为快速检测烟草中多有机磷农药残留,建立了乙腈提取,PSA吸附剂净化,气相色谱/质谱联用法测定烟草中有机磷农药残留量的方法。结果表明,20种有机磷农药的回收率为70%~118%,相对标准偏差0.5%~11.9%。该方法适合批量烟草样品中多有机磷农药残留的快速检测。
A method for fast determining the organophosphorous pesticide residues in tobacco was developed.Tobacco samples were extracted with acetonitrile,cleaned up with primary secondary amine adsorbent and detected by gas chromatography-mass spectrometry.The results showed that the recoveries of twenty organophosphorous pesticides ranged from 70% to 118% with relative standard deviation of 0.5% to 11.9%.This method is suitable for the rapid analysis of multiple organophosphorous pesticides residues in batches of tobacco samples.