| 比较四种提取技术分析沉积物中滴滴涕同系物 |
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| 作者姓名： | LANG Yin-Hai JIANG Xin D. MARTENS ZHAO Qi-Guo |
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| 作者单位： | [1]College of Environmental Science and Engineering, Ocean University of China, Qingdao 266003 （China） [2]Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008 （China） [3]Institute of Ecological Chemistry, GSF-National Research Center for Environment and HeaLth, Neuherberg 85764（Germany） |
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| 基金项目： | Project supported by the 0utstanding Youth Fund of the National Natural Science Foundation of China （No. 40325001）, the National Key Basic Research and Development Program of China （No. 2002CB410805） and the 0cean University of China. |
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| 摘 要： | Four techniques, Soxhlet extraction （SOX）, ultrasonic extraction （USE）, fluidized-bed extraction （FBE） and accelerated solvent extraction （ASE） with different solvents （methanol, hexane/acetone and acetonitrile） were used for the extraction of DDT analogues in sediments. Results revealed that the four extraction techniques had high recoveries （〉 86.0%） with low standard deviations （〈 12.0%） for most of DDT analogues, meaning that they could all successfully extract DDT analogues in sediments. Accelerated solvent extraction using methanol and hexane/acetone （1：1）, fluidized-bed extraction using hexane/acetone （1：1） and the ultrasonic extraction using hexane/acetone （1：1） were comparable or better than Soxhlet extraction using hexane/acetone （1：1）. Considering solvent- and time-consumption, level of automation, and environmental risk, accelerated solvent extraction with hexane/acetone （1：1） was better than the other extraction techniques.
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| 关 键 词： | DDT 沉淀物 SOX 萃取工艺 土壤 |
| 收稿时间： | 2005-02-28 |
| 修稿时间： | 2005-07-06 |
Comparison of extraction techniques with different solvents for DDT analogues in sediments |
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| LANG Yin-Hai,JIANG Xin,D. MARTENS,ZHAO Qi-Guo.Comparison of extraction techniques with different solvents for DDT analogues in sediments[J].Pedosphere,2005,15(5):628-633. |
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| Authors: | LANG Yin-Hai JIANG Xin D MARTENS and ZHAO Qi-Guo |
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| Institution: | College of Environmental Science and Engineering, Ocean University of China, Qingdao 266003 (China). E-mail: yhlang@ouc.edu.cn;Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008 (China);Institute of Ecological Chemistry, GSF-National Research Center for Environment and Health, Neuherberg 85764 (Germany);Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008 (China) |
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| Abstract: | Four techniques, Soxhlet extraction (SOX), ultrasonic extraction (USE), fluidized-bed extraction (FBE) and accelerated solvent extraction (ASE) with different solvents (methanol, hexane/acetone and acetonitrile) were used for the extraction of DDT analogues in sediments. Results revealed that the four extraction techniques had high recoveries (> 86.0%) with low standard deviations (< 12.0%) for most of DDT analogues, meaning that they could all successfully extract DDT analogues in sediments. Accelerated solvent extraction using methanol and hexane/acetone (1:1), fluidized-bed extraction using hexane/acetone (1:1) and the ultrasonic extraction using hexane/acetone (1:1) were comparable or better than Soxhlet extraction using hexane/acetone (1:1). Considering solvent- and time-consumption, level of automation, and environmental risk, accelerated solvent extraction with hexane/acetone (1:1) was better than the other extraction techniques. |
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| Keywords: | DDT analogues extraction techniques sediment solvents |
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