摘要
目的：用毛细管气相色谱对几种含参类中药制剂中19种有机氯农药的残留量进行测定。方法：样品用醋酸乙酯超声提取并经Florisil（固相萃取柱净化,以不分流进样方式,用DB-1701弹性石英毛细管柱,经柱程序升温技术分离,并用电子捕获检测器进行检测,外标法计算含量。结果：平均回收率为70.4%-125.0%,RSD为3.16%-9.86%,所测定样品均含有不同程度的农药残留。结论：本方法快速、简便、准确,适用于中药样品中有机氯类农药残留的检测。
Objective： To determine the residues of 19 organochlorine pesticides in traditional chinese medicine （TCM） including Radix ginseng or Radix panacis quinquefolii by capillary gas chromatograrhy. Methods： The samples were extracted with ethyl acetate by ultrasonic, then cleaned up by a column packed with Florisil. The capillary column was DB-1701 （30 m × 0. 32 m, 0. 25 μm）. The electron capture detector （ECD） was used. The pesticide residues were calculated by external standard method. Results： The average recoveries and RSD ranged from 70. 4% to 125.0% and 3. 16% to 9.86%. Conclusion： The method is rapid, simple and accurate. It can be used to determine organochlorine pesticide residues in TCM.
出处
《中药材》
CAS
CSCD
北大核心
2007年第10期1305-1308,共4页
Journal of Chinese Medicinal Materials
基金
广州市科技计划项目(2007Z2-E5061)
关键词
有机氯农药
毛细管气相色谱法
残留分析
Organochlorine pesticides
Capillary gas chromatography
Residue analysis
