Volume 27, Number 5, June 1999Humic substances
|Page(s)||468 - 471|
Valveless interface for two-dimensional reversed-phase microcromatography (-RPLC)-capillary zone electrophoresis (CZE)O. Cabaleiro, M. Lores and R. Cela
Química Analítica, Nutrición y Bromatología, Facultad de Química, Universidad de Santiago de Compostela, Avda. Das Ciencias s/n, 15706-Santiago de Compostela, Spain
Single stage separation systems have limitations in resolving multicomponent mixtures and two-dimensional systems have higher peak capacities. A valveless interface for hyphenating Reversed-phase Microchromatography (-RPLC) and Capillary Zone Electrophoresis (CZE) -highly orthogonal separation methods- is presented, which main innovation is a third electrode. Design and operation of the interface as well as some preliminary results obtained by combining FIA and -RPLC with CZE are shown.
Key words: Two dimensional systems / micro-LC / CZE / valveless interface.
© EDP Sciences, Wiley-VCH 1999