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Russian Chemical Bulletin

, Volume 46, Issue 2, pp 314–318 | Cite as

Temperature changes of sorption parameters of di-n-alkylketones and methylcyclohexanones in capillary gas chromatography

  • R. V. Golovnya
  • L. A. Syomina
  • A. L. Samusenko
Physical Chemistry

Abstract

The gas chromatographic behavior of di-n-alkylketones and isomeric methylcyclohexanones at variable temperatures in the isothermal runs has been studied using three capillary columns coated with SE-30, OV-225, and PEG-40M/KF stationary phases. The retention indices and their temperature increments were determined, and the partial molar free energies of the compounds under study were calculated. A linear dependence of the values of the partial molar free energy of sorption on the homologue number in di-n-alkylketones is not observed for the first member on the nonpolar SE-30 phase and for the third member on the polar OV-225 and PEG-40M/KF phases.

Key words

capillary gas chromatography di-n-alkylketones methylcyclohexanones retention indices temperature increments partial molar free energy of sorption 

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Copyright information

© Plenum Publishing Corporation 1997

Authors and Affiliations

  • R. V. Golovnya
    • 1
  • L. A. Syomina
    • 1
  • A. L. Samusenko
    • 1
  1. 1.N. M. Emanuel' Institute of Biochemical PhysicsRussian Academy of SciencesMoscowRussian Federation

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