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中药材中20种农药残留的检测方法研究
引用本文:何睿,刘雪峰,刘海静. 中药材中20种农药残留的检测方法研究[J]. 药物分析杂志, 2011, 0(11)
作者姓名:何睿  刘雪峰  刘海静
作者单位:陕西中医学院;陕西省食品药品检验所;
摘    要:
目的:建立中药材中20种农药残留同时检测方法,为中药材安全使用标准的建立提供科学依据。方法:20种农药残留同时检测方法中样品以丙酮超声提取,并采用凝胶渗透色谱(GPC)的方法进行净化,选用气相色谱-质谱串联技术(GC/MS)在DB-17MS毛细管柱上用程序升温技术分离,采用选择离子检测方式,以保留时间和特征离子进行目标成分的定性定量测定,以内标法对样品进行测定。结果:20种农药可在34 min内完全分离,工作曲线在10~1000μg.L-1的范围内有良好的线性关系,相关系数在0.9970~0.9999的范围内,检测限为0.5~2.4μg.kg-1,3个水平添加回收率在70%~120%之间,相对标准偏差小于11%(n=9)。结论:本方法灵敏度高,重现性好,可用于中药材中20种农药的残留检测。

关 键 词:中药材  农药残留  凝胶渗透色谱  气相色谱-质谱联用  

Research on determination of 20 kinds of pesticide residues in Chinese herbs
HE Rui,LIU Xue-feng,LIU Hai-jing. Research on determination of 20 kinds of pesticide residues in Chinese herbs[J]. Chinese Journal of Pharmaceutical Analysis, 2011, 0(11)
Authors:HE Rui  LIU Xue-feng  LIU Hai-jing
Affiliation:HE Rui,LIU Xue-feng,LIU Hai-jing(1.Shaanxi University of Chinese Medicine,Xianyang712046,China,2.Shanxi Institute For Food And Drug Control,Xian 710061,China)
Abstract:
Objective:To establish an analytical method for the simultaneously determination of 20 pesticide residues in traditional Chinese herbs.To offer the evidence for the standard of safety to use of traditional Chinese herbs.Methods: The sample was extracted with acetone,and the extract was cleaned using GPC,concentrated using nitrogen blow.Based on GC/MS the pesticides were separated on a DB-17MS column using a temperature program and were detected with a mass selective detector in selective ion monitoring(SIM)...
Keywords:Chinese traditional herbs  pesticide residue  GPC  GC/MS  
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