Sulfinylcalix[4]arene-impregnated Amberlite XAD-7 resin for the separation of niobium(V) from tantalum(V)

Hiroaki Matsumiya, Shizu Yasuno, Nobuhiko Iki, Sotaro Miyano

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)

Abstract

Amberlite XAD-7 resin was impregnated with p-tert-butylsulfinylcalix[4] arene. Niobium(V) was collected on the impregnated resin in yields of more than 90% around pH 5.4, whereas tantalum(V) was negligibly collected. The collected niobium(V) was desorbed with 9 M sulfuric acid nearly quantitatively, hence the separation of niobium(V) from tantalum(V) was successfully achieved.

Original languageEnglish
Pages (from-to)197-200
Number of pages4
JournalJournal of Chromatography A
Volume1090
Issue number1-2
DOIs
Publication statusPublished - 2005 Oct 7

Keywords

  • Amberlite XAD resin
  • Calixarene
  • Chelating reagent-impregnated sorbent
  • Niobium
  • Separation
  • Tantalum

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Organic Chemistry

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