"A digital microfluidic interface between solid-phase microextraction and liquid chromatography-mass spectrometry". Journal of ... Liquid-liquid extractions can be carried out on digital microfluidic device by taking advantage of immiscible liquids.9 Two ... This drawn liquid and the reservoir form a neck of liquid, akin to the neck of a splitting droplet but longer, and the ... Wijethunga PA, Nanayakkara YS, Kunchala P, Armstrong DW, Moon H (March 2011). "On-chip drop-to-drop liquid microextraction ...

"Automated Analysis of Oxytocin by On-Line in-Tube Solid-Phase Microextraction Coupled with Liquid Chromatography-Tandem Mass ... Recent advances in analytical instrumental techniques highlighted the importance of liquid chromatography (LC) coupled with ... of female mice resulted in loss of social interest in male mice during the sexually receptive phase of the estrous cycle. ... and saliva by orbitrap liquid chromatography-mass spectrometry". Drug Testing and Analysis. 11 (1): 119-128. doi:10.1002/dta. ...

EME is closely related to liquid-phase microextraction (LPME) and provides high pre-concentration and efficient sample clean-up ... Electro membrane extraction, or EME, is a miniaturized liquid-liquid extraction technique developed for sample preparation of ... EME involves the use of a small supported liquid membrane (SLM) sustained in the wall of a porous hollow fiber, and application ... The acceptor solution is an aqueous solution, and can be analyzed by liquid chromatography (LC) or capillary electrophoresis ( ...

Liquid Injection and Headspace Solid-Phase Microextraction for Crude Oil Analysis by Gas Chromatography with Mass Spectrometer ... Faust, Bruce C.; Allen, John M. (1 June 1993). "Aqueous-phase photochemical formation of hydroxyl radical in authentic ...

"Fiber-based liquid-phase micro-extraction of mebeverine enantiomers followed by chiral high-performance liquid chromatography ...

... evaluation of solid-phase microextraction coatings for untargeted metabolomic profiling of biological fluids by liquid ...

... fire ant pesticides in water by solid-phase microextraction and gas chromatography/mass spectrometry or high-performance liquid ... Hall, Brad J; Brodbelt, Jennifer S (1997-08-15). "Determination of barbiturates by solid-phase microextraction (SPME) and ion ... "Determination of benzophenone-3 and metabolites in water and human urine by solid-phase microextraction and quadrupole ion trap ... "Determination of Cannabinoids in Water and Human Saliva by Solid-Phase Microextraction and Quadrupole Ion Trap Gas ...

They have developed thin films for solid-phase micro extraction (SPME). Weber develops electrochemical detectors for use with ... Detectors for liquid chromatography. New York: Wiley. pp. 229-291. ISBN 9780471821694. "Steve Weber". University of Pittsburgh ... liquid chromatography techniques. An important area of application is the identification of peptides, which help to control the ...

Through this support, he invented the Solid-phase microextraction (SPME) technique which "uses a solid coating on a sample ... optical fibers that could extract both volatile and nonvolatile analytes from complex media in the liquid or gas phase. After ...

... that can be in liquid or gas phase. The quantity of analyte extracted by the fibre is proportional to its concentration in the ... Introduction to Solid Phase Microextraction Quantification using Solid Phase Microextraction (All articles with unsourced ... Solid Phase Microextraction: Theory and Practice, Wiley-VCH, 1997. Pawliszyn J.: Applications of Solid Phase Microextraction, ... Solid phase microextraction, or SPME, is a solid phase extraction sampling technique that involves the use of a fiber coated ...

... or a microextraction by packed sorbent (MEPS) device, a SPE method that uses a packed sorbent material in a liquid handling ... Reversed phase SPE separates analytes based on their polarity. The stationary phase of a reversed phase SPE cartridge is ... is a solid phase extraction technique that involves the use of a fiber coated with an extracting phase, that can be a liquid ( ... Solid-phase extraction (SPE) is an extractive technique by which compounds that are dissolved or suspended in a liquid mixture ...

Slaghenaufi D, Perello MC, Marchand-Marion S, Tempere S, de Revel G (February 2014). "Quantitative solid phase microextraction ... tobacco-specific nitrosamines in mainstream smoke by dispersive solid-phase extraction coupled with ultra-performance liquid ...

... or with solid-phase micro extraction (SPME). GC-MS is used for the analysis of unknown organic compound mixtures. One critical ... In drug screening, GC-MS methods frequently utilize liquid-liquid extraction as a part of sample preparation, in which target ... When a second phase of mass fragmentation is added, for example using a second quadrupole in a quadrupole instrument, it is ... The gas phase is then analysed directly. The most common type of mass spectrometer (MS) associated with a gas chromatograph (GC ...

Liquid Static head-space by syringe technology Dynamic head-space by transfer-line technology Solid phase microextraction (SPME ... The stationary phase is a microscopic layer of viscous liquid on a surface of solid particles on an inert solid support inside ... Gas chromatography is also sometimes known as vapor-phase chromatography (VPC), or gas-liquid partition chromatography (GLPC). ... and passing the gas through a stationary phase. The mobile phase is usually an inert gas or an unreactive gas such as helium, ...

In this regard, headspace solid phase microextraction (HS-SPME) has been gaining great highlighting and alternative ... Miniaturized liquid-liquid extraction (mLLE) followed by LC-MS/MS can be used to determine EC in wine, without using ... Several extraction and chromatographic techniques have been used, including continuous liquid-liquid extraction (LLE) with ... Other methods also make use of SPE, but use gas chromatography with mass spectrometry (MDGC/MS) and liquid chromatography with ...

... passive headspace adsorption using solid-phase microextraction (SPME) or dynamic headspace adsorption, which is the method used ... It is important to understand that an ignitable liquid is a liquid that will readily ignite when exposed to an ignition source ... but it could also be present at a scene as an ignitable liquid due to gasoline being a common fuel. Although ignitable liquids ... Ignitable liquids are not always fire accelerants, they may just be present at the scene under normal circumstances.Gasoline is ...

One example is the analysis of five local anesthetics in blood using headspace solid-phase microextraction (HS-SPME) and gas ... The gaseous and highly volatile liquid samples use a vacuum manifold, solids and less volatile liquids use a direct insertion ... The following gas phase reaction describes the electron ionization process M + e − ⟶ M + ∙ + 2 e − {\displaystyle {\ce {M{}+e ... Also, several other thermally stable and volatile compounds in solid, liquid and gas states can be detected with the use of ...

... spectrometry analysis of volatile compounds from Houttuynia cordata Thunb after extraction by solid-phase microextraction, ... Typically, 1-2% concentrations of 2-undecanone are found in dog and cat repellents in the form of a liquid, aerosol spray, or ...

Preferential Extraction of Hydrocarbons from Fire Debris Samples by Solid Phase Microextraction. Journal of Forensic Sciences. ... 163, 395-406 (1994). Edmiston, P. L., Kolchens, S., Saavedra, S. S. Temporally Gating a Slow-Scan CCD with a Liquid Crystal ... Selective Detection of Gas-Phase TNT by Integrated Optical Waveguide Spectrometry Using Molecularly Imprinted Sol-Gel Sensing ... Organic-Inorganic Hybrid Materials that Rapidly Swell in Non-Polar Liquids: Nanoscale Morphology and Swelling Mechanism. ...

15 Test Method for Furanic Compounds in Electrical Insulating Liquids by High-Performance Liquid Chromatography (HPLC) D5839 - ... Practice for Micro-Extraction of Water for Analysis of Volatile and Semi-Volatile Organic Compounds in Water D5242 - 92(2013) ... Guide for Gas-Phase Adsorption Testing of Activated Carbon D5162 - 15 Practice for Discontinuity (Holiday) Testing of ... or Liquid Waste Material D5233 - 92(2017) Test Method for Single Batch Extraction Method for Wastes D5234 - 92(2017) Guide for ...

18 Practice for the Solid Phase Micro Extraction (SPME) of Water and its Headspace for the Analysis of Volatile and Semi- ... Liquid Fuels, and Lubricants D6301 - 13 Practice for Collection of On-Line Composite Samples of Suspended Solids and Ionic ... Practice for Fast Screening for Volatile Organic Compounds in Water Using Solid Phase Microextraction (SPME) D6890 - 18 Test ... and Coatings by Solid Phase Microextraction-Gas Chromatography D6439 - 11(2017) Guide for Cleaning, Flushing, and Purification ...

"Truffle Aroma Characterization by Headspace solid-phase microextraction". Journal of Chromatography A. 1017 (1-2): 207-214. doi ... A colorless liquid, it occurs naturally in trace amounts and has attracted some attention as a potential biofuel, exploiting ... "Identification of Volatile Compounds in Cantaloupe at Various Developmental Stages Using Solid Phase Microextraction". Journal ...

... the gas-phase acidity of the protonated water clusters and the gas-phase basicity of the analyte molecule are of crucial ... Solid-liquid extraction based ambient ionization is based on the use of a charged spray, for example electrospray to create a ... "Development of an on-line microextraction method for use in fiber-spray/mass spectrometry". International Journal of Mass ... are detectable in the vapor phase despite of their low vapor pressure. Analyte ions are produced via gas-phase chemical ...

Headspace sorptive extraction (HSSE), stir bar sorptive extraction (SBSE), and solid phase microextraction (SPME) applied to ... The insulating liquid is in contact with the internal components. Gases, formed by normal and abnormal events within the ... Oil overheating results in breakdown of liquid by heat and formation of methane, ethane and ethylene. Corona is a partial ...

Isolation of the compound remained elusive, until solid-phase microextraction was used to extract the volatile compounds, which ... To use them as a flavoring, the dried mushrooms are either powdered or they are infused into one of the liquid ingredients used ...

"Automation of dispersive liquid-liquid microextraction and related techniques. Approaches based on flow, batch, flow-batch and ... "Propofol metabolism in man during the anhepatic and reperfusion phases of liver transplantation". Xenobiotica. 22 (1): 105-114 ...

Methods such as solid phase microextraction, sorbent sol-gels, gas chromatography and mass spectrometry can be used to identify ... Another device uses a solid state reaction to create a liquid that penetrates the case and starts the explosive burning. In ... Several ideas for detecting landmines are in the research and development phase. A research team at the University of Bristol ... Finally, it cannot see through metal casing or detect liquid explosives. Nevertheless, it is considered a promising technology ...

In Phase III trials, the most common adverse effects were dizziness, drowsiness and disorientation; 12% of subjects stopped ... He X, Lin L, Bernart MW, Lian L (1998). "Analysis of alkamides in roots and achenes of Echinacea purpurea by liquid ... Jain R, Singh R (2016). "Microextraction techniques for analysis of cannabinoids". TrAC Trends in Analytical Chemistry. 80: 156 ... Liquid chromatography (LC) techniques are also possible and, unlike GC methods, can differentiate between the acid and neutral ...

The feasibility of MIPs in solid-phase extraction, solid-phase microextraction, and stir bar sorption extraction has been ... and high performance liquid chromatography (HPLC). In 1972, Wulff and Klotz introduced molecular imprinting to organic polymers ... Moreover, chromatography techniques such as HPLC and TLC can make use of MIPs as packing materials and stationary phases for ... peptides and proteins on molecularly imprinted stationary phases". Journal of Chromatography. 691 (1-2): 317-323. doi:10.1016/ ...

... this method is referred to as solid-phase microextraction. With their high reactivity and large surface area, nanoparticles may ... creating a membrane that enhances the nanoparticle's ability to interact with hydrophobic liquids and protects it against ... Nanostructured sorbents for solid phase microextraction and environmental assay. In: Karn, B.; Masciangioli, T.; Zhang, W.; ... be effective sorbents to help concentrate target contaminants for solid-phase microextraction, particularly in the form of self ...

... pomegranate fruit using solvent-assisted flavour evaporation and headspace solid-phase micro-extraction methods". European Food ... It is a colorless liquid that is poorly soluble in water but soluble in most organic solvents. It is produced on a large scale ...

"Monitoring the photochemical degradation of triclosan in wastewater by UV light and sunlight using solid-phase microextraction ... As a result, access to sanitizing liquids and gels is controlled and restricted in some facilities. For example, over a period ... Hand sanitizer (also known as hand antiseptic, hand disinfectant, hand rub, or handrub) is a liquid, gel or foam generally used ... Automatic hand sanitizer Hand sanitizer liquid in Poland Alcohol free hand sanitizer Alcohol-based hand rubs are extensively ...

... and Solid Phase Microextraction (SPME) Applied to the Analysis of Roasted Arabica Coffee and Coffee Brew". Journal of ... The polymer is manufactured in multiple viscosities, ranging from a thin pourable liquid (when n is very low), to a thick ... PDMS is viscoelastic, meaning that at long flow times (or high temperatures), it acts like a viscous liquid, similar to honey. ...

GeSbTe is a phase change material used for its optic properties, such as that used in rewritable DVDs. Because germanium is ... For example, germanium chloride and germane (GeH4) are a liquid and gas, respectively, that can be very irritating to the eyes ... Sol-Gel Hybrid Organic-Inorganic Coatings for Capillary Microextraction and Gas Chromatography". Anal. Chem. 79 (24): 9441-9451 ... For example, germanium tetrachloride, GeCl4, is obtained as a colorless fuming liquid boiling at 83.1 °C by heating the metal ...

... cultivars using solid-phase microextraction (SPME) and gas chromatography-time-of-flight mass spectrometry (GC-TOFMS)". Journal ... When pruned, the inner part (core) secretes a sticky, milky liquid, which can hardly be removed from the skin, even with soap ...

"Analysis of sulfur-containing compounds in ambient air using solid-phase microextraction and gas chromatography with pulsed ... In urban environments, it can contain many components, notably solid and liquid particulates (such as soot from engines and fly ...

Adaptive cluster sampling tracks the selection probabilities for later phases of sampling so that an unbiased estimate of the ... Other sampling methods include the use of a denuder, needle trap devices, and microextraction techniques. Soil monitoring ... stabilized liquid membrane devices (SLMDs), and an air sampling pump. Although on-site data collection using electronic ... Ranked set sampling uses a two-phase sampling design that identifies sets of field locations, utilizes inexpensive measurements ...