黄芪、甘草中有机氯农药残留量的气相色谱检测  

Determinition of Residue of Organochlorine Pesticides in Radix Astragali and Radix Glycyrrhizae

作　　者：王会丽[1] 陈建民[1] 张曙明[1] 

机构地区：[1]中国医学科学院中国协和医科大学药用植物研究所

出　　处：《药物分析杂志》1998年第5期325-329,共5页Chinese Journal of Pharmaceutical Analysis

摘　　要：建立了黄芪、甘草中有机氯农药残留量的气相色谱分析方法。样品以丙酮提取，在氯化钠存在下，以二氯甲烷进行液液分配，提取液以浓硫酸净化，采用ＳＥ－５４弹性石英毛细管柱，ＧＣ／ＥＣＤ检测有机氯（六六六，ＤＤＴ异构体及七氯，艾氏剂）农药的残留量，最低检测浓度为３２×１０－２～１４ｎｇ／ｇ，加样回收率在７７８％～１０２５％。A GC/ECD method for determination of the residues of organochlorine pesticides in Radix astragali and Radix glycyrrhizae was described using SE-54 column.The residues were extracted from sample with aceton by saturating the extraction solvent with NaCl and simultaneously liquid-liquid partitioning by dichlormethane.The extracts were cleaned up by concentrated H 2SO 4,The detection limits were 3 2×10 -2 ～1 4 ng/g,Recoveries of organochlorine pesticides were 77 8 %～102 5 %.

关 键 词：气相色谱 有机氯农药 残留量 黄芪 甘草 

分 类 号：R282.710.3[医药卫生—中药学]