蔬菜中多种有机磷农药同时测定的气相色谱法  

Simultaneous Determination of Organophosphorus Pesticide Residues in Vegetables With Chromatography

作　　者：杨江龙[1] 刘拉平[1] 李岚[1] 李芳芳[1] 

机构地区：[1]西北农林科技大学测试中心,陕西杨凌712100

出　　处：《环境与健康杂志》2004年第4期251-252,共2页Journal of Environment and Health

摘　　要：目的探讨同时测定蔬菜中多种有机磷农药残留量的方法。方法蔬菜样品经前处理后用气相色谱仪测定甲胺磷、敌敌畏、乙酰甲胺磷、氧化乐果、甲拌磷、乐果、马拉硫磷和对硫磷等8种有机磷农药残留量,测定了方法的回收率和精密度,分析了干扰情况。结果上述8种农药的平均回收率分别为99.0%,96.0%,103.4%,101.3%,95.9%,99.4%,92.4%,91.0%,变异系数分别为6.91%,6.09%,9.23%,9.63%,9.18%,7.01%,6.82%,7.50%。结论该方法操作简便,回收率和精密度较好,干扰少。Objective To study a method for simultaneous determination of organophosphorus pesticide residues in vegetables. Methods The contents of methamidophos, dichlorvos, acephate, omethoate, phorate, dimethoate, alathion and parathion in the pre-treated vegetable samples were determined. The recovery rate and accuracy of the method were analyzed. The recoveries of methamidophos, dichlorvos, acephate, omethoate, phorate, dimethoate, alathion and parathion were 99.0%, 96.0%, 103.4%, 101.3%, 95.9%, 99.4%, 92.4% and 91.0% respectively. The coefficients of variation were 6.91%, 6.09%, 9.23%, 9.63%, 9.18%, 7.01%, 6.82% and 7.50% respectively. Conclusion The method was simple with the better recovery rate and accuracy and less interfering factors.

关 键 词：蔬菜 杀虫药 有机磷 农药残留量 

分 类 号：O657.7[理学—分析化学]