GC-MS法快速测定别克参中有机氯农药残留量研究

Rapid Determination of Organochlorine Pesticide Residues in Erythronium sibiricum by GC-MS

采用乙腈超声提取,GC-MS法测定别克参（Erythronium sibiricum）中10种有机氯农药残留量。结果表明,各农药标准工作曲线线性关系良好,分析结果的相对标准偏差为1.79%-4.30%,加样回收率为75.7%-123.3%。所测10种有机氯农药在3批别克参药材中的含量均在检测限以下。该方法前处理方法简单、灵敏度高、稳定性好,能够满足别克参药材中有机氯农药残留快速检测的要求。

To establish a method for rapid determination of organochlorine pesticide residues in Erythronium sibiricum,the samples were ultrasonically extracted with acetonitrile and determined by GC-MS.Satisfactory linearities for 10 pesticides were obtained with the precision of measurement ranging from 1.79% to 4.30%.The recoveries of detection were ranged from75.7% to 123.3%.Erythronium sibiricum samples did not contain any organochlorine pesticide residues.The established method was simple,stable and sensitive,which could satisfy the need for rapidly determing of organochlorine pesticide residues.