0162446 - UIACH-O 20033009 RIV FR eng C - Konferenční příspěvek (zahraniční konf.)
Planeta, Josef - Roth, Michal
Capillary-column supercritical fluid chromatography as a route to solute partition coefficients in ionic liquidCO2 systems: feasibility study.
Proceedings of the 6th International Symposium on Supercritical Fluids. Vandoeuvre: International Society for the Advancement of Supercritical Fluids, 2003 - (Brunner, G.; Kikic, I.; Perrut, M.), s. 711-716. ISBN 2-905-267-3702.
[International Symposium on Supercritical Fluids /6./. Versailles (FR), 28.04.2003-30.04.2003]
Grant CEP: GA ČR GA203/02/1093; GA AV ČR IAA4031301
Výzkumný záměr: CEZ:AV0Z4031919
Klíčová slova: supercritical fluid chromatographyionic liquidcarbon dioxide systemsolute partition coefficient
Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie

Combination of a room-temperature ionic liquid (RTIL) and supercritical carbon dioxide provides a green alternative to conventional reaction media/solvent systems comprising volatile organic solvents. A typical application of an RTILCO2 system would involve a reaction in the RTIL environment, and a subsequent extraction of the reactants and products from the RTIL with supercritical CO2. For both fundamental understanding and process utilisation of such a procedure, high-pressure partition coefficients are necessary of the substances concerned between both phases in the RTILCO2 system. Supercritical fluid chromatography (SFC) with the RTIL as the stationary liquid phase and CO2 as the mobile-phase fluid presents a convenient and inexpensive route to the partition coefficients, at least in low-volatility solutes. In this contribution, we report the results of a feasibility study in naphthalene1-butyl-3-methylimidazolium hexafluorophosphateCO2 system.
Trvalý link: http://hdl.handle.net/11104/0059761