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Preparation and certification of the uranium nitrate solution reference materials series IRMM-2019 to IRMM-2029 for the isotopic composition

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Abstract

The IRMM-2019-2029 series of uranium nitrate solutions was certified for the isotopic composition. The solutions were originally prepared for the certification of the IRMM-019-029 series of uranium hexafluoride (UF6) materials in 2014, for which certification measurements were performed by thermal ionization mass spectrometry after conversion of UF6 into uranyl nitrate solutions. Analyses were performed using the modified total evaporation method and for some materials with low 236U abundances, the n(235U)/n(238U) ratio was measured using a n(233U)/n(236U) double spike. The integrity of the certified values after dilution and ampouling of the original solutions was checked through process control measurements.

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Acknowledgements

The authors would like to thank the experts of the Certification Advisory Panel (CAP), Steven Balsley and Sergei Boulyga (International Atomic Energy Agency, IAEA, Vienna, Austria), and Marielle Crozet (“Commissariat à l’Energie Atomique et aux Energies Alternatives” (CEA)/“Commission d’ETablissement des Méthodes d’Analyses” (CETAMA)) for their constructive comments on the certification project.

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Authors and Affiliations

  1. Joint Research Centre (JRC), Directorate G – Nuclear Safety and Security, Unit G.2 - Standards for Nuclear Safety, Security and Safeguards, European Commission, Retieseweg 111, 2440, Geel, Belgium

    S. Richter, C. Venchiarutti, C. Hennessy, U. Jacobsson, R. Bujak, J. Truyens & Y. Aregbe

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  1. S. Richter
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  2. C. Venchiarutti
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  3. C. Hennessy
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  4. U. Jacobsson
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  5. R. Bujak
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  6. J. Truyens
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  7. Y. Aregbe
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Correspondence to S. Richter.

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Richter, S., Venchiarutti, C., Hennessy, C. et al. Preparation and certification of the uranium nitrate solution reference materials series IRMM-2019 to IRMM-2029 for the isotopic composition. J Radioanal Nucl Chem 318, 1359–1368 (2018). https://doi.org/10.1007/s10967-018-6166-9

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  • DOI: https://doi.org/10.1007/s10967-018-6166-9

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