European Journal of Biomedical and Pharmaceutical Sciences

ELECTROEXTRACTION AND ELECTRO MEMBRANE EXTRACTION, ADVANCES IN HYPHENATION TO ANALYTICAL TECHNIQUES-A CRITICAL REVIEW

Daniya Fatima, Imam Pasha Syed* and Anupama Koneru

ABSTRACT

Electro membrane extraction or EME, is a miniaturized liquid-liquid extraction technique developed for sample preparation of aqueous samples prior to analysis by chromatography, electrophoresis, mass spectrometry, and related techniques in analytical chemistry. EME involves the use of a small supported liquid membrane (SLM) sustained in the wall of a porous hollow fiber, and application of an electrical field across the SLM. Electroextraction (EE) and electromembrane extraction (EME) are sample preparation techniques that both require an electric field that is applied over a liquid‐liquid system, which enables the migration of charged analytes. First, the theoretical aspects of concentration enhancement in EE and EME are discussed to explain extraction recovery and enrichment factor. Authors described the overviews are provided of the techniques based on their hyphenation to LC, GC, CE, and direct detection.

Keywords: Electroextraction, Electro membrane Extraction, Hyphenation, Analytical Techniques, Critical Review.