Determination of 8 Pesticide Residues in Plant-Derived Foods by Gas Chromatography
Objective:Establish a gas chromatography method for the determination of trichlorfon,terbufos,methidathion,phosfolan,profenofos,phosalone,ethoprophos,and phosfolan-methyl residues in plant-derived foods.Method:The sample was pretreated using the QuEChERS method,and the residual amounts of 8 pesticides in plant-derived foods were determined using gas chromatography.Result:The eight target components measured showed good linear relationships within each linear range,with correlation coefficients ranging from 0.998 8 to 0.999 7.The average recoveries at low,medium,and high spiked levels ranged from 70.0%to 107.5%,and the relative standard deviations were 1.8%～8.4%(n=6).Conclusion:This method is fast,simple to operate,accurate,and highly sensitive,and can be applied to the rapid screening and quantitative analysis of the above-mentioned pesticide residues in plant-derived foods.
gas chromatographypesticide residueplant-derived foods
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