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Chromatographia

, Volume 23, Issue 6, pp 447–448 | Cite as

Reversed-flow gas chromatographic study of interaction between the components of a salt-modified adsorbent

  • A. Niotis
  • N. A. Katsanos
  • G. Karaiskakis
  • M. Kotinopoulos
Short Communication

Summary

The new Technique of reversed-flow gas chromatography was used to study the possible interactions between the two components of salt-modified adsorbents. The inert volatile solutes weren-hexane and benzene. Partition ratios of these solutes on the modified adsorbents, at various temperatures, were measured, followed by the determination of the differential enthalpies of adsorption. The plots of these enthalpies versus mole fraction of the modifier show a minimum for benzene and a maximum forn-hexane. These are taken as indications of an interaction between the components of the modified adsorbent.

Key Words

Gas-solid chromatography Complexation interaction Reversed-flow GC 

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Copyright information

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH 1987

Authors and Affiliations

  • A. Niotis
    • 1
  • N. A. Katsanos
    • 1
  • G. Karaiskakis
    • 1
  • M. Kotinopoulos
    • 1
  1. 1.Physical Chemistry LaboratoryUniversity of PatrasPatrasGreece

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