In this paper, the thermodynamic parameters of the separation process of six groups of aromatic positional isomers on nine crown ether polysiloxane, OV 1701 and Carbowax 20M capillary chromatographic columns have been investigated systematically. The Gibbs free energies for every compound at harmonic mean temperature, calculated were given. The enthalpy entropy compensation effect of these chromatographic process was examined by using of Krugs ANOVA method. In the light of the axiom of extrathermodynamic r...
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