Document Detail

Fractionation of various elements in CRMs and in polluted soils.
MedLine Citation:
PMID:  14985915     Owner:  NLM     Status:  MEDLINE    
An optimised BCR three steps sequential extraction procedure (BCR SEP) and several single extractions with KCl, NH(4)Cl, Na(4)P(2)O(7) and 0.5 mol L(-1) HCl were used for the fractionation of Al, Cu, Fe, Mn, Pb and Zn in CRMs and in samples from a mining area with sulphidic deposits. A good interlaboratory comparability was obtained for Cu, Pb and Zn in CRM 483, CRM 701, SRM 2710 and SRM 2711 by BCR SEP. The reliability of the results obtained is also very satisfactory. Some differences were found between our results and the indicative data for Al and Fe fractionation. However, serious discrepancies were found for Mn, not only for individual steps of the fractionation, but for the data obtained overall (sum of 1-3 steps), and for the total concentration as well. Our results could be utilized as a contribution to the existing indicative values for CRM 483, SRM 2710 and SRM 2711 for interlaboratory study. Moreover, data for the fractionation of elements mentioned above for CRM 701 are first presented here.A high correlation between 0.5 mol L(-1) of HCl-extractable amounts of the elements studied, and the sum of the three steps of BCR SEP in acid sulphatic weathering products and naturally acidified soils was established, which allows us to suggest this rapid and cost-effective single extraction procedure as a valuable tool in contamination assessment.
J Kubová; V Stresko; M Bujdos; P Matús; J Medved'
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2004-02-20
Journal Detail:
Title:  Analytical and bioanalytical chemistry     Volume:  379     ISSN:  1618-2642     ISO Abbreviation:  Anal Bioanal Chem     Publication Date:  2004 May 
Date Detail:
Created Date:  2004-04-27     Completed Date:  2004-07-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  101134327     Medline TA:  Anal Bioanal Chem     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  108-14     Citation Subset:  IM    
Faculty of Natural Sciences, Comenius University Bratislava, Mlynská dolina, 84215 Bratislava, Slovakia.
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MeSH Terms
Chemical Fractionation
Environmental Pollutants / analysis*,  standards
Geologic Sediments / analysis*
Hydrochloric Acid
Metals, Heavy / analysis
Reference Standards
Reproducibility of Results
Soil / analysis*,  standards
Soil Pollutants / analysis,  standards
Spectrophotometry, Atomic / methods
Trace Elements / analysis
Reg. No./Substance:
0/Environmental Pollutants; 0/Metals, Heavy; 0/Soil; 0/Soil Pollutants; 0/Trace Elements; 7647-01-0/Hydrochloric Acid

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