Analytical characteristics of the determination of benzene, toluene, ethylbenzene and xylenes in water by headspace solvent microextraction

被引:158
作者
Przyjazny, A [1 ]
Kokosa, JM [1 ]
机构
[1] Kettering Univ, Sci & Math Dept, Flint, MI 48504 USA
关键词
headspace analysis; solvent extraction; extraction methods; water analysis; benzene; toluene; ethylbenzene; xylenes;
D O I
10.1016/S0021-9673(02)01422-X
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Headspace solvent microextraction (HSM) is a novel method of sample preparation for chromatographic analysis. It involves exposing a microdrop of high-boiling point organic solvent extruded from the needle tip of a gas chromatographic syringe to the headspace above a sample. Volatile organic compounds are extracted and concentrated in the microdrop. Next, the microdrop is retracted into the microsyringe and injected directly into the chromatograph. HSM has a number of advantages, including renewable drop (no sample carryover), low cost, simplicity and ease of use, short time of analysis, high sensitivity and low detection limits, good precision, minimal solvent use, and no need for instrument modification. This paper presents analytical characteristics of HSM as applied to the determination of benzene, toluene, ethylbenzene and xylenes in water. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:143 / 153
页数:11
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