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Cholesteric bonded stationary phases for high-performance liquid chromatography: a comparative study of the chromatographic behavior.

Courtois C, Pagès G, Caldarelli S, Delaurent C

Ism2, Aix Marseille Université, Case 512, Campus de Saint Jérôme, Avenue Escadrille Normandie-Niemen, 13397, Marseille Cedex 20, France. cedric.courtois@univ-cezanne.fr

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.

Published 8 September 2008 in Anal Bioanal Chem, 392(3): 451-61.
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