Liquid-liquid extraction procedures for sample enrichment in capillary zone electrophoresis

Stig Pedersen-Bjergaard*, Knut Einar Rasmussen, Trine Grønhaug Halvorsen

*Corresponding author for this work
    112 Citations (Scopus)

    Abstract

    This review article presents an overview of applications of liquid-liquid extraction (LLE) for analyte enrichment and clean-up of samples prior to capillary zone electrophoresis (CZE). The basic principles of LLE are discussed with special emphasis on analyte enrichment. In addition, attention is focused on the requirements for the final extract to be compatible with CZE. The paper discusses selected examples from the literature with special emphasis on detection limits in drug analysis and in environmental chemistry. Finally, the paper focus on alternative liquid-phase extraction concepts based on electroextraction, supported liquid membranes, and liquid-phase microextraction. Copyright (C) 2000 Elsevier Science B.V.

    Original languageEnglish
    JournalJournal of Chromatography A
    Volume902
    Issue number1
    Pages (from-to)91-105
    Number of pages15
    ISSN0021-9673
    DOIs
    Publication statusPublished - 24 Nov 2000

    Keywords

    • Capillary electrophoresis
    • Extraction methods
    • Liquid-liquid extraction
    • Reviews

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