| 加速溶剂萃取-气相色谱法测定土壤中有机氯农药残留 |
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| 引用本文： | 高芸,朱晓兰,林辉,杨艳. 加速溶剂萃取-气相色谱法测定土壤中有机氯农药残留[J]. 安徽农业科学, 2006, 34(8): 1625-1626 |
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| 作者姓名： | 高芸 朱晓兰 林辉 杨艳 |
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| 作者单位： | 中国科学技术大学烟草研究中心,安徽,合肥,230052 |
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| 基金项目： | 国家烟草专卖局资助项目 |
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| 摘 要： | 研究了加速溶剂萃取仪提取土壤中有机氯农药残留的最佳条件。研究表明,采用正己烷和丙酮(1:1V/V)的混合溶剂为提取剂,萃取温度40℃,压力为10.3MPa;该方法无需对样品净化,样品经提取、浓缩后,以大口径毛细管柱为分离柱,GC-ECD检测,内标法定量;方法简单、快捷、经济,平均加标回收率为79.4%～102.1%,RSD为2.34%～5.72%,检测限为0.041～0.133ng/g。
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| 关 键 词： | 加速溶剂萃取 气相色谱 土壤 有机氯农药 |
| 文章编号： | 0517-6611（2006）08-1625-02 |
| 收稿时间： | 2005-09-22 |
| 修稿时间： | 2005-09-22 |
Analysis of Organochlorine Pesticides in Soil by Accelerated Solvent Extraction/GC |
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| GAO Yun et al. Analysis of Organochlorine Pesticides in Soil by Accelerated Solvent Extraction/GC[J]. Journal of Anhui Agricultural Sciences, 2006, 34(8): 1625-1626 |
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| Authors: | GAO Yun et al |
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| Abstract: | The optimum extraction condition was studied for organochlorine pesticides in soil using accelerated solvent extraction (ASE). The sample was extracted with hexane-acetone (1∶1,V/V). The temperature of extract was 40 ℃,and the pressure was 10.3 MPa . The sample didn't need to clean-up. Organochlorine pesticides in sample were extracted using ASE and concentrated. Then it was determinated by wide-bore capillary(DB-5,30 m×0.53 mm×1.5 μm) gas chromatography with electron capture detector,and quantified by internal standard method. This method was simple,fast and economical. Recovery ranged between 79.4 %~102.1 % and the relative standard deviation was between 2.34 %～5.72 %. The limit detection was 0.041～0.133 ng/g. |
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| Keywords: | Accelerated solvent extraction(ASE) GC Soil Organochlorine pesticides |
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