Speciation of heavy metals in soils, sediments, and sludges using dc plasma atomic emission spectrometry coupled with ion chromatography

被引:14
作者
Urasa, IT
Macha, SF
机构
[1] Department of Chemsitry, Hampton University, Hampton
关键词
metals speciation; dc plasma atomic emission spectrometry; ion chromatography; element selective detector;
D O I
10.1080/03067319608028338
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
An analytical method has been developed that can provide more reliable analytical information than the classical fractionation method which has been used by soil scientists for years to determine heavy metal contents of soil, sediment, and sludge samples. The new approach utilizes d.c. plasma atomic emission spectrometry in combination with ion chromatography (DCPAES-IC), whereby the DCPAES provides element selective measurements of the chromatographic effluents. In this way, the combined analytical system provides information on all the species of a metal present in the different steps of the fractionation approach. The DCPAES-IC approach also addresses questions pertaining to completeness of extraction, interference, and reagent concentration effects.
引用
收藏
页码:83 / 95
页数:13
相关论文
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