The selectivity of 4-(Decyloxy) benzoic acid (DBA) liquid crystal in surface adsorption region (–) and thermodynamic region ( – ) was investigated by inverse gas chromatography at infinite dilution (IGC-ID). The selectivity parameters of the structural isomer series named butyl acetate, butyl alcohol, and amyl alcohol series were calculated for the DBA using IGC-ID technique. Additionally, the surface properties including dispersive surface energy (gSD), free energy (DGAS), enthalpy (DHAS), and acidity-basicity constants were calculated with net retention volumes obtained from IGC-ID experiment results. When the DHAS and DGAS are constants, DBA surface was found to be an acidic character (KD/KA@). |