Eawag
Mitarbeitende - Eawag (eawag.ch)
CHROMABOND C18 ec-SPE columns-MACHEREY-NAGEL | MACHEREY-NAGEL
CHROMABOND C18 ec-SPE columns-MACHEREY-NAGEL | MACHEREY-NAGEL (mn-net.com)
Streamlining Sample Preparation | Clinical Lab Products
Streamlining Sample Preparation | Clinical Lab Products (clpmag.com)
The Synthesis and Characterisations of Porous Thioamide-Sulfonated-Modified Poly (Acrylonitrile-Co-Divinylbenzene-80) as a...
The Synthesis and Characterisations of Porous Thioamide-Sulfonated-Modified Poly (Acrylonitrile-Co-Divinylbenzene-80) as a... (preprints.org)
Preclinical evaluation of [18F]FB-A20FMDV2 as a selective marker for measuring αVβ6 integrin occupancy using positron emission...
Preclinical evaluation of [18F]FB-A20FMDV2 as a selective marker for measuring αVβ6 integrin occupancy using positron emission... (link.springer.com)
Pharmaceuticals | Free Full-Text | Automated GMP-Compliant Production of [68Ga]Ga-DO3A-Tuna-2 for PET Microdosing Studies of...
Pharmaceuticals | Free Full-Text | Automated GMP-Compliant Production of [68Ga]Ga-DO3A-Tuna-2 for PET Microdosing Studies of... (mdpi.com)
Collection rack-HTP SPE accessory-MACHEREY-NAGEL | MACHEREY-NAGEL
Collection rack-HTP SPE accessory-MACHEREY-NAGEL | MACHEREY-NAGEL (mn-net.com)