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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (19): 88-93.

所属专题： 植物保护

• 农学 农业基础科学 • 上一篇    下一篇

固相萃取-气相色谱法检测八种有机磷农药的方法及条件优化

李博 张莉 汪东风 吴昊 孙继鹏   

  • 收稿日期:2010-04-30 修回日期:2010-06-04 出版日期:2010-10-05 发布日期:2010-10-05
  • 基金资助:

    壳聚糖金属配合物对有机磷农药磷酸酯键的水解作用及机理研究

Method for Determination of Eight Organophosphorus Compounds by Gas Chromatography Coupled with Solid Phase Extraction

  • Received:2010-04-30 Revised:2010-06-04 Online:2010-10-05 Published:2010-10-05

PDF (PC)

1238

摘要：

通过综合运用固相萃取-气相色谱联用技术，对八种具有代表性结构的有机磷农药敌敌畏、氧化乐果、甲胺磷、乐果、马拉硫磷、毒死蜱、对硫磷、甲基对硫磷的同时检测方法进行了探索和优化。方法检测限为1.1~2.5ug/L，线性范围为0.1~4mg/L，相对标准偏差为2.0~7.4%，回收率为69.1%~108.2%，完全满足农残检测要求。

关键词: 引证分析, 引证分析, 中国水产科学, 科研热点

Abstract:

A method combined solid phase extraction (SPE) with gas chromatography (GC) for simultaneous determination of eight representative organophosphorous compounds was developed in this paper. Dichlorvos, chlorpyrifos, parathion, parathion-methyl, dimethoate, omethoate, methamidophos, malathion methamidophos, were selected as the analytic targets representing organophosphorous pesticides. The detection limit was between 1.1ug/L to 2.5ug/L. The linear range was between 0.1mg/L to 4mg/L. The relative standard deviation ranged from 2.0% to 7.4%. The average recoveries ranged from 69.1% to 108.2%. The method discussed could be applied for quick and accurate simultaneous determination of organophosphorous pesticides.