气相色谱法测定水中毒死蜱和阿特拉津Determination of Chlorpyrifos and Atrazine in Water by Gas Chromatography
王龙根;成强;陈红燕;
摘要(Abstract):
采用石油醚提取,以液液分配净化的方法对水样进行前处理,应用带TSD检测器和CP-SIL 19弹性石英毛细管的气相色谱仪对水样中阿特拉津和毒死蜱同时进行测定。结果表明,该方法回收率分别为:阿特拉津98.7%~100.5%,毒死蜱99.2%~102.4%,方法的变异系数小于4%,方法检出限分别为:阿特拉津0.000 5 mg/L,毒死蜱0.000 2 mg/L。说明该方法具有分离效果好、准确度好、灵敏度高、选择性强、操作简单的优点。
关键词(KeyWords): 农药残留;阿特拉津;毒死蜱;水;气相色谱
基金项目(Foundation):
作者(Author): 王龙根;成强;陈红燕;
Email:
DOI: 10.13989/j.cnki.0517-6611.2010.31.093
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