Chromatographia

, Volume 17, Issue 1, pp 9–15

Investigation of selectivity in reversed-phase liquid chromatography-effects of stationary and mobile phases on retention of homologous series

Authors

  • H. Colin
    • Laboratoire de Chimie Analytique PhysiqueEcole Polytechnique
  • A. M. Krstulović
    • Laboratoire de Chimie Analytique PhysiqueEcole Polytechnique
  • M. -F. Gonnord
    • Laboratoire de Chimie Analytique PhysiqueEcole Polytechnique
  • G. Guiochon
    • Laboratoire de Chimie Analytique PhysiqueEcole Polytechnique
  • Z. Yun
    • Department of ChemistryUniversity of Peking
  • P. Jandera
    • Department of Analytical ChemistryUniversity of Chemical Technology
Originals

DOI: 10.1007/BF02265101

Cite this article as:
Colin, H., Krstulović, A.M., Gonnord, M.-. et al. Chromatographia (1983) 17: 9. doi:10.1007/BF02265101

Summary

Extrapolation of log k'vs. nc plots for homologous series chromatographed with different mobile phases leads to a common intersection point. Its coordinates depend on the series and the solvent used, and can be rationalized on the basis of the retention model of interaction indices.

The existence of this convergence point is reflected in the linear relationship of logα-logβ, which permits the optimization of chromatographic separations in the region of solvent compositions where these two parameters can be varied independently.

Key Words

Reversed-PhaseLiquid ChromatographySelectivityInteraction IndicesHomologous SeriesOptimization

Copyright information

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH 1983