Gas chromatographic analysis of pesticides in water with off-line solid phase extraction

被引：17
|
作者：
Pihlström, T [1 ]
Hellström, A [1 ]
Axelsson, V [1 ]
机构：
[1] Natl Food Adm, S-75126 Uppsala, Sweden
来源：
ANALYTICA CHIMICA ACTA | 1997年 / 356卷 / 2-3期
关键词：
gas chromatography; pesticides; solid phase extraction;
D O I：
10.1016/S0003-2670(97)00521-7
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A new solid phase extraction method has been developed to measure pesticide concentrations in water. The sample is extracted using polymer-divinylstyrene extraction columns and eluted with ethyl acetate and injected in capillary gas chromatographic columns connected to various detectors. Due to the very simple extraction procedure this method has a short analysis time. The limit of quantification (LOQ) was from 0.05 to 0.01 mu g/l depending on the pesticides to be analysed. The mean of the recoveries for the method was 85%. The method was compared with liquid-liquid extraction (LLE) in a study monitoring pesticide residues in natural waters of Sweden. (C) 1997 Elsevier Science B.V.
引用
收藏
页码：155 / 163
页数：9
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