Effect of surface energetic heterogeneity in liquid adsorption chromatography with mixed mobile phases: Deviations from Soczewinski's relationship
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It is shown that the energetic heterogeneity of the support surface is the main factor governing the behaviour of the partition coefficient in LSC with mixed mobile phases. The logarithm of the partition coefficient appears to be a quadratic function of the logarithm of the concentration of the more active solvent in general. In many cases, however, the quadratic term takes negligible values, i.e., Soczewiński's relationship holds.
Key WordsLiquid-solid chromatography Surface energy heterogeneity Mixed mobile phases Soczewiński's relationship
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