Abstract

A solution of bovine serum albumin (BSA) is repeatedly injected into a column packed with highly porous and hydrophobic polymer resins at appropriate intervals. The injected BSA is thoroughly retained in the column for 10 injections and, afterwards, starts to be eluted from the column gradually. Taking into consideration the restricting effect of already bound BSA upon the diffusion of newly injected BSA into the pores of the polymer resins, we can interpret the BSA elution profile from columns packed with polymer resin of various pore sizes and porosities. The effects of the binding rate constant and BSA concentration upon the elution profiles of BSA are also analyzed. Formyl groups are introduced into the polymers as a binding site with proteins, and the elution profiles of BSA from the column packed with the formylated resin are also analyzed.

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