Chromatographia

, Volume 17, Issue 1, pp 9–15 | Cite as

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

  • H. Colin
  • A. M. Krstulović
  • M. -F. Gonnord
  • G. Guiochon
  • Z. Yun
  • P. Jandera
Originals

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-Phase Liquid Chromatography Selectivity Interaction Indices Homologous Series Optimization 

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Copyright information

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH 1983

Authors and Affiliations

  • H. Colin
    • 1
  • A. M. Krstulović
    • 1
  • M. -F. Gonnord
    • 1
  • G. Guiochon
    • 1
  • Z. Yun
    • 2
  • P. Jandera
    • 3
  1. 1.Laboratoire de Chimie Analytique PhysiqueEcole PolytechniquePalaiseau CedexFrance
  2. 2.Department of ChemistryUniversity of PekingPekingChina
  3. 3.Department of Analytical ChemistryUniversity of Chemical TechnologyPardubiceCzechoslovakia

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