Determination of organochlorine pesticides by gas chromatography with solid-phase microextraction

被引：0
|
作者：
J. P. Pérez-Trujillo
S. Frías
M. J. Sáchez
J. E. Conde
M. A. Rodríguez-Delgado
机构：
[1] University of La Laguna,Department of Analytical Chemistry, Nutrition and Food Science
来源：
Chromatographia | 2002年 / 56卷
关键词：
Gas chromatography; Solid-phase microextraction; Polydimethylsiloxane-divinylbenzene fibre; Organochlorine compounds; Polluted water samples;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A study of different extraction techniques for the determination of a selected group of organochlorine compounds in surface waters is presented. Comparison of liquid-liquid extraction (LLE) with solid-phase extraction (SPE) and solid-phase microextraction (SPME) with fibers of different polarity shows that SPME with a recently commercialised fiber of polydimethylsiloxane divinylbenzene allows these compounds to be determined in surface waters with good extraction efficiencies. Extraction time, effect of temperature, ionic strength and pH were optimised, allowing quantification in agricultural effluents in the range 1.0–60 ng·L−1.
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页码：191 / 197
页数：6
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