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污染环境的农药及其代谢物的品种日趋增多,因此,为对蔬菜上多种农药残留进行安全性评价提供依据,必须建立多残留分析的方法。我们对有机磷农药残留量测定的气相层析方法作了一些探索,现将部分内容报道如下。实验材料与方法一、仪器与参考品仪器SIGMA-1气相层析仪,氮磷检测器,美国PE公司制。参考品乐果由成都试剂厂提供,含量>99％;敌敌畏、马拉松和对硫磷由杭州农药厂提供,含量:敌敌畏92.3％,对硫磷96％,马拉松83％;杀虫脒(内标物)由上
The number of pesticides and their metabolites that pollute the environment is increasing day by day. Therefore, in order to provide a basis for evaluating the safety of various pesticides on vegetables, a multi-residue analysis method must be established. We have made some explorations of gas chromatographic methods for the determination of organophosphorus pesticide residues. Some of the contents are reported below. Experimental materials and methods 1. Instrument and reference products SIGMA-1 gas chromatography, nitrogen and phosphorus detectors, the United States PE company. The reference pinole fruit was provided by Chengdu Reagent Factory with a content of >99%; dichlorvos, marathon, and parathion were provided by Hangzhou Pesticide Factory with content of 92.3% of dichlorvos, 96% of parathion, and 83% of marathon; insecticide (internal standard) (from)