Journal
TALANTA
Volume 82, Issue 2, Pages 582-586Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2010.05.010
Keywords
Molybdenum; ET-AAS; BCR sequential extraction procedure; Soil sludge
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Funding
- Scientific Grant Agency of the Ministry of Education of the Slovak Republic [VEGA/1/2466/05, VEGA/1/0430/08]
- Slovak-German Scientific Project DAAD [13/2004]
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A modified three-step sequential extraction procedure proposed by the Commission of European Communities Bureau of Reference (BCR) was applied to certified reference materials of three different soil groups (rendzina, luvisol, and cambisol) and sewage sludge of different compositions originating from a municipal water treatment plant in order to assess potential mobility and the distribution of molybdenum in the resulting fractions. In the soils examined, molybdenum was present almost entirely in the mineral lattice, the content of molybdenum in the fractions of the studied reference materials of sludges was predominant in the fraction. represents Mo bound to organic matter and sulphide. The internal check of accuracy was performed on the results of the sequential extraction by comparing of the extractable amounts of molybdenum in the sequential procedure with the results of the pseudototal digestion of original samples. The recovery ranged from 96 to 101% and the precision (RSD) in the extracts was below 10%. (C) 2010 Elsevier B.V. All rights reserved.
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