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Determination of 226Ra in urine and water samples and sequential separation of 228Ra and 90Sr in drinking water

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Abstract

Among natural radionuclides, 226Ra and 228Ra intake can contribute considerably to radiological dose. Liquid scintillation counting offers a reliable and sensitive method for measurement in environmental (water) and biological (urine) matrices. While the determination of 226Ra in water is quite simple, its determination in urine requires a suitable radiochemical procedure. In both cases an indirect measurement of daughter 222Rn (with 218Po and 214Po) in secular equilibrium allows to determine 226Ra activity. Moreover, in presence of anthropogenic radionuclides, a sequential separation of 228Ra and 90Sr in water has been developed, isolating daughters 228Ac and 90Y in secular equilibrium in the same vial.

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Authors and Affiliations

  1. Integrated Laboratory of Radioactivity Measurement and Monitoring, Radiation Protection Institute of ENEA, Saluggia, Italy

    Sandro Ridone, Dolores Arginelli & Maria Chiara Botta

  2. Integrated Laboratory of Radioactivity Measurement and Monitoring, Radiation Protection Institute of ENEA, Bologna, Italy

    Paolo Battisti

  3. Integrated Laboratory of Radioactivity Measurement and Monitoring, Radiation Protection Institute of ENEA, Rotondella, Italy

    Salvatore Zicari

Authors
  1. Sandro Ridone
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  2. Dolores Arginelli
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  3. Paolo Battisti
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  4. Maria Chiara Botta
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  5. Salvatore Zicari
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Correspondence to Sandro Ridone.

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Ridone, S., Arginelli, D., Battisti, P. et al. Determination of 226Ra in urine and water samples and sequential separation of 228Ra and 90Sr in drinking water. J Radioanal Nucl Chem (2023). https://doi.org/10.1007/s10967-023-09273-w

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  • DOI: https://doi.org/10.1007/s10967-023-09273-w

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