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Pollington, Anthony D.; Kinman, William S.; Hanson, Susan K.; Steiner, Robert E.
Journal of radioanalytical and nuclear chemistry, 03/2016, Letnik: 307, Številka: 3Journal Article
Modern mass spectrometry and separation techniques have made measurement of major uranium isotope ratios a routine task; however accurate and precise measurement of the minor uranium isotopes remains a challenge as sample size decreases. One particular challenge is the presence of isobaric interferences and their impact on the accuracy of minor isotope 234 U and 236 U measurements. We present techniques used for routine U isotopic analysis of environmental nuclear safeguards samples and evaluate polyatomic interferences that negatively impact accuracy as well as methods to mitigate their impacts.
