摘要
建立了芝麻中多种有机磷农药残留量的毛细管气相色谱的测定方法。样品以V(乙腈 )∶V(丙酮 ) =1 0∶1混合溶剂为提取剂 ,应用超声波辅助提取 ,固相吸附层析柱净化m(中性氧化铝 )∶m(弗罗里硅土 ) =1∶1 ,采用GC FPD法同时测定芝麻中的多种有机磷农药残留量。检出限为 0 .0 1 1~ 0 .0 1 7μg mL。方法的回收率为 82 .1 %~ 1 0 9.7%。
A method was developed for determination of multi-organophosphorous pesticide residues in sesame seeds by capillary gas chromatography with FPD. The sesame seeds were treated with acetonitrile and acetone(10+1),then the analyts were extracted by ultrasonication. The extracts were purified on the activated florisil and neutral aluminum oxide column. The average recovery was from 82.1% to 109.7%.
出处
《分析试验室》
CAS
CSCD
北大核心
2004年第7期10-12,共3页
Chinese Journal of Analysis Laboratory
关键词
气相色谱
有机磷农药
芝麻
Gas chromatography
Sesame seeds
Organophosphorous pesticides