A New Sequential Extraction Procedure for the Speciation of Particulate Trace Elements in River Sediments

In order to study the bioavailable fraction of river sediments, an analytical procedure involving sequential chemical extraction (soluble with water, really exchangeable, bound to carbonates, manga- nese oxides, amorphous iron oxides, crystalline iron oxides and to organic matter) has been developed...

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Bibliographic Details
Published inInternational journal of environmental analytical chemistry Vol. 73; no. 2; pp. 109 - 128
Main Authors Leleyter, Lydia, Probst, Jean-Luc
Format Journal Article
LanguageEnglish
Published Amsterdam Taylor & Francis Group 01.02.1999
Gordon and Breach Science
Subjects
Analysis methods
Analytical chemistry
Applied sciences
bioavailability
Chemistry
Exact sciences and technology
Pollution
river sediments
Sequential extraction
Soil and sediments pollution
speciation
Spectrometric and optical methods
Trace analysis
Chemical analysis
Sequential extraction
Review
Bioavailability
Soil pollution
Inductive coupling plasma spectrometry
Sediments
Inorganic element
Environmental control
Chemical enrichment
Emission spectrometry
Multicomponent analysis
Mass spectrometry
Speciation
Atomic absorption spectrometry
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Summary:In order to study the bioavailable fraction of river sediments, an analytical procedure involving sequential chemical extraction (soluble with water, really exchangeable, bound to carbonates, manga- nese oxides, amorphous iron oxides, crystalline iron oxides and to organic matter) has been developed for the speciation of: Si, Ca, Fe, K, Mn, Al, Co, Rb, Sr, Y, Sb, Cs, Pb, U, Th and the lanthanides. Experimental results obtained on replicate samples of river bottom sediments demonstrate that the relative standard deviation of the sequential extraction procedure is very low. The selectivity, the efficiency and the purity of the various reagents toward specific geochemical phases were evaluated and optimized on each individual extraction.
ISSN:0306-7319
1029-0397
DOI:10.1080/03067319908032656