Abstract
Sequential separation methods are key for rapid determination of multiple radionuclides. Seven different activation and fission products were isolated by two different sized anion exchange columns after a UTEVA/ TRU double stack. First, a 6 mL column of AG1-x8 separated Cd, Zn, Co, and Ir. The Cd recoveries were quantitative, with a decontamination factor of 106 from 132Te, a fission product interferent. Next, a 2 mL AG1-x8 column further separated the Fe/Ga/Te fraction from the first column. Ascorbic acid was used to control redox conditions, allowing for separation of Fe, Ga, and Te. With the use of two anion exchange columns, seven elements can be rapidly separated from a mixed activation/ fission product sample.
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Acknowledgements
This work was sponsored by the Office of the Deputy Assistant Secretary of Defense for Nuclear Matters. We would like to thank the Radiological Processing Laboratory (RPL) service center at PNNL for gamma emission analysis data. PNNL is operated by Battelle for the U.S. Department of Energy (DOE) under Contract No. DE-AC05-76RL0-1830. PNNL draws on signature capabilities in chemistry, earth sciences, and data analytics to advance scientific discovery and create solutions to the nation's toughest challenges in energy resiliency and national security.
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Herman, S., Arrigo, L.M., Arnold, E. et al. Evaluation of AG1-x8 to separate radionuclides in an irradiated sample. J Radioanal Nucl Chem 331, 5107–5112 (2022). https://doi.org/10.1007/s10967-022-08601-w
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DOI: https://doi.org/10.1007/s10967-022-08601-w