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Extraction of 197mHg with TIBPS in HNO3 and HCl media

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Abstract

The extraction of no carrier added mercury by tri-isobutyl phosphine sulfide (TIBPS) was characterized in HCl and HNO3 media. The extraction of 197mHg as a function of acid concentration was similar in both acids over a large acid concentration (0.001 M to conc.) with high extraction (D ~ 1000) at low concentrations and decreasing extraction for higher concentrations (≥ 4 M). The kinetics of extraction were rapid (~ 5 min.) in both acids. Speciation experiments indicated that the extraction mechanism is 1:2 (197mHg:TIBPS) in HCl and 1:1 in HNO3.

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Acknowledgements

The authors would like to thank the CAMS facility staff at LLNL, particularly Scott Tumey, for providing beam time and expertise for 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-003.

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Authors and Affiliations

  1. Lawrence Livermore National Laboratory, Nuclear and Chemical Sciences Division, Livermore, CA, USA

    Kelly N. Kmak, Carlos A. Valdez, Deon S. Anex & John D. Despotopulos

  2. Lawrence Livermore National Laboratory, Forensic Science Center, Livermore, CA, USA

    Carlos A. Valdez & Deon S. Anex

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  1. Kelly N. Kmak
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  2. Carlos A. Valdez
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  3. Deon S. Anex
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  4. John D. Despotopulos
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Correspondence to Kelly N. Kmak.

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Kmak, K.N., Valdez, C.A., Anex, D.S. et al. Extraction of 197mHg with TIBPS in HNO3 and HCl media. J Radioanal Nucl Chem 331, 1629–1634 (2022). https://doi.org/10.1007/s10967-022-08228-x

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  • DOI: https://doi.org/10.1007/s10967-022-08228-x

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