本文介绍作者对薄层分析中三种不同显色法的显色效果与有机磷农药化学性质关系的一些体会。一、硫代磷酸酯类显色方法硫代磷酸酯类显色剂（即：氯化钯法、二氯配氯亚铵－溴法等）是有机磷农药薄层分析中最常用的显色方法。其显色原理是通过试剂对农药成为中的硫代磷酸酯的化学 This article describes some of the experiences of the authors on the relationship between the coloration effects of three different coloration methods and the chemical properties of organophosphorus pesticides in thin layer analysis. 1. Phosphorothioate chromogenic methods Phosphorothioate chromogenic reagents (ie: palladium chloride method, dichlorochloroammonium chloride-bromine method, etc.) are the most commonly used color chemistries in organic phosphorus pesticide thin layer analysis. method. The principle of color development is the chemistry of phosphorothioate that is used as a reagent for pesticides.