Abstract
The new concepts of surface exclusion and geometrical exclusion are clearly defined in this paper. These two fundamental exclusion mechanisms are successfully applied to open-capillary chromatography, hydrodynamic chromatography and sizeexclusion chromatography. The experimental elution volumes are in excellent agreement with predicted data. An elegant iteration method is proposed to estimate the interstitial porosity and to correct the partition coefficient from experimental data in size-exclusion chromatography. The relationship between surface and geometrical exclusion and their contribution to the overall exclusion are quantitatively examined. The similarity and difference between hydrodynamic chromatography and size-exclusion chromatography are fully revealed.
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