Paper chromatography with liquid-phase coating

The applicability of the additive retention theory to capillary chromatography with modified adsorbents was demonstrated for the first time in paper [125]. This work used experimental data [126] on n-hep-tane retention on an alkaline treated glass capillary column, the walls of which were coated with squalane, as reported by Bruner and Carton [126]. The dependence of retention volume on the liquid phase content was shown to be linear, being in complete agreement with additive absorption-adsorption theory. 

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