Objective To investigate the matrix effects of determination of pesticide residue in agricultural products by gas chromatography. Methods The content of 16 kinds of common organophosphorus pesticides and 17 kinds of common organochlorine and pyrethroid pesticides in 3 representative substrates (cabbage, apple, oyster mushroom) were determined by gas chromatography, and the matrix effects were calculated. Results The matrix effects of 16 organophosphorus pesticides were generally higher than 17 organochlorine and pyrethroid pesticides. Organophosphorus pesticides generally exhibited matrix enhancement effects. Organochlorine and pyrethroid pesticides generally exhibited matrix attenuating effects. Conclusion In chromatographic analysis, matrix matched standard method is recommended for quantitative detection to ensure the accuracy of the test results.
标题：气相色谱法测定农产品中农药残留的基质效应研究
英文标题：Study on matrix effect of determination of pesticide residues in agricultural products by gas chromatography
