摘要
利用GC-MS在选择离子模式下对茶叶中几种有机磷农药进行定性和定量分析，在提取过程中，省去过柱操作步骤，缩短了操作时间。结果表明，5种有机磷农药的添加质量浓度为1．0mg／kg时，回收率均在86．5％～101．5％，RSD在4．8％～9．0％之间，方法的检出限在0．0047～0．023mg／kg，符合农药残留量检测要求。
Interval time was shortened through simplifying extraction procedure. Quality and quantitative analysis of five organophosphorus pesticides were determined by GC/MS in SIM mode. The results showed that average recovery of five pesticide at the concentration of 1.0 mg/kg was in a range of 86.5% ～ 101.5%, and coefficient of variation was 4.8% ～ 9.0%. The minimum detection limit for tea was between 0.0047 mg/kg and 0.0023 mg/kg. Those all suggest that the results meet the fundamental requirements for pesticide residue analysis and the method is accurate and reliable.
出处
《分析试验室》
CAS
CSCD
北大核心
2006年第7期67-70,共4页
Chinese Journal of Analysis Laboratory
基金
湖南文理学院基金资助(JJQD05048)
