A new method of evaluation of element pollutant mobility in sediments

Vojteková, Viera, Nováková, Jarmila, Mackových, Daniela and Blašková, Jana A new method of evaluation of element pollutant mobility in sediments Chemical Papers, Vol.62, No. 2, 2008, 160-167

Document type: Článok z časopisu / Journal Article
Collection: Chemical papers  

Author(s) Vojteková, Viera
Nováková, Jarmila
Mackových, Daniela
Blašková, Jana
Title A new method of evaluation of element pollutant mobility in sediments
Journal name Chemical Papers
Publication date 2008
Year available 2008
Volume number 62
Issue number 2
ISSN 0366-6352
Start page 160
End page 167
Place of publication Poland
Publisher Versita
Collection year 2008
Language english
Subject 250000 Chemical Sciences
250400 Analytical Chemistry
Abstract/Summary The application of a strong chelating agent for the screening test of element mobility in sedimentary systems was investigated. Single-step and sequential extraction procedures were applied to four sediment samples collected from an industrially polluted region of Eastern Slovakia. A sequential extraction procedure (SEP), recommended by the Institute for Reference Materials and Measurements (IRMM), was applied and used as a reference extraction method. A single-step extraction with 0.05 mol dm−3 ethylenediaminetetraacetic acid (EDTA) was adapted for sediments when extraction conditions were optimised. The extraction efficiency of the single-step procedure was compared with that of SEP. The contents of elements extracted by Na2EDTA were in good agreement with the sum of the first three steps of the SEP for Fe, Mn, and Co. Na2EDTA can therefore be considered capable to extract the majority of elements associated with the reducible sedimentary phase — bound to Fe and Mn oxides in the regional geological conditions of the monitored region. Thus, Na2EDTA extraction of Fe and Mn can serve as an economical, time-saving supplementary test for the IRMM procedure.
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Created: Thu, 18 Mar 2010, 10:02:38 CET by Iveta Drtilová . Detailed History