“…In applications of combined sorbents, adsorption phenomena at the liquidholid interface must be accounted for in determining adsorption isotherms (542). Methods were reported for the measurement of sorption isotherms within the linear range of the adsorption isotherm (380), and the determination of sorption isotherms for components in multicomponent gaseous mixtures (1028) and on adsorption layers of poly(ethy1ene glycols) (873). Polish workers (1347,1661) applied GC data for the evaluation of the differential distribution of adsorption energies on heterogeneous surfaces.…”