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J Chromatogr B Analyt Technol Biomed Life Sci

Title:		Needle concentrator for gas chromatographic determination of BTEX in aqueous samples
Author(s):		Kubinec R; Berezkin VG; Gorova R; Addova G; Mracnova H; Sojak L;
Address:		"Faculty of Natural Sciences, Chemical Institute, Comenius University, Mlynska Dolina CH-2, SK-842 15 Bratislava, Slovak Republic. kubinec@fns.uniba.sk"
Journal Title:		J Chromatogr B Analyt Technol Biomed Life Sci
Year:		2004
Volume:		800
Issue:		1-Feb
Page Number:		295 - 301
DOI:		10.1016/j.jchromb.2003.09.009
ISSN/ISBN:		1570-0232 (Print) 1570-0232 (Linking)
Abstract:		A simple method of solventless extraction of volatile organic compounds (BTEX) from aqueous samples was developed and validated. A new arrangement of the full volume inside needle capillary adsorption trap (INCAT) device with Porapak Q as a sorbent material and wet alumina as a source of desorptive water vapour flow in a closed analytical system is presented. The analytical characteristics of developed device and of compared purge-and-trap (PTI) device for BTEX compounds are similar; the limits of detection as well as quantification are lower than 1 microg l(-1)
Keywords:		"Absorption Aluminum Oxide Chromatography, Gas Organic Chemicals/*analysis Polyethylenes Reference Standards Reproducibility of Results Temperature Water Pollutants, Chemical/*analysis Water Supply/*analysis Xylenes/analysis;"
Notes:		"MedlineKubinec, Robert Berezkin, Victor G Gorova, Renata Addova, Gabriela Mracnova, Helena Sojak, Ladislav eng Research Support, Non-U.S. Gov't Netherlands 2003/12/31 J Chromatogr B Analyt Technol Biomed Life Sci. 2004 Feb 5; 800(1-2):295-301. doi: 10.1016/j.jchromb.2003.09.009"