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- Title
A chromatography chemistry for purifying Pa from U-Nb metal alloys.
- Authors
Engel, John R.; Denton, Joanna S.; Lamont, Stephen P.; Buettner, Jacob E.; Chen, Christine Y.; Steiner, Robert E.; Kayzar-Boggs, Theresa M.
- Abstract
We present a chromatography chemistry for purifying protactinium from uranium metal alloys containing weight-percent concentrations of niobium. Niobium is precipitated in 9 M HCl without the co-precipitation of Pa as demonstrated by gamma-ray spectrometry. Protactinium is further purified using Bio-Rad™ anion resin AG® 1-X8 and 9 M HCl + 0.0128 M HF. A Pa/Nb separation factor of 85,000 and a 90% Pa recovery is demonstrated, which is amenable to 231Pa concentration determination by isotope dilution and 231Pa/235U model age calculation for nuclear forensics.
- Subjects
ALLOYS; URANIUM alloys; CHROMATOGRAPHIC analysis; NIOBIUM; URANIUM; ISOTOPE dilution analysis; DILUTION; GAMMA ray spectrometry
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2023, Vol 332, Issue 2, p369
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-022-08747-7