Determination of Organophosphorus Pesticide Residues in Vegetables by Gas Chromatography
By optimizing the detection conditions such as injection volume,injection mode,temperature program and gradient setting,an efficient and reliable gas chromatography method for the detection of various organophosphorus pesticide residues in vegetables was established.The experimental results showed that the organophosphorus pesticides had a good linear relationship in the range of 0.025~10.00 μg·mL-1,with correlation coefficients greater than 0.999.The recovery rate of spiked samples is above 80%,and the relative standard deviation is less than 5% .This method has high sensitivity,accuracy and repeatability,and can be effectively applied to the detection of organophosphorus pesticide residues in vegetables,providing reliable technical support for food safety.
gas chromatographyvegetablesorganophosphorus pesticide residuesfood safety