中文摘要：

为检测烟草中的“吡蚜酮”等农药残留，建立了乙腈提取、分散固相萃取净化和高效液相色谱一质谱联用（LC—MS／MS）快速分析烟草中15种农药残留的方法。结果表明：15种农药在0．10，0．25和0．50μg／g3个加标水平的回收率为70．43％～117．81％，相对标准偏差（RSD）为1．16％～13．89％，检出限为0．004～0．030μg／g。该方法适合于批量烟草样品中多种农药残留的快速分析。

英文摘要：

A method for rapidly determining fifteen pesticides, such as pymetrozine and others, in tobacco with LC-MS/MS was developed. Samples were extracted by acetonitrile, cleaned up by dispersive solid-phase extraction and finally detected with LC-MS/MS. The results showed that the recoveries of the fifteen pesticides ranged from 70.43% to 117.81% at the standard＇s levels of 0.1,0.25 and 0.5-μg,the relative standard deviation （RSD） ranged from 1.16% to 13.89% ,and the limit of detection was from 0.004 to 0.030 μg/g. This method was suitable for the rapid analysis of multiple pesticide residues in batches of tobacco samples.