Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Accuracy in the isotope dilution mass spectrometry of uranium in rubidium uranium sulphate Rb[sub 2]U(SO[sub 4])[sub 3]

Journal Article · · Analytical Letters; (United States)
Problems encountered in the determination of uranium in rubidium uranium sulphate (Rb[sub 2]U(SO[sub 4])[sub 3]) employing isotope dilution thermal ionization mass spectrometry (ID-TIMS) are discussed. The positive bias of 0.2 to 0.3% in the determination of uranium in Rb[sub 2]U(SO[sub 4])[sub 3] by ID-TIMS with respect to the stoichiometric composition has been resolved by modifying the chemical exchange procedures. The concentration of uranium in Rb[sub 2]U(SO[sub 4])[sub 3] could be determined with an accuracy better than 0.1% employing the HClO[sub 4] treatment for proper isotopic exchange between the spike and sample isotopes. 12 refs., 1 fig., 5 tabs.
OSTI ID:
6460736
Journal Information:
Analytical Letters; (United States), Journal Name: Analytical Letters; (United States) Vol. 26:5; ISSN ANALBP; ISSN 0003-2719
Country of Publication:
United States
Language:
English