Determination of multi-pesticide residues in vegetables by Gas Chromatography

Objective: To know the situation of pesticide residues in vegetables on the markets of Nanchang.Methods: According to the recommended items by the national food contamination monitoring manual,Gas Chromatography-Flame Photometry was applied to determine the contents of organophosphate pesticide,organochlorine pesticide,pyrethroid pesticide,carbamate pesticide in 38 kinds of vegetables samples.Results: The rate of detection for the pesticide residues was 49.72%,the main pesticide residues in vegetable samples were carbaryl,dicofol,bifenthrin,cypermethrin and isoprocorb,the peak level of residue reached 6.90 mg/kg.Conclusion: There were still pesticide pollution in vegetables in the markets of Nanchang city.Therefore,It′s necessary to strengthen the surveillance of pesticide residues and spread green non-pollution vegetables.It is necessary to further strengthen the food safety control through monitoring food pollution trend.