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Developing and evaluating di(2-ethylhexyl) orthophosphoric acid (HDEHP) based polymer ligand film (PLF) for plutonium extraction

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Abstract

A method was developed to produce a thin Polymer Ligand Film (PLF) using di(2-ethylhexyl) orthophosphoric acid (HDEHP) ligand for rapid extraction of plutonium. Ligands were incorporated into a polystyrene matrix to generate a smooth and durable surface for analyte extraction. PLFs were prepared with varying amount of ligands to find the optimimum ratio between the ligands and polymer structure to give best plutonium recovery. Also, the plutonium extraction is dependent on the concentration of nitric solution. This dependency was examined in the manuscript. The PLF samples were counted directly using alpha spectroscopy without any further chemical process to test the plutonium recovery. The alpha spectroscopy data shows that HDEHP based PLFs were effective in extracting plutonium from nitric acid solution. The surface characterization was performed with a scanning electron microscope (SEM) and digital autoradiography for defect examination of the PLF and plutonium distribution study, respectively.

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Acknowledgments

This research was performed with the support of the US Departments of Energy Office of Nuclear Nonproliferation Research and Development and US Department of Defense’s Defense Threat Reduction Agency. The authors also gratefully acknowledge the support from the Nuclear Forensics Graduate Fellowship Program which is sponsored by the US Department of Homeland Security’s Domestic Nuclear Detection Office and the US Department of Defense’s Defense Threat Reduction Agency. Los Alamos National Laboratory is operated by Los Alamos National Security, LLC for the US Department of Energy under contract number DE-AC52-06NA25396. This document had been reviewed and assigned publication number: LA-UR-12-21562.

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Authors and Affiliations

  1. Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, University Park, PA, 16802, USA

    J. H. Rim & K. Ünlü

  2. Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA

    J. H. Rim & D. S. Peterson

  3. Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM, 87545, USA

    E. R. Gonzales & C. E. Armenta

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  1. J. H. Rim
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  2. E. R. Gonzales
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  3. C. E. Armenta
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  4. K. Ünlü
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  5. D. S. Peterson
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Correspondence to D. S. Peterson.

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Rim, J.H., Gonzales, E.R., Armenta, C.E. et al. Developing and evaluating di(2-ethylhexyl) orthophosphoric acid (HDEHP) based polymer ligand film (PLF) for plutonium extraction. J Radioanal Nucl Chem 296, 1099–1103 (2013). https://doi.org/10.1007/s10967-012-2266-0

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  • DOI: https://doi.org/10.1007/s10967-012-2266-0

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