A comparison between sediment metal fractions, obtained from sequential extraction and estimated from single extractions

被引：41
|
作者：
Tack, FMG
Vossius, HAH
Verloo, MG
机构：
[1] Lab. Analyt. Chem. Appl. E., University of Gent, B-9000 Gent
来源：
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY | 1996年 / 63卷 / 01期
关键词：
heavy metals; sequential extraction; fractionation; speciation; sediment;
D O I：
10.1080/03067319608039810
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
We compared the sequential extraction according to Tessier et al. with the results, obtained from single extractions employing reagents and reacting conditions similar-to these of the different Tessier steps. The aim was to investigate whether an approach involving fewer consecutive steps provides similar information as sequential extraction. The estimates of the exchangeable, acid extractable and reducible fractions from the single extraction data were in good agreement with the fractions obtained using sequential extraction. The oxidizable fraction should be determined by extraction of the residue of a hydroxylamine-hydrochloride extraction.
引用
收藏
页码：61 / 66
页数：6
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