建立了植物性肽粉中42种有机磷农药的固相萃取-气相色谱-火焰光度检测器(SPE-GC-FPD)方法。样品用乙腈作为提取溶剂，提取液过石墨化炭黑-氨基复合柱净化，用乙腈-甲苯(体积分数为75%)洗脱，气相色谱-火焰光度检测器检测，外标法定量。在0.05和0.5 mg/kg 的添加水平下，42种有机磷的平均回收率为72.8%～103.8%，相对标准偏差在2.44%～8.71%，该方法的检出限为0.005～0.020 mg/kg，定量低限为0.015～0.060 mg/kg。采用所建立方法测定了10 种代表性的植物性肽粉中42种有机磷农药残留量，结果均未检出。该方法简单快捷、普及度高，适用于植物性肽粉中多种有机磷农药的分离与定量。

A method for the determination of 42 kinds of organophosphorus pesticide in plant-based peptide powder by solid-phase extraction-gas chromatography-flame photometric detector(SPE-GC-FPD) was established. The samples were extracted by acetonitrile, concentrated and purified by solid phase extracted on PestiCarb/NH2 column, eluted with acetonitrile/toluene(volume fraction is 75%). Finally, the pesticides were determined by flame photometric detector(FPD), quantified by external standard method. The recoveries were 72.8%-103.8% at 2 spiked levels of 0.05 and 0.50 mg/kg for 42 organophosphorus pesticides, and the relative standard deviations (RSDs) were between 2.44%-8.71%. The limits of detections were in the range of 0.005-0.020 mg/kg and the limits of quantitation were in the range of 0.015-0.060 mg/kg. A total of 10 plant-based peptides was tested and none of these pesticides were detected . The method can be applied to determine organophosphorus pesticides in plant-based peptide powder samples due to its efficiency and simplicity.