建立了测定烟草中涕灭威残留量的方法 ,即采用甲醇萃取烟草 ,萃取液中的涕灭威及其代谢物通过过氧化氢氧化转化为涕灭威砜 ,再用二氯甲烷提取去除干扰 ,然后用配备火焰光度检测器的气相色谱仪测定。外标法定量。方法的检出限为 0 .0 4 μg/g ,平均回收率为 83.12 %～ 99.16 % ,相对标准偏差为 5 .5 6 %～ 10 .77%。 A method for determination of aldicarb residues in tobacco was established, that is, methanol was used to extract tobacco and the aldicarb and its metabolites in the extract were oxidized by hydrogen peroxide to aldicarb and then extracted by dichloromethane , Followed by a gas chromatograph equipped with a flame photometric detector. External standard method. The detection limit of the method was 0. 04 μg / g. The average recovery was 83.12% -99.16%. The relative standard deviation was between 5.56% -10.77%.