title: Cholesteric bonded stationary phases for high-performance liquid chromatography: a comparative study of the chromatographic behavior.
abstract: The properties of four cholesteric bonded stationary phases differing in the nature of the spacer and the end-capping were assessed using simple chromatographic tests based on the retention of nonpolar compounds and of planar or nonplanar probe solutes. All cholesteric columns showed a hydrophobicity close to that of conventional octadecyldimethylsilyl (ODS) materials. Non-end-capped cholesteric bonded phases showed greater selectivity than ODS ones and both end-capped cholesteric bonded phases exhibit behavior intermediate between that of the non-end-capped original material and that of the ODS bonded phase.
authors.affiliation: Ism2, Aix Marseille Université, Case 512, Campus de Saint Jérôme, Avenue Escadrille Normandie-Niemen, 13397, Marseille Cedex 20, France. cedric.courtois@univ-cezanne.fr
authors.forename: Cédric
authors.initials: C
authors.lastname: Courtois
authors.forename: Guilhem
authors.initials: G
authors.lastname: Pagès
authors.forename: Stefano
authors.initials: S
authors.lastname: Caldarelli
authors.forename: Corinne
authors.initials: C
authors.lastname: Delaurent
mesh_terms: D002784:Cholesterol / Q000032:analysis* / Q000138:chemical synthesis / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D057927:Hydrophobic and Hydrophilic Interactions; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D011084:Polycyclic Aromatic Hydrocarbons / Q000737:chemistry; D012821:Silanes / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013499:Surface Properties
chemical_list: D011084:Polycyclic Aromatic Hydrocarbons; D012821:Silanes; C082343:silanol; D002784:Cholesterol