A new, rapid method for isolating no-carrier-added 197m,gHg from proton irradiated Au foils has been developed based on a commercially available crown ether-containing extraction chromatography resin, Eichrom Pb resin. The separation procedure allows for loading Au dissolved in Aqua Regia directly onto a pre-packed Pb resin column. Under these conditions Hg passes through the column and is isolated with a high separation factor from the Au target material, which is strongly retained on the resin.
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The authors would like to thank the CAMS facility staff at LLNL, specifically Scott Tumey, 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 19-ERD-03, as well as by the LLNL Livermore Graduate Scholar Program.
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Despotopulos, J.D., Kmak, K.N. Rapid isolation of 197m,gHg from proton irradiated Au foils. J Radioanal Nucl Chem 327, 1349–1354 (2021). https://doi.org/10.1007/s10967-021-07609-y
- Extraction chromatography