| 温和溶剂提取预测土壤中多环芳烃的生物有效性 |
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| 引用本文： | 吕正勇,杨兴伦,王芳,张银萍,蒋新.温和溶剂提取预测土壤中多环芳烃的生物有效性[J].环境科学,2011,32(8):2462-2469. |
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| 作者姓名： | 吕正勇 杨兴伦 王芳 张银萍 蒋新 |
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| 作者单位： | 1. 中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室,南京210008 中国科学院研究生院,北京100049
2. 中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室,南京,210008 |
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| 基金项目： | 国家高技术研究发展计划（863）项目（2007AA061101）；中国科学院知识创新工程领域前沿项目（ISSASIP0714）；江苏省自然科学基金项目（BK2008497）；国家自然科学基金项目（40801117） |
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| 摘 要： | 利用正丁醇和羟丙基-β-环糊精（hydroxypropyl-β-cyclodextrin,HPCD）提取来自9个农田土壤中的多环芳烃（polycyclicaromatic hydrocarbons,PAHs）,并应用于评价场地多年老化土壤中PAHs对赤子爱胜蚯蚓（Eisenia fetida）的生物有效性.结果表明,对...
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| 关 键 词： | 多环芳烃 生物有效性 温和溶剂 生物蓄积 正丁醇 羟丙基-β-环糊精 |
| 收稿时间： | 8/9/2010 12:00:00 AM |
| 修稿时间： | 2010/12/5 0:00:00 |
Mild Solvent Extraction Technique for the Evaluation of PAHs Bioavailability |
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| Lü Zheng-Yong,Yang Xing-Lun,Wang Fang,Zhang Yin-Ping,Jiang Xin.Mild Solvent Extraction Technique for the Evaluation of PAHs Bioavailability[J].Chinese Journal of Environmental Science,2011,32(8):2462-2469. |
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| Authors: | Lü Zheng-Yong Yang Xing-Lun Wang Fang Zhang Yin-Ping Jiang Xin |
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| Institution: | State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China. |
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| Abstract: | n-butanol and hydroxypropyl-beta-cyclodextrin (HPCD) were used to extract polyclic aromatic hydrocarbons from 9 aged agricultural fields and to assess the PAHs bioavailability to earthworm (Eisenia fetida). It was demonstrated that the high molecular weight (HMW) PAHs (> or = 4 rings) contribute the largest proportions (4-ring PAHs: 34.06%, 5-6 rings: 34.09%) to the contaminants in long-term aged field soils. Moreover, the light molecular weight PAHs were easily accumulated in the earthworm,while the high molecular weight PAHs were hard to accumulate. The extraction by mild solvent correlated well with the 3 ring PAHs (r2 0.77-0.79) but not for the other rings PAHs (r2 <0.35), indicating that mild extraction may not serve as a good predictor of PAHs bioavailability to earthworm. |
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| Keywords: | PAHs bioavailability mild solvent bioaccumulation n-butanol hydroxypropyl-β-cyclodextrin（HPCD） |
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