摘要
研究了气相色谱法测定中药材中多种拟除虫菊酯类残留量的分析方法。样品经正己烷．丙酮混合液[V（正己烷）：V（丙酮）=1：1]提取，氟罗里硅土层析柱净化，采用毛细管色谱柱分离，GC-ECD可同时测定8种拟除虫菊酯类农药残留量，回收率为76．6％～104．2％。
A method for the determination of eight pyrethroid pesticide residues in Chinese herbal medicines by capillary gas chromatography was studied. The pyrethroids in Liquorice Root were extracted by n-hexane and acetone （ V ＋ V, 1 ＋ 1 ）. The sample extracts were purified by a column packed with Florisil. The pyrethroids were separated from each other through a capillary column, analyzed by GC-ECD and quantified by external standard method. The results showed that the recoveries of this method ranged from 76.6 % - 104.2 %.
出处
《分析试验室》
CAS
CSCD
北大核心
2006年第4期89-92,共4页
Chinese Journal of Analysis Laboratory
关键词
气相色谱
中药材
拟除虫菊酯
农药残留
Gas chromatography
Chinese herbal medicine
Pyrethroid
Pesticide residues
