Diode laser-induced fluorecscence detection in capillary electrophoresis after pre-column derivatization of amino acids and small peptides.

A.J.G. Mank, E.S. Yeung

    Research output: Contribution to JournalArticleAcademicpeer-review

    Abstract

    The use of diode laser-induced fluorescence (DIO-LIF) detection in the field of capillary electrophoresis (CE) is examined. A simple but sensitive detection system was constructed. The performance of the system was evaluated with respect to design factors and its sensitivity was compared with the theoretically achievable sensitivity. To enhance the applicability of direct DIO-LIF detection in CE, a derivatization method for amines was developed. A red-absorbing label, consisting of a dicarbocyanine fluorophore with a succinimidyl ester functionality, was synthesized for this purpose. After derivatization of 1 × 10
    Original languageEnglish
    Pages (from-to)309
    JournalJournal of Chromatography A
    Volume708
    DOIs
    Publication statusPublished - 1995

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