食品中农药残留检测的样品前处理技术

Review on Sample Preparation Techniques of Pesticide Residue Determinations in Foods

近年来由于农药的大量使用致使食品的农药残留问题倍受关注,提高农药残留分析检测技术是解决农药残留问题的重要手段。在农药残留检测中样品前处理技术又是检测过程中耗时最长,最容易出现误差的步骤。因而,发展样品前处理技术能提高农药残留检测的效率和准确率。本文综述了近年来食品中农药残留分析中固相萃取、固相微萃取、微波辅助萃取、超临界流体萃取法和凝胶渗透色谱几种样品前处理技术。

Nowadays pesticide residues in foods were receiving more and more attention due to the vast use of pesticides. To improve the technique of pesticide residue determination was an important means to assay pesticide residue. Sample preparation was a time- consuming and fallible stage in the determination. Therefore improving the sample preparation technique could enhance the efficiency and veracity of the determination. This article was to review several sample preparation techniques such as solid-phase extraction, solid-phase microextraction, microwave aided extraction, supercritical fluid extraction and gel permeation chromatography.