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  • 1 Chemical & Isotope Mass Spectrometry Group Transuranium Research Institute, Chemical Sciences Division, Oak Ridge National Laboratory P.O. Box 2008 Oak Ridge TN 37831-6375 USA
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The analysis of impurities in uranium matrices is performed in a variety of fields, e.g., for quality control in the production stream converting uranium ores to fuels, as element signatures in nuclear forensics and safeguards, and for non-proliferation control. We have investigated the capabilities of time-of-flight ICP-MS for the analysis of impurities in uranium matrices using a matrix-matched method. The method was applied to the New Brunswick Laboratory CRM 124(1–7) series. For the seven certified reference materials, an overall precision and accuracy of approximately 5% and 14%, respectively, were obtained for 18 analyzed elements.