A novel strontium-selective extraction chromatographic resin

E. Philip Horwitz, Mark L. Dietz, Renato Chiarizia

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The effect of nitric acid concentration on the selectivity of a novel extraction chromatographic resin consisting of an octanol solution of 4,4'(5')-bis(t-butyl-cyclohexano)-18-crown-6 sorbed on an inert polymeric support for strontium over a number of alkali, alkaline earth, and other metal cations was evaluated. The effect of macro quantities of selected elements on strontium retention by the resin was also examined. The resin is shown to exhibit excellent selectivity for strontium over nearly all of the test elements; only Lead and tetravalent neptunium, polonium, and plutonium show significant affinity for the material. In addition, concentrations of calcium or sodium ion up to -0.1 M are shown not to diminish the sorption of strontium appreciably. Several useful radiochemical separation schemes devised on the basis of the results obtained are described. © 1992, Taylor & Francis Group, LLC. All rights reserved.
Original languageEnglish
Pages (from-to)313 - 336
Number of pages24
JournalSolvent Extraction and Ion Exchange
Issue number2
Publication statusPublished - 1 Apr 1992
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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