高效液相色谱法测定大米中氨基甲酸酯类农药残留

HPLC determination of carbamate pesticide residues in rice grain

采用丙酮提取,氟罗里硅土柱净化,高效液相色谱-柱后衍生系统-荧光检测器测定大米中的氨基甲酸酯类农药残留,回收率在91.60%～107.23%之间,变异系数小于10%,最低检出限范围为0.0033～0.0087mg/kg。

Carbamate pesticide residues in rice grain were extracted with acetone and cleaned up with a Florisil column. Subsequent analysis was conducted with HPLC equipped with a post-column derivative system and fluorescence detection. Recoveries ranged from 91.6-107.2%, coefficients of variation were less than 10%, and minimum limits of detection ranged from 0.0033-0.0087 mg/kg.