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The role of Cherenkov and liquid scintilation counting in evaluating the anion-exchange separation of210Pb−210Bi−210Po

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Abstract

Using as eluent a sequence of 3M HCl, 12M HCl, and 8M HNO3, a mixture of210Pb,210Bi, and210Po may be clearly separated on a column of Dowex 1×2−100 anion exchange resin. A Cherenkov count in H2O and the variation in count rate with time confirm that the nuclides emerge in the order210Pb→210Bi→210Po. If 12M HCl is replaced by 1.5M H2SO4/2.3 M Na2SO4, a clean separation also results, but recovery of210Po becomes considerably more difficult. All three nuclides are readily detectable by liquid scintillation counting, with the efficiency for210Pb in the 60–70% range. The Cherenkov aqueous counting efficiency for210Bi is ∼14–15%.

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  1. Department of Chemistry, Indiana University-Purdue University, Fort Wayne Campus, 46805, Fort Wayne, Indiana, (USA)

    R. A. Pacer

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  1. R. A. Pacer
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Pacer, R.A. The role of Cherenkov and liquid scintilation counting in evaluating the anion-exchange separation of210Pb−210Bi−210Po. J. Radioanal. Chem. 77, 19–28 (1983). https://doi.org/10.1007/BF02525349

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  • DOI: https://doi.org/10.1007/BF02525349

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