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The determination of chromium in water samples by neutron activation analysis after preconcentration on activated carbon

  • Environmental and Ecological Applications
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Abstract

A method is presented for the determination of chromium in sea-and fresh water. Chromium is concentrated on activated carbon from neutral solution after a previous reduction of chromate with sodium sulfite at pH 1.5. The final determination of the total chromium content is performed by instrumental neutron activation analysis. By preconcentration on activated carbon a differentiation between tervalent and hexavalent chromium is possible. A separate determination of both species is not yet feasible due to the high carbon blank and to the necessity of measuring the adsorption percentage on carbon. The lower limit of determination, which depends on the value of the carbon blank, is 0.05 μg Cr·1−1 with a precision of 20%.

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Authors and Affiliations

  1. Reactor Centrum Nederland, Westerduinweg 3, Petten (N. H.), The Netherlands

    H. A. Van Der Sloot

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  1. H. A. Van Der Sloot
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Van Der Sloot, H.A. The determination of chromium in water samples by neutron activation analysis after preconcentration on activated carbon. J. Radioanal. Chem. 37, 727–739 (1977). https://doi.org/10.1007/BF02519385

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  • DOI: https://doi.org/10.1007/BF02519385

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