Journal ArticleDOI
Strategies for the analysis of polar solvents in liquid matrixes.
TLDR
Various approaches to the analysis of polar compounds in different matrixes by solid-phase microextraction (SPME) were studied and fibers coated with poly(dimethylsiloxane)/divinylbenzene yielded the highest sensitivity in this type of analysis.Abstract:
Various approaches to the analysis of polar compounds in different matrixes by solid-phase microextraction (SPME) were studied. The analysis of polar analytes in nonpolar matrixes was performed with custom-made SPME fibers coated with Nafion perfluorinated resin. The sensitivity of this fiber in this type of analysis was better by 1 order of magnitude on average as compared to those of any of the commercially available fibers. The fiber was the most sensitive for the most polar of the compounds studied, i.e., methanol. Determination of methanol, ethanol, and 2-propanol in unleaded gasoline was illustrated. Except for methanol, the fiber did not perform very well in the analysis of alcohols in water. The fiber was capable of extracting water from benzene. SPME analysis of polar compounds in water was studied using aqueous solutions of acetone, methyl ethyl ketone, methyl isobutyl ketone (MIBK), 2-propanol, 2-methyl-2-propanol, and tetrahydrofuran. Fibers coated with poly(dimethylsiloxane)/divinylbenzene yi...read more
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Journal ArticleDOI
Solid-phase extraction: method development, sorbents, and coupling with liquid chromatography
TL;DR: The objective of this review is to provide updated information about the most important features of the new solid-phase extraction (SPE) materials, their interaction mode and their potential for modern SPE.
Journal ArticleDOI
Evolution of solid-phase microextraction technology
Heather L. Lord,Janusz Pawliszyn +1 more
TL;DR: The main objective of this contribution is to describe the development of the concepts, techniques and devices associated with solid-phase microextraction as a response to the evolution of understanding of the fundamental principles behind this technique.
Journal ArticleDOI
Theory of analyte extraction by selected porous polymer SPME fibres
TL;DR: In this paper, the authors presented theoretical description of the extraction process for adsorption-type fibres, including PDMS-DVB (divinyl benzene), Carbowax−DVB, and CARBOWAX-TR (template resin).
Journal ArticleDOI
Multiwalled carbon nanotubes coated fibers for solid-phase microextraction of polybrominated diphenyl ethers in water and milk samples before gas chromatography with electron-capture detection.
TL;DR: A novel S PME method using multiwalled carbon nanotubes (MWCNTs) as the SPME fiber coating for gas chromatography with electron-capture detection (GC-ECD) of PBDEs in environmental samples was successfully applied for the analysis of real samples including local river water, wastewater, and milk samples.
Journal ArticleDOI
Current trends in solid-phase microextraction (SPME) fibre coatings
TL;DR: The properties, advantages and drawbacks of the different types of commercially available SPME fibre coatings are discussed in detail, as are those of novel types of coatings and the methodologies of their preparation.
References
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Journal ArticleDOI
Optimization of solid-phase microextraction conditions for determination of phenols
TL;DR: In this article, a solid phase microextraction (SPME) method based on poly(acrylate)coated fibers has been developed for the phenol regulated by U.S. EPA wastewater method 604 and 623 and Ontario MISA Group 20 regulations.
Journal ArticleDOI
Rapid determination of polyaromatic hydrocarbons and polychlorinated biphenyls in water using solid-phase microextraction and GC/MS.
David W. Potter,Janusz Pawliszyn +1 more
TL;DR: Solid-phase microextraction was investigated as a solvent-free alternative method for the extraction and analysis of nonpolar semivolatile analytes and eliminates the loss of analytes through adsorption onto container walls and saves transport costs.
Journal ArticleDOI
Solid-Phase Microextraction for the Analysis of Human Breath
Christoph Grote,Janusz Pawliszyn +1 more
TL;DR: Solid-phase microextraction (SPME) has been applied to the quantitative determination of ethanol, acetone, and isoprene in human breath and is capable of detecting concentrations of acetone andIsoprene reported for healthy subjects.
Journal ArticleDOI
Analysis of Substituted Benzene Compounds in Groundwater Using Solid-Phase Microextraction
TL;DR: In this paper, Solid Phase Microextraction (SPME) was applied to the analysis of benzene, toluene, ethyl benzene and xylenes in groundwater.
Journal ArticleDOI
Detection of substituted benzenes in water at the pg/ml level using solid-phase microextraction and gas chromatography-ion trap mass spectrometry.
David W. Potter,Janusz Pawliszyn +1 more
TL;DR: The combined method SPME-GC-IT-MS, using fibers coated with a 100-microns polydimethylsiloxane coating, showed a limit of quantitation (LOQ) of 50 pg/ml benzene in water, which exceeds the requirements of both the United States Environmental Protection Agency method 524.2 and the Ontario Municipal/Industrial Strategy for Abatement program.