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

被引：7
|
作者：
Pérez-Trujillo, JP [1 ]
Frías, S [1 ]
Sánchez, MJ [1 ]
Conde, JE [1 ]
Rodríguez-Delgado, MA [1 ]
机构：
[1] Univ La Laguna, Dept Analyt Chem Nutr & Food Sci, Tenerife 38071, Spain
来源：
CHROMATOGRAPHIA | 2002年 / 56卷 / 3-4期
关键词：
gas chromatography; solid-phase microextraction; polydimethylsiloxane-divinylbenzene fibre; organochlorine compounds; polluted water samples;
D O I：
10.1007/BF02493211
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
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-phose extraction (SPE) and solid-phase microextraction (SPME) with fibers of different polarity shows that SPME with a recently commercialised fiber of polydimethylsiloxone 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.
引用
收藏
页码：191 / 197
页数：7
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