Application of lead and strontium isotope ratio measurements for the origin assessment of uranium ore concentrates

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dc.contributor.authorVarga, Zen_AU
dc.contributor.authorWallenius, Men_AU
dc.contributor.authorMayer, Ken_AU
dc.contributor.authorKeegan, EAen_AU
dc.contributor.authorMillett, Sen_AU
dc.date.accessioned2010-04-09T01:05:07Zen_AU
dc.date.accessioned2010-04-30T05:08:19Zen_AU
dc.date.available2010-04-09T01:05:07Zen_AU
dc.date.available2010-04-30T05:08:19Zen_AU
dc.date.issued2009-10-15en_AU
dc.date.statistics2009-10-15en_AU
dc.description.abstractLead and strontium isotope ratios were used for the origin assessment of uranium ore concentrates (yellow cakes) for nuclear forensic purposes. A simple and low-background sample preparation method was developed for the simultaneous separation of the analytes followed by the measurement of the isotope ratios by multicollector inductively coupled plasma mass spectrometry (MC-ICPMS). The lead isotopic composition of the ore concentrates suggests applicability for the verification of the source of the nuclear material and by the use of the radiogenic 207Pb/206Pb ratio the age of the raw ore material can be calculated. However, during data interpretation, the relatively high variation of the lead isotopic composition within the mine site and the generally high contribution of natural lead as technological contamination have to be carefully taken into account. The 87Sr/86Sr isotope ratio is less prone to the variation within one mine site and less affected by the production process, thus it was found to be a more purposeful indicator for the origin assessment and source verification than the lead. The lead and strontium isotope ratios measured and the methodology developed provide information on the initial raw uranium ore used, and thus they can be used for source attribution of the uranium ore concentrates. © 2009, American Chemical Societyen_AU
dc.identifier.citationVarga, Z., Wallenius, M., Mayer, K., Keegan, E., & Millett, S. (2009). Application of lead and strontium isotope ratio measurements for the origin assessment of uranium ore concentrates. Analytical Chemistry, 81(20), 8327-8334. doi:/10.1021/ac901100een_AU
dc.identifier.govdoc1535en_AU
dc.identifier.issn0003-2700en_AU
dc.identifier.issue20en_AU
dc.identifier.journaltitleAnalytical Chemistryen_AU
dc.identifier.pagination8327-8334en_AU
dc.identifier.urihttp://dx.doi.org/10.1021/ac901100een_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/3131en_AU
dc.identifier.volume81en_AU
dc.language.isoenen_AU
dc.publisherAmerican Chemical Societyen_AU
dc.subjectLeaden_AU
dc.subjectStrontiumen_AU
dc.subjectUranium oresen_AU
dc.subjectIsotope ratioen_AU
dc.subjectMass spectroscopyen_AU
dc.subjectRaw materialsen_AU
dc.titleApplication of lead and strontium isotope ratio measurements for the origin assessment of uranium ore concentratesen_AU
dc.typeJournal Articleen_AU
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