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Rapid measurements of neptunium oxidation states using chromatographic resins

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Abstract

The Savannah River Site’s (SRS) H-Canyon facility uses ceric ammonium nitrate (CAN) to separate impure neptunium (Np) from a nitric acid feed stream containing 0.5–1.0 M concentrations of iron, sodium and sulfate impurities. The material is processed using a two-pass solvent extraction purification which relies on CAN to oxidize Np to Np(VI) during the first pass prior to extraction. Spectrophotometric oxidation-state analyses normally used to validate successful oxidation to Np(VI) prior to extraction were compromised by this feed stream matrix. Therefore, a rapid chromatographic method to validate successful Np oxidation was developed using Eichrom Industries’ TRU and TEVA® resins. The method was validated and subsequently transferred to existing operations in the process analytical laboratories.

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References

  1. Yoshida Z, Johnson SG, Kimura T, Krsul JR (2006) In: Morss LR, Edelstein NM, Fuger J (eds) The chemistry of the actinide and transactinide elements, 3rd edn. Springer, Dordrecht, The Netherlands, p 699

    Google Scholar 

  2. Burney GA, Harbour RM (1974) The radiochemistry of neptunium. US Atomic Energy Commission,  

    Google Scholar 

  3. Kim K-W, Song K-C, Lee E-H, Choi I-K, Yoo J-H (2000) J Radioanal Nucl Chem 246:215–219

    Article  CAS  Google Scholar 

  4. Friedman HA, Toth LM (1980) J Inorg Nucl Chem 42:1347–1349

    Article  CAS  Google Scholar 

  5. Horwitz EP, Chiarizia R, Dietz ML, Diamond H, Nelson DM (1993) Anal Chim Acta 281:361–372

    Article  CAS  Google Scholar 

  6. Horwitz EP, Dietz ML, Chiarizia R, Diamond H, Maxwell SL, Nelson DM (1995) Anal Chim Acta 310:63–78

    Article  CAS  Google Scholar 

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Authors and Affiliations

  1. Savannah River National Laboratory, Aiken, SC, USA

    David P. DiPrete, Cecilia C. DiPrete, Edward A. Kyser & Mira A. Malek

Authors
  1. David P. DiPrete
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  2. Cecilia C. DiPrete
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  3. Edward A. Kyser
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  4. Mira A. Malek
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Correspondence to Edward A. Kyser.

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DiPrete, D.P., DiPrete, C.C., Kyser, E.A. et al. Rapid measurements of neptunium oxidation states using chromatographic resins. J Radioanal Nucl Chem 282, 581–584 (2009). https://doi.org/10.1007/s10967-009-0249-6

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  • DOI: https://doi.org/10.1007/s10967-009-0249-6

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