Simple assessment of the reactive aluminium in sediments |
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Authors: | Viera Vojteková J Nováková D Mackových |
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Institution: | 1.Department of Analytical Chemistry, Institute of Chemical Science,University P. J. ?afárik,Kosice,Slovakia |
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Abstract: | The mobility of aluminium in sediments was evaluated through a one-step extraction with a strong chelating agent. Single and
sequential extraction procedures for the extraction of Al were applied to four sediments from a polluted region. A single-step
extraction with 0.05 mol L−1 ethylenediaminetetraacetic acid (EDTA) was used, and compared with a standardized SEP as reference. The Al contents extracted
into Na2EDTA were in good agreement with the sequential extraction that yeilds mobile and potentially mobile portion of Al. Extracted
EDTA contents make up more than 70% of the first-three-step sum of the five-step extraction procedure. Thus, Na2EDTA extraction of Al could be applied to assess aluminium mobility changes in sediments and soils. |
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