Determination of stability constant of potassium-dibenzo-18-crown-6 complex in mixed hydro-organic solvents by affinity capillary electrophoresis

0469327 - ÚOCHB 2017 CZ eng C - Konferenční příspěvek (zahraniční konf.)
Konášová, Renáta - Jaklová Dytrtová, Jana - Kašička, Václav
Determination of stability constant of potassium-dibenzo-18-crown-6 complex in mixed hydro-organic solvents by affinity capillary electrophoresis.
Advances in Chromatography and Electrophoresis & Chiranal 2016. Olomouc: Palacký University, 2016 - (Maier, V.), s. 110-111. ISBN 978-80-244-4961-6.
[Advances in Chromatography and Electrophoresis & Chiranal 2016. Olomouc (CZ), 06.06.2016-09.06.2016]
Grant CEP: GA ČR(CZ) GA15-01948S; GA ČR GP13-21409P
Institucionální podpora: RVO:61388963
Klíčová slova: affinity capillary electrophoresis * dibenzo-18-crown-6 * stability constant
Kód oboru RIV: CB - Analytická chemie, separace

Affinity capillary electrophoresis was applied to determination of apparent stability constant, Kst, of potassium-dibenzo-18-crown-6 complex in mixed hydro-organic solvents, i.e. mixtures of water with methanol, ethanol, propan-2-ol or acetonitrile. It was found that the Kst strongly depends on the solvent composition. The log Kst values linearly increase with decreasing molar fraction of water in the above hydro-organic solvent mixture.
Trvalý link: http://hdl.handle.net/11104/0267199