title: Improved column preparation and performance in capillary electrochromatography.
abstract: Problems encountered in capillary electrochromatography, i.e. non-reproducible column manufacture, bubble formation during usage, short column lifetimes and limited choice of packing particles are addressed by the development of fritless or single-frit, internally tapered, segmented and dead-volume free coupled capillary columns. The Van Deemter plots measured demonstrate the performance of these high-quality capillaries which are suitable for capillary electrochromatography as well as for capillary high-performance liquid chromatographic applications.
authors.affiliation: Research Center of Nucleic Acid and Peptide Chemistry, Institut für Organische Chemie, Universität Tübingen, Germany.
authors.forename: E
authors.initials: E
authors.lastname: Rapp
authors.forename: E
authors.initials: E
authors.lastname: Bayer
mesh_terms: D001565:Benzoates / Q000302:isolation & purification; D019075:Electrophoresis, Capillary / Q000295:instrumentation / Q000379:methods*; D017022:Flow Injection Analysis; D011786:Quality Control; D013056:Spectrophotometry, Ultraviolet / Q000379:methods
chemical_list: D001565:Benzoates