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Electrophoresis 2012-10-01

Simulation of the effects of complex-formation equilibria in electrophoresis: III. Simultaneous effects of chiral selector concentration and background electrolyte pH.

Jana Svobodová, Martin Beneš, Pavel Dubský, Gyula Vigh, Bohuslav Gaš

文献索引:Electrophoresis 33(19-20) , 3012-20, (2012)

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摘要

This paper describes the results of the second-level testing of the simulation program Simul 5 Complex. We compare the published experimental results with the simulated migration behavior of the enantiomers at different pH and chiral selector concentration values and use the same optimization object function, separation selectivity, as the original papers. Simul 5 Complex proved to be a suitable tool for the prediction of the effective mobilities, separation selectivities, and migration order reversals in these pH-dependent and CD concentration dependent enantiomer separations. In addition, by performing simulations of four different separations systems (both real and model systems), Simul 5 Complex revealed the existence of unexpected and hitherto unexplained electromigration dispersion effects that were caused by the complexation process itself and could significantly impair the quality of the separations.© 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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