| 气相色谱法测定地下水中15种有机氯农药 |
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| 引用本文： | 王敏捷,周姣花,曹立峰.气相色谱法测定地下水中15种有机氯农药[J].岩矿测试,2010,29(5):628-630. |
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| 作者姓名： | 王敏捷 周姣花 曹立峰 |
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| 作者单位： | 河南省岩石矿物测试中心,河南,郑州,450012 |
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| 基金项目： | 国土资源地质大调查--地下水污染测试技术研究项目资助 |
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| 摘 要： | 通过优化色谱分离条件,建立了一种以正己烷为液-液萃取溶剂,气相色谱法(电子捕获检测器)检测地下水中15种有机氯农药组分的分析方法。采用内标法降低了系统误差,定量分析结果更加准确。加标20ng/L时测定回收率为84.8%～101.0%,相对标准偏差(RSD,n=7)为1.9%～5.6%;基于5ng/L加标样品计算的检出限为0.6～1.4ng/L。方法适用于地下水中有机氯农药的检测。
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| 关 键 词： | 有机氯农药 液-液萃取 气相色谱法 地下水 |
| 收稿时间： | 2010/1/18 0:00:00 |
| 修稿时间： | 2010/7/30 0:00:00 |
Determination of 15 Organochlorine Pesticide Residues in Groundwater by Gas Chromatography |
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| WANG Min-jie,ZHOU Jiao-hua and CAO Li-feng.Determination of 15 Organochlorine Pesticide Residues in Groundwater by Gas Chromatography[J].Rock and Mineral Analysis,2010,29(5):628-630. |
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| Authors: | WANG Min-jie ZHOU Jiao-hua and CAO Li-feng |
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| Affiliation: | Henan Analytical & Testing Center for Minerals and Rocks, Zhengzhou 450012, China;Henan Analytical & Testing Center for Minerals and Rocks, Zhengzhou 450012, China;Henan Analytical & Testing Center for Minerals and Rocks, Zhengzhou 450012, China |
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| Abstract: | A method for the determination of 15 organochlorine pesticides in water samples was established based on liquid-liquid extraction with n-hexane and gas chromatography with electron capture detector. The internal standard method was used to reduce the systematic errors and improve the analytical accuracy. The detection limits of the method for the target compounds were in the range of 0.6~1.4 ng/L and the recoveries for 20 ng/L standard addition were 84.8%~101.0% with the precision of 1.9%~5.6% RSD (n= 7). The method is suitable for routine analysis of the organochlorine pesticides in groundwater samples. |
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| Keywords: | organochlorine pesticides liquid-liquid extraction gas chromatography groundwater |
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