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J Chromatogr A

Title:		Needle-type extraction device for the purge and trap analysis of 23 volatile organic compounds in tap water
Author(s):		Ueta I; Razak NA; Mizuguchi A; Kawakubo S; Saito Y; Jinno K;
Address:		"Department of Applied Chemistry, University of Yamanashi, 4-3-11 Takeda, Kofu 400-8511, Japan. Electronic address: iueta@yamanashi.ac.jp"
Journal Title:		J Chromatogr A
Year:		2013
Volume:		20130706
Issue:
Page Number:		211 - 216
DOI:		10.1016/j.chroma.2013.07.011
ISSN/ISBN:		1873-3778 (Electronic) 0021-9673 (Linking)
Abstract:		"We developed a rapid determination technique for trace volatile organic compounds (VOCs) in tap water by introducing a novel needle-type extraction device coupled to a purge-and-trap method. To extract a wide range of VOCs, a new extraction needle containing particles of divinylbenzene and activated carbon was developed in this study. During the active sampling of the headspace gas in a glass vial by the extraction needle, pure N2 gas was used for purging the aqueous sample. After the optimization of several experimental parameters, such as the addition of the salt and conditions of dry purging and desorption, the extraction performance of the device and method was evaluated for 23 VOCs that are typically found in tap water samples. The quantification limits of the method were 0.6 mug/L for 1,1-dichloroethylene and less than 0.5 mug/L for other VOCs, with good repeatability being confirmed for all the target compounds. Taking advantage of the excellent recovery of VOCs, the determination of VOCs in real tap water samples was carried out successfully. Because the developed method does not require sample heating and/or cryogenic focusing, simple and rapid analyses can be performed along with satisfactory sensitivity for typical tap water samples"
Keywords:		Chemical Fractionation/*instrumentation/methods Drinking Water/*chemistry Gas Chromatography-Mass Spectrometry Needles Reproducibility of Results Sensitivity and Specificity Temperature Volatile Organic Compounds/*analysis/isolation & purification Water P;
Notes:		"MedlineUeta, Ikuo Razak, Nurhafizza Abd Mizuguchi, Ayako Kawakubo, Susumu Saito, Yoshihiro Jinno, Kiyokatsu eng Research Support, Non-U.S. Gov't Netherlands 2013/07/24 J Chromatogr A. 2013 Nov 22; 1317:211-6. doi: 10.1016/j.chroma.2013.07.011. Epub 2013 Jul 6"