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.
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Acknowlegements
The authors gratefully acknowledge B. Giordanetto of VWR International France (Fontenay-sous-Bois, France) for his help and F. Ziarelli (Spectropole, France) for CP MAS NMR spectra. We thank the French Ministry for Higher Education and Research for financial support.
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Courtois, C., Pagès, G., Caldarelli, S. et al. Cholesteric bonded stationary phases for high-performance liquid chromatography: a comparative study of the chromatographic behavior. Anal Bioanal Chem 392, 451–461 (2008). https://doi.org/10.1007/s00216-008-2276-5
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DOI: https://doi.org/10.1007/s00216-008-2276-5