title: Hydrophilic interaction liquid chromatography for separation and quantification of selected room-temperature ionic liquids.
abstract: Hydrophilic interaction liquid chromatography (HILIC) is an alternative technique to ion pairing-reversed-phase liquid chromatography (IP-RPLC) and classical RPLC for separation of alkylimidazolium room-temperature ionic liquids (RTILs). Particularly, HILIC offers better retention and selectivity for short-chains RTILs imidazolium compounds. HILIC mechanisms were investigated by studying the influence of organic modifier content and salt concentration in the mobile phase. HILIC method was validated by quantifying 1-butyl-3-methylimidazolium cation (BMIM) degradation under gamma radiation at 2.5MGy. Development of separative reproducible analytical methods, including for low concentration, applicable to RTILs are today mandatory to improve RTILs chemistry.
authors.affiliation: CEA Saclay, DEN/DANS/DPC/SECR/LSRM, 91191, Gif-sur-Yvette, France. guillaume.lerouzo@cea.fr
authors.forename: Guillaume
authors.initials: G
authors.lastname: Le Rouzo
authors.forename: Christine
authors.initials: C
authors.lastname: Lamouroux
authors.forename: Carole
authors.initials: C
authors.lastname: Bresson
authors.forename: Aline
authors.initials: A
authors.lastname: Guichard
authors.forename: Philippe
authors.initials: P
authors.lastname: Moisy
authors.forename: Gilles
authors.initials: G
authors.lastname: Moutiers
mesh_terms: D002853:Chromatography, Liquid / Q000379:methods*; D052578:Ionic Liquids / Q000737:chemistry* / Q000302:isolation & purification*; D015203:Reproducibility of Results; D013696:Temperature
chemical_list: D052578:Ionic Liquids