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Spectrophotometric determination of plutonium III, IV, and VI concentrations in nitric acid solution

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Abstract

The determination of the concentration of various valency states of plutonium is desirable in various stages of the Plutonium/Uranium Recovery by EXtraction (PUREX) process for the effective separation and purification of plutonium. A method is optimized for the quantitative spectrophotometric determination of Pu(III), Pu(IV) and Pu(VI) existing separately or in mixed oxidation states in 1.5 M nitric acid medium. Molar absorption co-efficient (ε) for the major absorption peaks with baseline correction are evaluated. With these ε data a method is proposed for determining the molar concentration of each oxidation state.

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Acknowledgments

Authors express sincere thanks to Shri M. Venkataraman, Head, RPOD and Shri R. Natarajan, Director, RpG for their keen interest and constant encouragement throughout the work. The contribution of Satya Narayan Das and D.Jayanthi, of Chemical Lab, Reprocessing Group in preparing standards and other associated work is significant and greatly acknowledged.

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Authors and Affiliations

  1. Reprocessing Group, Indira Gandhi Centre For Atomic Research, Kalpakkam, 603102, India

    D. Jebaraj Mahildoss & T. N. Ravi

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  1. D. Jebaraj Mahildoss
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  2. T. N. Ravi
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Correspondence to D. Jebaraj Mahildoss.

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Jebaraj Mahildoss, D., Ravi, T.N. Spectrophotometric determination of plutonium III, IV, and VI concentrations in nitric acid solution. J Radioanal Nucl Chem 294, 87–91 (2012). https://doi.org/10.1007/s10967-012-1614-4

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  • DOI: https://doi.org/10.1007/s10967-012-1614-4

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