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J Chromatogr A


Title:Importance of extracting solvent vapor pressure in headspace liquid-phase microextraction
Author(s):Yan X; Yang C; Ren C; Li D;
Address:"Department of Chemistry, College of Science, Yanbian University, Park Road 977, Yanji City 133002, Jilin Province, China"
Journal Title:J Chromatogr A
Year:2008
Volume:20080813
Issue:1-Feb
Page Number:182 - 185
DOI: 10.1016/j.chroma.2008.08.020
ISSN/ISBN:0021-9673 (Print) 0021-9673 (Linking)
Abstract:"Of the many parameters that affect the enrichment factors in headspace liquid-phase microextraction, in this study, we systematically investigated the influence of the vapor pressure of the extracting solvent. Seven extracting solvents with different vapor pressures were selected and tested. It was found that the vapor pressure of the extracting solvent dramatically affects the enrichment factor and the factor was increasing by decreasing the extracting solvent vapor pressure under given experimental conditions. The result was validated for volatile organic compounds such as polynuclear aromatic hydrocarbons, organochlorine pesticides and polychlorinated biphenyls"
Keywords:Chemical Fractionation/*methods Gas Chromatography-Mass Spectrometry/*methods Polycyclic Aromatic Hydrocarbons/isolation & purification Pressure Solvents/*chemistry;
Notes:"MedlineYan, Xue Yang, Cui Ren, Chunyan Li, Donghao eng Research Support, Non-U.S. Gov't Validation Study Netherlands 2008/08/30 J Chromatogr A. 2008 Sep 26; 1205(1-2):182-5. doi: 10.1016/j.chroma.2008.08.020. Epub 2008 Aug 13"

 
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