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Collaborative Study for Certification of Trace Elements in Uranium Ore Concentrate CRMs UCLO-1, UCHI-1, and UPER-1

2022; Springer Science+Business Media; Volume: 331; Issue: 9 Linguagem: Inglês

10.1007/s10967-022-08446-3

1588-2780

Kelly L. LeBlanc, Kenny Nadeau, Juris Meija, Lu Yang, Paola A. Babay, Marta A. Bavio, Carrie Boome, Don Chipley, Roxana S. Cristaldo Leguizamón, Joanna S. Denton, Dana L. Drew, Mauricio Fernández, V. Fugaru, Victoria D. Genetti, F. García de Blas González, Jeremy Inglis, Slobodan V. Jovanović, Elizabeth Keegan, Tara Kell, Yoshiki Kimura, William S. Kinman, Stephen Kiser, Rachel Lindvall, E. Loi, Klaus Mayer, Jean‐François Mercier, Robert P. Millar, Adrian Nicholl, L. V. Orlovskaya, José Luis Ramella, A. T. Serban, Michael A. Sharp, Youqing Shi, Csaba Tóbi, Lautaro Valenzuela, Zsolt Varga, Anna Vesterlund, Marian Vîrgolici, Hitoshi Yamazaki, Erica Zubillaga, Ali El‐Jaby, Zoltán Mester,

Radioactivity and Radon Measurements

Abstract Trace impurity patterns are important nuclear forensic signatures in uranium ore concentrates (UOCs) and Certified Reference Materials (CRMs) are used to validate the analysis methods employed by end users. Herein, we discuss the certification campaign for three new UOC CRMs from the National Research Council Canada: UCLO-1 ( https://doi.org/10.4224/crm.2020.uclo-1 ), UCHI-1 ( https://doi.org/10.4224/crm.2020.uchi-1 ), and UPER-1 ( https://doi.org/10.4224/crm.2020.uper-1 ). This study involved 15 laboratories from 10 countries, using sector-field and (triple) quadrupole inductively-coupled plasma mass spectrometry to analyze 64 trace element impurities. We discuss the importance of the acids used for sample digestion, difficulties analyzing in a high uranium matrix, and data combination and uncertainty evaluation for this large dataset.