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AnionsRadionuclide GeneratorsCation Exchange ResinsChromatography, High Pressure LiquidIon Exchange ResinsSilica GelAnion Exchange ResinsChromatography, Ion ExchangeSilicon DioxideAcetonitrilesCrown EthersSpectrophotometry, UltravioletAnion Transport ProteinsPolystyrenesChromatography, LiquidHydrogen-Ion ConcentrationMethanolIndicators and ReagentsAdsorptionOrganic Anion TransportersSilicatesIonsPerchloratesChromatography, GelAcidsOrganic Anion Transporters, Sodium-IndependentChromatographyLimit of DetectionChromatography, Reverse-PhaseSolventsVoltage-Dependent Anion ChannelsChromatography, AffinitySpectrophotometry, AtomicChromatography, Thin LayerRadioisotopesChloridesReproducibility of ResultsStereoisomerismTemperatureMolecular WeightVoltage-Dependent Anion Channel 1SuperoxidesKineticsElectrophoresis, Polyacrylamide GelReference StandardsSpectrometry, Mass, Electrospray IonizationSensitivity and SpecificityTime FactorsBromides4,4'-Diisothiocyanostilbene-2,2'-Disulfonic AcidVoltage-Dependent Anion Channel 2Rabbits4-Acetamido-4'-isothiocyanatostilbene-2,2'-disulfonic Acidp-Aminohippuric AcidBicarbonatesCatharticsSulfatesBiological TransportCell MembraneGuinea PigsCattleSLC4A ProteinsMembrane PotentialsIon ChannelsTooth Preparation, ProsthodonticSulfobromophthaleinChloride ChannelsDelayed-Action PreparationsMolecular Sequence DataProbenecidCalciumIodidesDose-Response Relationship, DrugOrganic Anion Transport Polypeptide CSolubilityPlant PreparationsLiverAdenosine TriphosphateMicroscopy, ElectronAmino Acid SequenceCells, CulturedPotassiumThiocyanatesOxidation-ReductionCationsSodiumRats, Sprague-DawleyMethodsPhosphatesIon ExchangeDogsCell LineDental Cavity PreparationErythrocytesCalixarenesMuscle ContractionElectrophysiologyAmino AcidsMolecular StructureElectric Stimulation
ChromatographyNitrateStrong anion-exchangeSeparationCationsCommon anionsInorganic AnionsFluorideCarbonateAnalyteIodideAnalyticalSodiumWastewaterExchangeDeterminationResinAnalysisColumnMatrixSimpleNitrateOxyhalideSeparatorSample preparationSulfateSensitivityParticlesAnalyticalExchangeSilicaGenerationSystemFormHighSugarInclude
Chromatography19
  • High-Performance Anion-Exchange chromatography with Pulsed Amperometric Detection (HPAE-PAD) is a widely used technique for determination of carbohydrates as it removes the need to modify glycans before analysis and ensures high resolution and sensitivity. (thermofisher.com)
  • HPAE-PAD - High-Performance Anion Exchange chromatography with Pulsed Amperometric Detection - is a technique that was developed specifically for the separation and detection of carbohydrates. (thermofisher.com)
  • High-Performance Anion Exchange (HPAE) chromatography is used to separate analytes that are ionized under high pH conditions, such as carbohydrates (pKas are usually between 12-13). (thermofisher.com)
  • While there are some alternatives to ion chromatography for the analysis of cations (such as Atomic Absorption Spectroscopy, ICP-MS, etc.), ion chromatography is required for the analysis of anions for which there are no other rapid analytical methods. (emdmillipore.com)
  • Srivatsan Mohana Rangan, Rosa Krajmalnik-Brown, and Anca G. Delgado An Ion Chromatography Method for Simultaneous Quantification of Chromate, Arsenate, Selenate, Perchlorate, and Other Inorganic Anions in Environmental Media ENVIRONMENTAL ENGINEERING SCIENCE Volume 38, Number 7, 2021. (elgalabwater.com)
  • Small environmental and academic teaching laboratories specializing in water analysis can benefit from simpler setup and operation and improved quality with a new, compact ion chromatography (IC) system that can bring an advanced level of simplicity to anion and cation analyses of drinking water. (technologynetworks.com)
  • The new Thermo Scientific Dionex Easion ion chromatography system is a user-friendly instrument, designed to yield consistent results and excellent resolution to routine anion and cation analysis of drinking water, while limiting operational costs. (technologynetworks.com)
  • For laboratories who are used to traditional wet chemistry methods with labor-intense workflows and time-consuming maintenance needs, ion analysis of water can be complex, often making this type of analysis challenging," said Tara Tereso, vice president and general manager, ion chromatography and sample preparation, Thermo Fisher Scientific. (technologynetworks.com)
  • The wide variety of equipment, columns, eluent and operational parameters involved makes high performance liquid chromatography (HPLC) method development seem complex. (pharmtech.com)
  • For inorganic anion/cation analysis, ion exchange chromatography is best. (pharmtech.com)
  • Eluents can be delivered by Reagent-Free™ Ion Chromatography (RFIC™) systems using eluent generation cartridges. (imbros.com.au)
  • DBC is dependent on the sample preparation prior to chromatography and the availability of the binding sites at the chromatographic matrix. (biaseparations.com)
  • Online Gas-Free Electrodialytic KOH Eluent Generator for Ion Chromatography, Anal. (ecust.edu.cn)
  • Preparation of a low bleeding polar stationary phase for hydrophilic interaction liquid chromatography, Talanta, 2018, 182, 500-504. (ecust.edu.cn)
  • Fabrication and evaluation of an electrodialytic carbonate eluent generator for ion chromatography, Talanta 2016, 159, 143-147. (ecust.edu.cn)
  • Ion chromatography (IC) is a form of liquid chromatography that is able to measure the concentrations (in parts per billion) of anions such as chloride, fluoride, nitrate, and sulfate, and cations such as ammonium, calcium, magnesium, and sodium. (chromatographyonline.com)
  • For this enrichment and polishing of full AAV capsids, CIMmultus QA, a monolith-based anion exchange chromatography, is widely used. (biaseparations.com)
  • Anion exchange chromatography (AEX) exploits the negative charge on EV surface molecules for binding to the positively charged solid phase. (biaseparations.com)
  • Employing solid phase extraction sample preparation can also reduce harmful compounds introduced into the chromatography system thereby extending the longevity of the analytical column and instrument. (thermofisher.cn)
Nitrate6
  • Nitrate and thiocyanate are polyatomic anions that can disrupt thyroid function by competitively inhibiting iodide uptake, similar to the action of perchlorate. (cdc.gov)
  • Nitrate anion can also form endogenously. (cdc.gov)
  • However, method 218.7 is Cr (VI) specific and does not quantify other regulated analytes present in a sample, such as arsenate As(V), selenate Se(VI) or perchlorate ClO 4 - , nor common anions such as chloride, nitrate and sulphate. (elgalabwater.com)
  • 4) developed an isocratic IC analytical method with suppressed conductivity detection for simultaneous quantification of Cr (VI) and eight other environmentally relevant anions: fluoride, chloride , nitrite, nitrate, sulphate, Se (VI), As (V), and perchlorate. (elgalabwater.com)
  • The resin retained 89% of the initial gold sorption capacity, and 99% of the adsorbed gold was eluted with a modified nitrate eluent. (edu.au)
  • Typical problems caused by the interfering excipients, such as nitrate anions, are eliminated by the analytical setup through the generation of a well-defined azide peak. (news-medical.net)
Strong anion-exchange2
  • This is accomplished through hydroxide-based eluents and a strong anion-exchange stationary phase. (thermofisher.com)
  • Separation on a strong anion exchange column CIMmultus®-EV was used to assess the abundance of different EV populations. (biaseparations.com)
Separation8
  • Again, the separation takes place under strongly alkaline conditions (eluent of 5 mM sodium hydroxide/2 mM sodium acetate) and the analyte is detected by pulsed amperometry. (sigmaaldrich.com)
  • Chromatographic separation is achieved using an IonPac AS16 column with sodium hydroxide as the eluent. (cdc.gov)
  • With the help of a high-pressure pump, the injected sample is passed in the eluent flow over the system of pre-columns and separation columns and the respective components are effectively separated according to their retention times in the ion exchange process. (mpg.de)
  • Preparation of decarboxylic-functionalized weak cation exchanger and application for simultaneous separation of alkali, alkaline earth and transition metals, Talanta, 2016, 153(1): 79-82. (ecust.edu.cn)
  • There is a resurgence of interest in chemical derivatization schemes in separation science, particularly in sample preparation. (chromatographyonline.com)
  • A single-step sample preparation procedure based on mixed-mode solid phase extraction was efficiently combined with essential improvements in mobile phase composition yielding higher efficiency of chromatographic separation and MS-sensitivity. (biomedcentral.com)
  • Using Shenghan leading IC column technology, the separation of anion, cation, cyanide, iodide, sugar and small molecular organic acids can be realized. (instrumar.co)
  • In order to overcome the influence of such ingredients, a transfer solution is used for rinsing an anion pre-concentration column for 6 minutes after pre-concentrating the azide in the column but before the chromatographic separation step. (news-medical.net)
Cations5
  • Our 2-channel IC system enables the simultaneous determination of anions and cations from various sample materials. (mpg.de)
  • SH-WIC5000 is a full-automatic and intelligent water quality on-line IC, which can realize real-time detection of anions and cations in water samples. (instrumar.co)
  • SH-GIC7000 is a full-automatic and intelligent on-line IC for atmosphere, which can detect anions and cations in TSP, PM2.5, PM10 and dustfall to meet the testing requirements of HJ799-2016 and HJ800-2016.The instrument runs continuously for 24 hours and can work continuously for 20 days after one maintenance. (instrumar.co)
  • It can realize the simultaneous detection of anions and cations, and double the work efficiency. (instrumar.co)
  • CIC-D100 ion chromatograph is a classic product of SHINE, which has been accepted by many customers.Based on the latest requirements of users,a newly upgraded CIC-D100 for conventional detection came into being.The new IC not only can detect anions, cations and other polar substances in different matrix samples, but also separate ions with 4 orders of magnitude difference.Compared with the. (instrumar.co)
Common anions1
  • The Thermo Scientific Dionex Easion IC system is designed to streamline processes and minimize operational maintenance and, with its small footprint, allows smaller laboratories to run analyses for methods, such as The Determination of Common Anions in Drinking Water, run by US EPA 300, or similar methods very easily, without compromising results or valuable laboratory space. (technologynetworks.com)
Inorganic Anions1
Fluoride1
  • Neutral sodium fluoride is the most preferred agent due to its effect, easy preparation and storage, low cost, pleasant flavor, as well as lack of ability to stain 12 . (bvsalud.org)
Carbonate2
  • Dionex IonPac columns are IonPac polymeric columns for use with hydroxide, carbonate, and methanesulfonic acid eluents. (imbros.com.au)
  • The novelty of the present procedure is based on the use of diethyl carbonate as a green biobased extraction solvent and air-assisted liquid-liquid microextraction (AALLME) as a sample preparation step. (bvsalud.org)
Analyte1
  • A suppressor connected in front of the detector lowers the background conductivity of the eluent and improves the detection sensitivity of the analyte. (mpg.de)
Iodide1
  • The analysis of anion, cation, cyanide, iodide ,sugar and small molecule organic acid can be realized by combining with conductivity detector and amperometric detector. (instrumar.co)
Analytical5
  • Thus, the IC analysis of environmental aqueous samples containing Cr (VI) and co-occurring anions requires multiple analytical methods with different columns and eluent compositions. (elgalabwater.com)
  • They used a Metrosep A Supp 7 analytical column (250 · 4 mm) and the eluent contained 10.8 mM Na 2 CO 3 and 35% (v/v) gradient grade acetonitrile in deionized water (ELGA PureLab). (elgalabwater.com)
  • This article presents a simple and systematic approach to HPLC method development, beginning with sample preparation and finishing with practical analytical method validation. (pharmtech.com)
  • Fully optimized and validated analytical methods, as well as guidelines for buffer and sample preparation come as part of the PATfix system, allowing users to focus on their specific application. (biaseparations.com)
  • In this method, a transfer solution containing an IC eluent and appropriate organic solvents is used for extraction of the pharmaceutical from the analytical column. (news-medical.net)
Sodium1
Wastewater1
Exchange3
  • The columns' nonporous resins have small anion-exchange microbeads carrying the anion-exchange functional groups. (thermofisher.com)
  • These small anion-exchange microbeads are permanently attached electrostatically to a larger cation-exchange resin particle. (thermofisher.com)
  • After filtration and optional treatment with an adsorbent, the mixture is chromatographically separated over an ion-exchange resin with water as eluent. (justia.com)
Determination1
  • In this study, a sample preparation procedure was developed to preconcentrate copper ions from aqueous samples for determination by flame atomic absorption spectrometry (FAAS) and digital image based colorimetry (DIC) systems. (bvsalud.org)
Resin1
  • A common reaction scheme was employed for most preparations, via treatment of the exhaustively chloromethylated resin substrate with excess amine in dimethylformamide. (edu.au)
Analysis5
  • It is only technique that can provide quantitative analysis of anions at the ppb level. (emdmillipore.com)
  • The water is of particular importance as it is used in multiple aspects of the sample preparation and analysis. (elgalabwater.com)
  • Offering preconfigured kits for analysis, a simple dilution of eluent and suppressant concentrates is all that is required, making the set-up and operation of the system quick and straightforward. (technologynetworks.com)
  • This product adopts high precision DC servo motor Technology advantage: Ultra-miniaturized design Expandable to binary high pressure gradient system It can be expanded to a four-element low-pressure gradient system No mechanical buffer (electronic pressure pulsation suppression) The pump head can be replaced according to demand (analysis/semi-preparation) External control can be carried. (instrumar.co)
  • Solid phase extraction (SPE) is a sample preparation technique often used by chromatographers prior to analysis. (thermofisher.cn)
Column3
  • No. 78348 ) ensures that the sugars are present in dissociated form (as anions) and can therefore be separated in the column using the ion exchanger. (sigmaaldrich.com)
  • The eluent from the column is ionized using an electrospray interface to generate and transmit negative ions into the mass spectrometer. (cdc.gov)
  • The pre-concentration column holds back the azide anions, while the transfer solution composed of 70% methanol and 30% ultrapure water removes the interfering pharmaceutical matrix. (news-medical.net)
Matrix1
  • Because of its protein-rich matrix milk must undergo dialysis before being analyzed, with the Metrohm Inline Sample Preparation. (sigmaaldrich.com)
Simple1
  • Except for simple dilution, no sample preparation is required. (sigmaaldrich.com)
Nitrate3
  • Nitrate and thiocyanate are polyatomic anions that can disrupt thyroid function by competitively inhibiting iodide uptake, similar to the action of perchlorate. (cdc.gov)
  • Nitrate anion can also form endogenously. (cdc.gov)
  • Typical problems caused by the interfering excipients, such as nitrate anions, are eliminated by the analytical setup through the generation of a well-defined azide peak. (news-medical.net)
Oxyhalide1
  • Analytical columns using hydroxide eluent or carbonate eluent can be used for oxyhalide analysis. (thermofisher.com)
Separator1
  • The halide and sulfate anions are separated on the separator column of the IC. (maxlab.asia)
Sample preparation7
  • The analysis of speciated halides and sulfur in complex matrices like petrochemicals and solids is difficult and requires extensive sample preparation with conventional offline methods. (maxlab.asia)
  • Combustion IC enables the determination of individual halides and sulfur by a single analysis while eliminating the complex and time-consuming sample preparation steps of conventional offline digestion/combustion methods, such as Schöniger Flask, Oxygen Bomb, Wickbold-Apparatus, and Microwave-induced combustion. (maxlab.asia)
  • 4. After sample preparation, an aliquot of the absorber solution containing the analytes is injected into an Ion Chromatograph (IC) by means of a sample injection valve. (maxlab.asia)
  • Vials, 15- to 20-mL, for sample preparation. (cdc.gov)
  • Discover what you can do today, starting to use the free compliant-ready platform for sample preparation. (labrulez.com)
  • Simple and Efficient Solutions for Sample Preparation and Analysis, 2. (labrulez.com)
  • We have investigated how influential baking temperature in sample preparation are for uranium secondary ion quantity, uranium hydride generation and particle crystallinity. (go.jp)
Sulfate1
Sensitivity2
  • Hydroxide-selective columns, despite providing better sensitivity than carbonate eluent columns, were not widely adapted due to the lack of appropriate column selectivity and easy contamination during the preparation process for hydroxide eluent. (thermofisher.com)
  • Traditionally, carbonate eluent is used for anion separations because carbonate eluent is easy to prepare without contamination concerns and delivers results that meet the analytical requirement for regulatory standards of inorganic DBPs as in EPA Method 300.1 (Part B). However, the detection sensitivity using carbonate eluent columns is much lower compared to hydroxide eluent columns as described above due to the higher background and therefore lower signal-to-noise ratio. (thermofisher.com)
Particles1
  • however, studies on the preparation and application of fluoroalkylated microsize-controlled particles possessing unique surface wettability such as superoleophilic/superhydrophobic characteristics imparted by fluorine have been very limited except for our recent reports, so far [16] [17]. (scirp.org)
Analytical1
  • In this method, a transfer solution containing an IC eluent and appropriate organic solvents is used for extraction of the pharmaceutical from the analytical column. (news-medical.net)
Exchange1
  • This innovative method, carried out on an anion exchange resin, is easy to set up, cost effective and does not alter compounds of interest in the treated fruit juice. (seprosys.com)
Silica1
  • R F -(VM) n -R F ] can be applied to the preparation of the corresponding oligomer/micro-sized silica particle composites possessing the superoleophi- lic/superhydrophobic property on the composite particle surface, affording a selective removal ability of fluorinated aromatic compounds from aqueous solutions [17]. (scirp.org)
Generation2
  • Electrolytic eluent generation must be offered integrated into the system. (delta-esourcing.com)
  • Eluent generation must allow the ability to change concentration throughout a run. (delta-esourcing.com)
System1
  • The system must be able to run both suppressed anions and suppressed cations from one instrument, allowing the option to switch between these chemistries as needed. (delta-esourcing.com)
Form1
  • Q: In the preparation of H2SO4 by Contact Process, why is SO3 not absorbed directly in water to form H2. (kernel.md)
High1
Sugar1
  • Today cranberries preparations are commonly sweetened with added sugar. (seprosys.com)
Include1
  • Inorganic disinfection byproducts include chlorite, chlorate, and bromate, which are also referred to as oxyhalides or DBP anions. (thermofisher.com)