Book Chapter

Membrane techniques

SD Kolev

Encyclopedia of Analytical Science | Published : 2019

Abstract

In most separation processes in chemical analysis based on liquid-liquid or solid-phase extraction, the analyte is first extracted from an aqueous medium into a condensed immiscible phase (solid or liquid). This is followed by analyte back-extraction into another aqueous phase for further processing. Separation based on the use of liquid membranes allows these two processes to be conducted simultaneously on the corresponding sides of the membrane thus simplifying the overall separation process and making it amenable to automation. At the same time liquid membrane-based separation processes provide similar or even better selectivity and enrichment factors compared to conventional extraction t..

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University of Melbourne Researchers

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