微波辅助萃取法提取中药材中有机氯农药残留

化工进展

微波辅助萃取法提取中药材中有机氯农药残留

李雪梅，周围

西北师范大学地理与环境科学学院；甘肃省出入境检验检疫局综合技术中心

出版日期:2006-11-25 发布日期:2006-11-25

Determination of organochlorine pesticides in traditional Chinese medicine using microwave-assisted extraction

LI Xuemei，ZHOU Wei

School of Geography and Environment Science，Northwest Normal University；
Central Laboratory，Gansu Provinciual EntryExit Inspection and Quarantine

Online:2006-11-25 Published:2006-11-25

摘要/Abstract

摘要： 研究了采用微波辅助萃取技术从中药材中萃取有机氯农药的影响因素。有机氯农药用毛细管气相色谱-电子捕获检测器检测。实验结果表明萃取中药材中有机氯农药残留的最佳微波萃取参数设置为：萃取温度120 ℃；萃取时间8.00 min；萃取压力0.8 MPa。在此微波萃取条件下，萃取回收率在85%～117%，相对标准偏差介于3.4%～6.1%，方法最小检出限为0.001～0.005 μg·g^－1。

Abstract: A method to determine organochlorine pesticides in traditional Chinese medicine based on microwave-assisted extraction was studied. The organochlorine pesticides were determined with gas chromatography and electron capture detection. The result showed that the optimum setting of microwave-assisted extraction parameters were: microwave temperature 120 ℃；microwave time8.00 min；microwave pressure 0.8 MPa. The values of recovery were 85%～117%, the relative standard deviation (RSD) were 3.4%～6.1% and the limit of the detection for organochlorine pesticideswas 0.001 μg·g^－1～0.005 μg·g^－1.

李雪梅，周围. 微波辅助萃取法提取中药材中有机氯农药残留 [J]. 化工进展.

LI Xuemei，ZHOU Wei. Determination of organochlorine pesticides in traditional Chinese medicine using microwave-assisted extraction[J]. Chemical Industry and Engineering Progree.