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| 重金属污染土壤萃取方法选择及参数优化 | |
| 引用本文： | 李东艳,M.FRANCOIS,任玉芬,王长征.重金属污染土壤萃取方法选择及参数优化[J].地学前缘,2005,12(Z1):189-192. |
| 作者姓名： | 李东艳 M.FRANCOIS 任玉芬 王长征 |
| 作者单位： | 1. 河南理工大学,资源与环境工程系,河南,焦作,454003 2. Institut Sup(e)rieur d'Agriculture - Laboratoire Sols et Environnement,Lille,France 3. 中国科学院,生态环境研究中心系统生态重点实验室,北京,100085 |
| 基金项目： | 河南省自然科学基金;河南省高校青年骨干教师资助项目 |
| 摘 要： | 土壤重金属污染是国际土壤与环境研究的热点和难点问题之一。重金属在土壤中存在的形态和各种形态的比例是决定其迁移性和生态影响的关键因素。常用的形态分析方法包括Tessier五步萃取法、BCR三步萃取法和水萃取法等。在比较三种萃取方法的基础上,在法国北部冶炼厂周围土壤和焦作矿区土壤污染研究中采用水乙酸两步萃取法,采用蒸馏水和0 11 mol/L的乙酸,液固比20,25 ℃条件下恒温振荡16 h。 |
| 关 键 词： | 重金属 土壤 萃取方法 参数优化 |
| 文章编号： | 1005-2321(2005)S0-0189-04 |
| 修稿时间： | 2004年1月13日 |
Selection of extraction procedures and optimization of parameters for the determination of forms of heavy metals in soils |
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| LI Dong-yan,M.FRANCOIS,REN Yu-fen,WANG Chang-zheng.Selection of extraction procedures and optimization of parameters for the determination of forms of heavy metals in soils[J].Earth Science Frontiers,2005,12(Z1):189-192. | |
| Authors: | LI Dong-yan MFRANCOIS REN Yu-fen WANG Chang-zheng |
| Abstract: | The problem of soil contamination with heavy metals is of increasing interest worldwide. The mobility of trace metals and related ecological effects depend on their specific chemical forms or the ratio between different forms. Typical extraction procedures include the Tessier five-step procedure, BCR three-stage procedure and water-acetic procedure. Based on the comparison among these procedures, the water-acetic procedure was adopted to evaluate the mobility of heavy metals in Lille,France and in Jiaozuo, Middle China. Liquid-to-Solid Ratio was 20, and batch extractions were performed in a tube rotator device for 16 hours at 25 ℃. |
| Keywords: | heavy metal soil extraction procedure parameter optimization |
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