此外,有一篇外文综述是有关前处理的,只是没有全文,已经在文献求助-应助区求助,如果有全文,可以参考一下是否有关冷冻净化方法的描述:
Review trace analysis of pesticide by gas ch romatography
Renévan der Hoff, P iet van Zoonen. 1 J Ch rom atog r A ,
1999, 843: 301-322.
Abstract
The analysis of pesticides is relevant to both food quality and the environment. Many laboratories are occupied with the analysis of pesticides in food, water or soil. Capillary gas chromatography is the technique most widely used in pesticide analysis. In present laboratory practice it serves as a screening method for over 300 pesticides. In this review we describe the role of gas chromatography as an analytical tool in combination with currently used or recently developed sample preparation techniques.
很遗憾,这篇文献中并没有相关的介绍!全文如下附件:Trace analysis of pesticides by gas chromatography感谢那位应助的朋友!