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Determination of thallium in environmental samples by activation analysis with fast reactors neutrons

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Abstract

A procedure is described for the determination of thallium in coal fly ash by fast neutron activation analysis using the reaction203Tl/n, 2n/202Tl. A 31 h reactor irradiatioon under cadmium cover at a fast neutron flux of 3.05×1012 n.cm−2.s−1 is applied. The simple radiochemical separation involves a wet attack in acids followed by an extraction of Tl/III/into diisopropylether from 0.5M HBr. The radiochemical purity is sufficient for immediate γ-spectrometry. A value of 5.7±0.7 ppm is found in the NBS 1633a coal fly ash.

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Authors and Affiliations

  1. Instituut voor Nucleaire Wetenschappen, Rijksuniversiteit Gent, Proeftuinstraat 86, B-9000, Gent, Belgium

    A. de Ruck & R. Dams

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  1. A. de Ruck
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  2. R. Dams
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de Ruck, A., Dams, R. Determination of thallium in environmental samples by activation analysis with fast reactors neutrons. Journal of Radioanalytical and Nuclear Chemistry Letters 94, 87–94 (1985). https://doi.org/10.1007/BF02164606

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  • DOI: https://doi.org/10.1007/BF02164606

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