| 加速溶剂萃取-气相色谱法测定土壤中有机氯农药和多氯联苯 |
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| 引用本文： | 张岩,张景发,陈艳梅,孟娟,韩翠英.加速溶剂萃取-气相色谱法测定土壤中有机氯农药和多氯联苯[J].岩矿测试,2010,29(5):491-496. |
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| 作者姓名： | 张岩 张景发 陈艳梅 孟娟 韩翠英 |
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| 作者单位： | 国土资源部天津产品质量监督检测中心,天津,300191 |
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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： | 试验了加速溶剂萃取土壤中有机氯农药和多氯联苯残留的最佳条件。结果表明,采用正己烷-丙酮混合溶剂(体积比1:1)为提取剂,萃取温度100℃,压力为10.3MPa;采用弗罗里硅土固相萃取柱对样品净化,毛细管柱分离,用配有电子捕获检测器的气相色谱进行检测,平均加标回收率为83.6%～109.0%,相对标准偏差(RSD,n=11)为1.11%～5.88%,检出限为0.69～1.85ng/g。方法简单、快捷、经济,适应于土壤中的有机氯农药和多氯联苯的测定。
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| 关 键 词： | 加速溶剂萃取 气相色谱法 土壤 有机氯农药 多氯联苯 |
| 收稿时间： | 2010/1/21 0:00:00 |
| 修稿时间： | 2010/6/13 0:00:00 |
Determination of Organochlorine Pesticides and Polychlorinated Biphenyls in Soils by Gas Chromatography with Accelerated Solvent Extraction |
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| ZHANG Yan,ZHANG Jing-f,CHEN Yan-mei,MENG Juan and HAN Cui-ying.Determination of Organochlorine Pesticides and Polychlorinated Biphenyls in Soils by Gas Chromatography with Accelerated Solvent Extraction[J].Rock and Mineral Analysis,2010,29(5):491-496. |
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| Authors: | ZHANG Yan ZHANG Jing-f CHEN Yan-mei MENG Juan and HAN Cui-ying |
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| Institution: | Tianjin Testing and Quality Supervision Center for Geological and Mineral Products, The Ministry of Land and Resources, Tianjin 300191, China;Tianjin Testing and Quality Supervision Center for Geological and Mineral Products, The Ministry of Land and Resources, Tianjin 300191, China;Tianjin Testing and Quality Supervision Center for Geological and Mineral Products, The Ministry of Land and Resources, Tianjin 300191, China;Tianjin Testing and Quality Supervision Center for Geological and Mineral Products, The Ministry of Land and Resources, Tianjin 300191, China;Tianjin Testing and Quality Supervision Center for Geological and Mineral Products, The Ministry of Land and Resources, Tianjin 300191, China |
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| Abstract: | The optimum extraction condition was studied for organochlorine pesticides and polychlorinated biphenyls in soils using accelerated solvent extraction (ASE).The sample was extracted with hexane/acetone (1:1,V/V) with extraction temperature of 100 ℃ and pressure of 10.3 MPa and cleaned up by solid phase extraction with Florisil column,followed by separation on a capillary column.The target organic pollutants were then quantitatively determined by gas chromatography using electron capture detection.The detection limits of the method was 0.69 ～ 1.85 ng/g and average recovery was 83.6% ～ 109.0% with precision of 1.11% ～ 5.88% RSD (n=11).The method is simple,efficient,economical and suitable for the analysis of organochlorine pesticides and polychlorinated biphenyls in soil samples. |
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| Keywords: | accelerated solvent extraction (ASE) gas chromatography soil organochlorine pesticides polychlorinated biphenyl |
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