分散液相微萃取测定苹果中灭线磷马拉硫磷和毒死蜱残留

被引：17

作者：

赵文婷 ^{[1
]}

杨中华 ^{[2
]}

魏朝俊 ^{[1
]}

赵建庄 ^{[1
]}

机构：

[1] 北京农学院农业部都市农业(北方)重点开放实验室

[2] 中国农业大学理学院

来源：

农业环境科学学报 | 2010年 / 29卷 / 09期

关键词：

分散液相微萃取; 有机磷农药; 样品前处理;

D O I：

暂无

中图分类号：

TS255.7 [果蔬加工品标准与检验];

学科分类号：

摘要：

采用液液分散微萃取与气相色谱-火焰光度检测器联用技术,提出了可用于苹果中有机磷农药残留检测的一种快速、灵敏的新方法,并通过试验对提取条件进行了优化。结果表明,该方法成功地应用到苹果样本的检测。在优化的条件下最低检出限从1.32～3.58μg.mL-1,相对标准偏差为11.06%15.39%,分析标准曲线采用五点法（浓度从0.5～20μg.mL-1）来绘制,线性的变化从0.977 3～0.997 6。为了评价样本的基质效应,用有机磷农药从3个不同浓度水平对样本进行添加,回收率从64.0%89.0%,并且没有发现基质效应。液液分散微萃取不仅操作简便而且有机溶剂使用量极少,是一种顺应时代要求的环境友好型萃取方法。

引用

页码：1840 / 1844

页数：5

共 10 条

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