TY - JOUR

T1 - Conductive vial electromembrane extraction

T2 - Principles and practical operation

AU - Schüller, Maria

AU - Hansen, Frederik André

AU - Skaalvik, Tonje Gottenberg

AU - Pedersen-Bjergaard, Stig

N1 - Publisher Copyright: © 2023 The Authors. Analytical Science Advances published by Wiley-VCH GmbH.

PY - 2023

Y1 - 2023

N2 - Electromembrane extraction (EME) is a microextraction technique where charged analytes are extracted from an aqueous sample solution, through a liquid membrane, and into an aqueous acceptor, under the influence of an external electric field. The liquid membrane is a few microliters of organic solvent immobilized in a polymeric support membrane. EME is a green technique and provides high selectivity. The selectivity is controlled by the direction and magnitude of the electric field, the chemical composition of the liquid membrane and the pH. Recently, commercial prototype equipment for EME was launched based on the use of conductive vials, and interest in EME is expected to increase. The current article is a tutorial and discusses the principle and practical work with EME. The practical information is related to the commercial prototype equipment but is valid also for other technical configurations of EME. The tutorial is intended to give readers a fundamental understanding of EME, which is required for method development and operation, and for avoiding common pitfalls.

AB - Electromembrane extraction (EME) is a microextraction technique where charged analytes are extracted from an aqueous sample solution, through a liquid membrane, and into an aqueous acceptor, under the influence of an external electric field. The liquid membrane is a few microliters of organic solvent immobilized in a polymeric support membrane. EME is a green technique and provides high selectivity. The selectivity is controlled by the direction and magnitude of the electric field, the chemical composition of the liquid membrane and the pH. Recently, commercial prototype equipment for EME was launched based on the use of conductive vials, and interest in EME is expected to increase. The current article is a tutorial and discusses the principle and practical work with EME. The practical information is related to the commercial prototype equipment but is valid also for other technical configurations of EME. The tutorial is intended to give readers a fundamental understanding of EME, which is required for method development and operation, and for avoiding common pitfalls.

KW - conductive vial electromembrane extraction

KW - microextraction

KW - sample preparation

KW - tutorial

U2 - 10.1002/ansa.202200065

DO - 10.1002/ansa.202200065

M3 - Journal article

AN - SCOPUS:85165513051

VL - 4

SP - 236

EP - 243

JO - Analytical Science Advances

JF - Analytical Science Advances

SN - 2628-5452

IS - 7-8

ER -