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Determination of radium by radon emanation after EDTA-mediated sample dissolution

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Abstract

The applicability of radon emanation to determine radium levels in (TE)NORM after EDTA-mediated sample dissolution has been investigated by means of a closed recirculating air loop radon monitoring system. Regarding radium determination in gypsum samples after EDTA-mediated dissolution the method presents excellent linearity (up to 2000 mBq), good resolution (75 mBq g−1) and detection limits (40 mBq g−1). The radioanalytical method presented here has been successfully applied to phosphogypsum samples and the radium levels obtained have been validated with gamma-spectroscopy. Evaluation of the experimental data indicate the robustness, selectivity and cost-effectiveness of this alternative radium analysis approach.

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Authors and Affiliations

  1. Department of Chemistry, University of Cyprus, P.O. Box 20537, 1678, Nicosia, Cyprus

    Ioanna Liatsou & Ioannis Pashalidis

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  1. Ioanna Liatsou
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  2. Ioannis Pashalidis
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Correspondence to Ioannis Pashalidis.

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Liatsou, I., Pashalidis, I. Determination of radium by radon emanation after EDTA-mediated sample dissolution. J Radioanal Nucl Chem 306, 445–449 (2015). https://doi.org/10.1007/s10967-015-4095-4

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  • DOI: https://doi.org/10.1007/s10967-015-4095-4

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