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Separation and detection of amino acids and their enantiomers by capillary electrophoresis: A review
Author(s) -
Issaq Haleem J.,
Chan King C.
Publication year - 1995
Publication title -
electrophoresis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.666
H-Index - 158
eISSN - 1522-2683
pISSN - 0173-0835
DOI - 10.1002/elps.1150160178
Subject(s) - capillary electrophoresis , derivatization , chromatography , enantiomer , micellar electrokinetic chromatography , chemistry , amino acid , reagent , electrophoresis , fluorophore , fluorescence , high performance liquid chromatography , organic chemistry , biochemistry , physics , quantum mechanics
Since its introduction as an analytical technique capillary electrophoresis has been used for the separation of amino acids and their enantiomers; over 150 studies have been published to date. This review deals with their separation and detection. Amino acids have been resolved using both capillary zone electrophoresis and micellar electrokinetic chromatography. Pre‐column derivatization schemes which are employed for the sensitive detection of amino acids are discussed. Criteria for the selection of the pre‐ or post‐column derivatizing agent, chromophore or fluorophore, are presented. Detection systems, direct and indirect, that have been used are given with emphasis on fluorogenic reagents and laser induced fluorescence detection. Also, procedures for the separation of amino acid enantiomers are discussed and illustrated.