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A polyethyleneimine (PEI) modified ion-exchanger was prepared based on poly(methacrylate-co-ethylene dimethacrylate) monolith cast in 100mm×4.6mm I.D. stainless steel tube with heptane as the porogenic solvent at 65°C for 12h. The pores larger than 500nm presented 85% of total pore volume of PEI monolith and provided the better permeability for separation. Bovine serum albumin (BSA) binding capacity...
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