title: Ionic liquids as surfactants in micellar liquid chromatography.
abstract: This paper is devoted to application of ionic liquids as surfactants in LC of organic compounds, derivatives of 1,4-thiosemicarbazides. According to HPLC requirements the most advantageous conditions such as transparency for ultraviolet light, low CMC, additional inorganic salt additives, and appropriate organic solvent were established. The CMC was determined using conductivity measurements. Suitability of two different stationary phases: RP-C18 and cyanopropyl bonded phase was examined under micellar conditions. Chosen ionic liquid surfactant was compared to common traditional amphiphilic reagent - SDS. Elaborated on chromatographic micellar conditions were tested as a pilot technique for prediction of distribution coefficients of organic analytes in ionic liquid-based aqueous two-phase system.
authors.affiliation: Department of Analytical Chemistry, Medical University of Lublin, Lublin, Poland. piflieger@op.pl
authors.forename: Jolanta
authors.initials: J
authors.lastname: Flieger
authors.forename: Agata
authors.initials: A
authors.lastname: Siwek
authors.forename: Magdalena
authors.initials: M
authors.lastname: Pizoń
authors.forename: Anna
authors.initials: A
authors.lastname: Czajkowska-Żelazko
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000295:instrumentation* / Q000379:methods; D052578:Ionic Liquids / Q000737:chemistry*; D008823:Micelles; D013501:Surface-Active Agents / Q000737:chemistry*
chemical_list: D052578:Ionic Liquids; D008823:Micelles; D013501:Surface-Active Agents