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Dispersive phenomena in electromigration separation methods
Author(s) -
Gaš Bohuslav,
Kenndler Ernst
Publication year - 2000
Publication title -
electrophoresis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.666
H-Index - 158
eISSN - 1522-2683
pISSN - 0173-0835
DOI - 10.1002/1522-2683(200012)21:18<3888::aid-elps3888>3.0.co;2-d
Subject(s) - electromigration , capillary electrochromatography , electrochromatography , electrolyte , dispersion (optics) , capillary electrophoresis , chromatography , materials science , work (physics) , phase (matter) , mechanics , chemistry , flow (mathematics) , analytical chemistry (journal) , thermodynamics , optics , composite material , physics , electrode , organic chemistry
A review on dispersive effects and on peak broadening in electromigration separation methods (capillary electrophoresis and electrochromatography) is presented, mainly covering papers published between the beginning of 1997 and the beginning of 2000. Most attention is drawn to work dealing with nonlinear effects that cause anomalous electromigration dispersion in electrolyte systems with two or multiple coions. Further, topics cover the comparison of electroosmotic and pressure‐driven modes in electrochromatography, dispersive effects due to nonhomogeneous velocity fields in packed electrochromatography columns, to nonuniform electroosmotic flow, to sorption of analytes (mainly proteins) at the column wall or the stationary phase, and due to the influence of the nonideal column geometry like coiling or irregularities in shape.