Liquid-liquid sandwich-transfer extraction: optimization and analytical use

T. Braun, A. B. Farag

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The feasibility of using liquid-liquid sandwich-transfer extraction methods as fast analytical tools was examined. The effect of surfactant, acid and base concentrations on the stability of the sandwich membrane was tested. The possibility of using this method in pre-concentration processes was investigated for chromium(VI). The rate of transfer extraction of radioactive 51Cr from aqueous sulphuric acid to sodium hydroxide solution was found to be rapid at reasonable concentrations (1%) of the sandwich reagent tri-n-octylamine.

Original languageEnglish
Pages (from-to)619-625
Number of pages7
JournalAnalytica Chimica Acta
Issue numberC
Publication statusPublished - Sep 1 1978


ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy

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