Chromatographic separation of selenium and arsenic: A potential 72Se/72As generator

  • Donald E. Wycoff
  • , Matthew D. Gott
  • , Anthony J. DeGraffenreid
  • , Ryan P. Morrow
  • , Nebiat Sisay
  • , Mary F. Embree
  • , Beau Ballard
  • , Michael E. Fassbender
  • , Cathy S. Cutler
  • , Alan R. Ketring
  • , Silvia S. Jurisson

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

An anion exchange method was developed to separate selenium and arsenic for potential utility in a 72Se/72As generator. The separation of the daughter 72As from the 72Se parent is based on the relative acid-base behavior of the two oxo-anions in their highest oxidation states. At pH 1.5, selenate is retained on strongly basic anion exchange resin as HSeO4- and SeO42-, while neutral arsenic acid, H3AsO4, is eluted.

Original languageEnglish
Pages (from-to)109-114
Number of pages6
JournalJournal of Chromatography A
Volume1340
DOIs
StatePublished - May 2 2014
Externally publishedYes

Funding

The authors acknowledge support from the Department of Energy, Office of Basic Energy Sciences, Isotope Research program under Grant No. DE-SC0003851, and trainee support from the National Science Foundation under IGERT award DGE-0965983 (M.D. Gott) and NIBIB Training Grant NIBIB 5 T32 EB004822 (A.J. DeGraffenreid). The 72 Se production was funded by the United States Department of Energy, Office of Science via an award from the Isotope Development and Production for Research and Applications subprogram in the Office of Nuclear Physics.

Keywords

  • As-72
  • Ion exchange
  • Radionuclide generator
  • Se-72

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