Abstract
An analysis of conditions for chromatographic separation of quercetin and (+)-catechin based on experimental data and using the equations of an asymptotic model of sorption dynamics for substances characterized by convex isotherms of sorption is presented. The effects of the equilibrium (distribution coefficient) and kinetic (diffusion coefficient) factors on the dynamics of the sorption of flavonoids by ordered mesoporous material of the MCM-41 type and its composites with grafted organosilane groups is considered. The effects of kinetic and equilibrium parameters on the broadening of adsorption fronts is demonstrated with allowance for the inner and outer diffusion limitations of the sorption process.
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Original Russian Text © S.I. Karpov, E.O. Korabel’nikova, 2015, published in Zhurnal Fizicheskoi Khimii, 2015, Vol. 89, No. 6, pp. 1030–1037.
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Karpov, S.I., Korabel’nikova, E.O. Separation of (+)-catechin and quercetin on mesoporous MCM-41 composites: Dynamics of the sorption of flavonoids. Russ. J. Phys. Chem. 89, 1096–1102 (2015). https://doi.org/10.1134/S0036024415060151
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DOI: https://doi.org/10.1134/S0036024415060151