固相萃取-气相色谱法同时测定橙汁中3种农药残留  

Simultaneous Determination of Three Pesticides in Orange Juice by SPE-GC

作　　者：郭晴晴[1] 胡德禹[1] 张钰萍[1] 张侃侃[1] 高洁[1] 

机构地区：[1]贵州大学精细化工研究开发中心绿色农药与农业生物工程国家重点实验室培育基地教育部重点实验室,贵阳550025

出　　处：《农药》2011年第8期588-590,593,共4页Agrochemicals

摘　　要：[目的]建立橙汁中3种农药的残留分析方法。[方法]采用石油醚和丙酮混合溶剂提取,盐析后浓缩,弗罗里硅土柱净化,气相色谱检测。[结果]在此条件下,不同添加水平的高效氯氰菊酯、哒螨酮、腐霉利的平均回收率分别为85.8%～106.2%、92.6%～102.4%和97.2%～99.4%,相对标准偏差分别为5.10%～7.65%、2.70%～9.22%和2.13%～5.44%。[结论]方法具有简便、快速、灵敏的特点,适合于橙汁中3种农药残留的测定。A method was established for determining three pesticides in orange juice.[Methods]Samples were extracted with a mixture of petroleum ether and acetone,concentrated after salting out,purified with a florisil column,and determined by GC.[Results]Under this condition,the average recoveries in different addition levels of beta-cypermethrin,pyridaben and procymidone were 85.8-106.2%,92.6-102.4% and 97.2-99.4%,respectively,the relative standard deviations were 5.10-7.65%,2.70-9.22% and 2.13-5.44%,respectively.[Conclusions]The method was simple,rapid and sensitive.It was applicable to the determination of the three pesticides residues in orange juice.

关 键 词：橙汁 残留 固相萃取 气相色谱 基质匹配标准校正 

分 类 号：TS255.7[轻工技术与工程—农产品加工及贮藏工程]