Regensburg 2016 – wissenschaftliches Programm
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BP: Fachverband Biologische Physik
BP 20: Posters - Molecular Dynamics
BP 20.4: Poster
Montag, 7. März 2016, 17:30–19:30, Poster C
Electrophoretic Mobilization of Neutral Solutes in Salty Solutions — Tomas Krizek1, Anna Kubickova1, Pavel Coufal1, Pavel Jungwirth2, •Jan Heyda3, and Vladimir Palivec2,3 — 1Department of Analytical Chemistry, Faculty of Science, Charles University in Prague, Prague, Czech Republic — 2Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Center for Biomolecules and Complex Molecular Systems, Prague, Czech Republic — 3Department of Physical Chemistry, University of Chemistry and Technology, Prague, Czech Republic
UV-absorbing neutral substances are commonly used as markers of mean electroosmotic flow in capillary electrophoresis. However, it was recently found both experimentally and computationally (dx.doi.org/10.1002/elps.201300544) that some of the markers have dispositions to be mobilized with respect to the electroosmotic flow. The mobilization is caused by interactions of the marker molecule with components of background electrolyte.
In this work, 'amide' markers in combination with selected background electrolyte cations were studied. On the basis of this set of experiments, some general trends in the mobilization of markers were discussed and some favorable and unfavorable marker-cation combinations were pointed out.