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New description of heterogeneity effects in adsorption from multicomponent solutions and liquid adsorption chromatography

✍ Scribed by Jaroniec, M.

Publisher
John Wiley and Sons
Year
1986
Tongue
English
Weight
310 KB
Volume
9
Category
Article
ISSN
0935-6304

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✦ Synopsis

General equations describing adsorption from solutions on solids and liquid adsorption chromatography with mixed mobile phases are formulated in terms of the bulk and surface activity coefficients. Definition of the surface activity coefficients is extended; they describe nonideality of surface solution due to difference in molecular interactions of the components as well as nonideality of this solution generated by the adsorbent heterogeneity. It is shown that the above general equations predict simpler expressions known already in the literature. n i= 1 However, the nonideality of the surface solution may be generated by the heterogeneity of the adsorbent surface 452 Journal of High Resolution Chromatography & Chromatography Communications

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