0162453 - UIACH-O 20033016 RIV NL eng J - Journal Article
Kahle, Vladislav - Vázlerová, M. - Welsch, T.
Automated microgradient system for capillary electrochromatography.
Journal of Chromatography A. Roč. 990, 1-2 (2003), s. 3-9. ISSN 0021-9673. E-ISSN 1873-3778
R&D Projects: GA ČR GA203/02/1447; GA AV ČR IBS4031201
Institutional research plan: CEZ:AV0Z4031919
Keywords : Electrochromatography * automation * gradient elution
Subject RIV: CB - Analytical Chemistry, Separation
Impact factor: 2.922, year: 2003

A microprocessor controlled gradient elution system suitable for capillary electrochromatography has been developed and tested. It is based on a liquid handling device described previously which is capable of liquid transport with both low and high fluid dispersion. The low dispersion region formed by stainless steel needle 250 microm I.D. serves for sample injection, while the high dispersion region, created by steep extension of tube diameter, is used for continuous mobile phase gradient generation. A homologous series of seven alkylphenones was electrochromatographycally separated on a monolithic polyacrylic column under gradient conditions. An S-shaped acetonitrile gradient (3070
Permanent Link: http://hdl.handle.net/11104/0059768