气相色谱法测定桂皮中毒死蜱农药残留量

Determination of Chlorpyrifos Pesticide Residues in Cassia by GC

介绍了用气相色谱法检测毒死蜱农药在桂皮中的残留方法,选用Agilent 6890N气相色谱仪,DB-1701和HP-5双柱法、火焰光度检测器(FPD)和电子俘获检测器(ECD)双检测器来定性,外标法定量,并采用中性氧化铝柱净化样液,效果良好,节约检测成本,回收率为86.7%～93.4%,各项指标均满足有关要求.

The residue analytical method for chlorpyrifos pesticides in cassia by GC was introduced. The Agilent 6890N gas chromatograph was used with DB-1701 and HP-5 capillary column,flame photometric detector（FPD） and electron capture detector （ECD）, using external standard method. The pesticides were cleaned--up with alumina neutral to get the good effect and save examination cost, The average recovery was 86.7%-93.4%, All the technical items conformed to the requirements.