Abstract
A crown-ether-based extraction chromatography resin, Eichrom Pb resin, was characterized for separations of flerovium (Fl) homologs, specifically Pb and Sn. The batch uptake of Pb(II) and Sn(IV) radionuclides was determined from an HCl matrix. Both Pb(II) and Sn(IV) are strongly retained on the resin at different HCl concentrations. The affinity for Pb(II) decreases with increasing HCl concentration while Sn(IV) uptake increases. Extraction kinetics for Pb(II) and Sn(IV) were examined and show suitable uptake on the second time scale. Separation methods for the isolation of individual homologs, Pb(II) and Sn(IV), have been established using 2 mL pre-packed vacuum flow Pb resin columns.
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Acknowledgments
The authors would like to thank the CAMS facility staff at LLNL, specifically Scott Tumey, Thomas Brown and Graham Bench for providing beam time and expertise to the production of radionuclides used in this study. This study was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. This work was funded by the Laboratory Directed Research and Development Program at LLNL under project tracking code 11-ERD-011, as well as by the LLNL Livermore Graduate Scholar Program.
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Despotopulos, J.D., Kmak, K.N., Gharibyan, N. et al. Characterization of the homologs of flerovium with crown ether based extraction chromatography resins: studies in hydrochloric acid. J Radioanal Nucl Chem 310, 1201–1207 (2016). https://doi.org/10.1007/s10967-016-4917-z
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DOI: https://doi.org/10.1007/s10967-016-4917-z