A CHROMATOGRAPHIC THEORY BASED ON THE CONCEPT OF A LAYER OF EQUILIBRIUM ADSORPTIONстатья
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Аннотация:The LEA model has been analyzed by comparing to other chromatographic theoretical approaches. In the LEA model a layer of equilibrium adsorption, Le serves as an effective kinetic constant. For the layer Le, the any moment of time. the value of Le is determined from all factors which broaden the chromatographic zone. Such an approach permits us to combine the fetotes of the mass balance( solute continuty in a chromatographic column),of the mass transfer phenomenon and of the adsorption isotherm into a single first order fifferent equation. Apartfrom other layer-by-layer models, the LEA model supposes that over the whole column a continuous (real) distribibition of adsorption a(L, t) is observed. The usefilness of the LEA model in develoing a chromatographic theory has been discussed.