Analysis of Organophosphorus Pesticide Residues in Vegetables on the Markets of Weinan

[Objective]To know the situation of organophosphorus pesticide residues in vegetables on the markets of Weinan. [Method]A total of 140 samples of 14 kinds of vegetable were collected. The method of GB /T 5009. 20-2003 was applied to determine the contents of ten organophosphorus pesticides. [Result]Six kinds of organophosphorus pesticides were detected. The detectable rate of organophosphorus pesticide was 26. 43%,and the exceeding rate of them were 20. 71%. [Conclusion]There are organophosphorus pesticide residues in vegetables on the markets of Weinan. To ensure safety of agricultural products,it is important to strengthen the supervision of the use of strong pesticides.