Measurement of free heavy metal ion concentrations in soils using Donnan membrane technique

被引：0

作者：

易丽

洪业汤

翁丽萍

朱咏煊

机构：

[1] 6700 EC Wageningen

[2] Beijing 100039

[3] China

[4] Chinese Academy of Sciences

[5] Department of Environmental Science

[6] Graduate School

[7] Guiyang 550002

[8] Institute of Geochemistry

[9] P.O. Box 8005

[10] Sub-department of Soil Quality

[11] The Netherlands

[12] The State Key Laboratory of Environmental Geochemistry

[13] Wageningen University

来源：

Acta Geochimica | 2005年 / 02期

关键词：

soil; free heavy metal ion; Donnan Membrane Technique (DMT); improvement;

D O I：

暂无

中图分类号：

X53 [土壤污染及其防治];

学科分类号：

082803 ; 120405 ;

摘要：

In natural systems heavy metals are present in very low concentrations (less than micro-molar), so precise measurement of the free metal ions is difficult. Recently, a new method has been developed called the Donnan membrane technique (DMT). Several heavy metals could be measured simultaneously using this method. Furthermore, all the metals did not interfere with each other, and the balance between the measured system and the surrounding condition could not be disturbed. Improvements were made according to the internal condition. The free heavy metal ion concentrations were measured in different systems using the improved method, and satisfied results have been obtained.

引用

页码：184 / 188

页数：5

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