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

Autor: Wycoff DE; Department of Chemistry, University of Missouri, Columbia, MO 65211, United States., Gott MD; Department of Chemistry, University of Missouri, Columbia, MO 65211, United States., DeGraffenreid AJ; Department of Chemistry, University of Missouri, Columbia, MO 65211, United States., Morrow RP; Department of Chemistry, University of Missouri, Columbia, MO 65211, United States., Sisay N; Department of Chemistry, University of Missouri, Columbia, MO 65211, United States., Embree MF; University of Missouri Research Reactor Center, Columbia, MO 65211, United States., Ballard B; Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM 87545, United States., Fassbender ME; Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM 87545, United States., Cutler CS; University of Missouri Research Reactor Center, Columbia, MO 65211, United States., Ketring AR; University of Missouri Research Reactor Center, Columbia, MO 65211, United States., Jurisson SS; Department of Chemistry, University of Missouri, Columbia, MO 65211, United States. Electronic address: jurissons@missouri.edu.
Jazyk: angličtina
Zdroj: Journal of chromatography. A [J Chromatogr A] 2014 May 02; Vol. 1340, pp. 109-14. Date of Electronic Publication: 2014 Mar 16.
DOI: 10.1016/j.chroma.2014.03.033
Abstrakt: An anion exchange method was developed to separate selenium and arsenic for potential utility in a (72)Se/(72)As generator. The separation of the daughter (72)As from the (72)Se 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 SeO4(2-), while neutral arsenic acid, H3AsO4, is eluted.
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Databáze: MEDLINE
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