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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Application of affinity capillary electrophoresis for quantitative characterization of hexaarylbenzene-based receptor binding with alkali metal ions in methanol
 Ehala, Sille ; Makrlík, E. ; Toman, Petr ; Kašička, Václav
Affinity capillary electrophoresis was found to be suitable and effective tool for the quantitative evaluation of strong as well as weak interactions between hexaarylbenzene-based receptor and several alkali metal ions in methanol. The selectivity of the above receptor expressed by binding constants towards alkali metal ions was found to increase in the order of Na+ < Li+ < K+ < Cs+ < Rb+.
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Characterization of valinomycin binding with alkali metal ions by capillary affinity electrophoresis and density functional theory
 Ehala, Sille ; Dybal, Jiří ; Makrlík, E. ; Kašička, Václav
Capillary affinity electrophoresis (CAE) and quantum mechanical density functional theory (DFT) have been applied to the study of non-covalent binding of valinomycin (Val), an antibiotic dodecadepsipeptide ionophore, with alkali metal ions, Li+, Na+, K+, Rb+ and Cs+, in methanol. The binding constants (Kb) of Val-alkali metal ion complexes were evaluated by CAE. The most probable structures of the Val-alkali metal ion complexes were proposed by DFT.
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