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This study is concerned with the explanation of some thermodynamic properties of the retention equilibrium on a C18-silica monolithic column. Pulse response experiments were carried out in a reversed-phase liquid chromatography system using a methanol/water mixture (70/30, v/v) and n-alkylbenzene homologs as the mobile phase and sample compounds, respectively, in the temperature range between 278...
Surface diffusion in reversed-phase liquid chromatography (RPLC) using silica gels bonded with C 1 and C 18 alkyl ligands of different densities was studied from the viewpoints of two extrathermodynamic relationships, i.e., enthalpy-entropy compensation (EEC) and linear free energy relationship (LFER). First, according to the four methods proposed by Krug et al., the values of surface...
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