Uranium assay and trace element analysis of the fourth collaborative material exercise samples by the modified Davies-Gray method and the ICP-MS/OES techniques

Autor: Aubrey N. Nelwamondo, Lav Tandon, Petra Lagerkvist, Boon Kin Pong, Ning Xu, Anna Vesterlund, Zsolt Varga, Rachel E. Lindvall, Lisa P. Colletti, Henrik Ramebäck, Victoria Genetti, Maria Wallenius, Angela Hiong Jun Tan, G. R. Eppich, Banyana L. Kokwane, Gert Rasmussen
Rok vydání: 2018
Předmět:
Zdroj: Journal of Radioanalytical and Nuclear Chemistry. 315:379-394
ISSN: 1588-2780
0236-5731
DOI: 10.1007/s10967-018-5708-5
Popis: An international group of laboratories participating in CMX-4 subjected three samples to comparative nuclear forensic analysis using uranium assay and trace element analysis techniques to determine if the samples had similar or different origins. Uranium assay indicated that two pellet samples (ES-2 and ES-3) were nearly pure UO2 while the black powder sample ES-1 was primarily UO2 with UO3 and/or U3O8 forms present as impurities. Trace element analysis by five of the six participating laboratories reported molybdenum concentrations below 10 µg/g U in all of the exercise samples, suggesting the same likely facility of origin for all three samples.
Databáze: OpenAIRE
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