Imidazolium ionic liquids as dynamic and covalent modifiers of electrophoretic systems for determination of catecholamines

摘要

The subject of this study is comparison of imidazolium based dynamic and covalent coatings of the quartz capillary wall on the example of catecholamines determination. A way of synthesis of covalent coatings was proposed. For the first time different type of on-line sample preconcentration techniques (fleld-amplified sample stacking (FASS), head-column field amplified sample stacking (HC PASS), electrostacking, sweeping) were performed for catecholamines determination in N-alkylsubstituted imidazolium coated capillary.