W. Guo et al., A NEW MATRIX FOR AFFINITY-CHROMATOGRAPHY AND ITS APPLICATION IN THE SEPARATION OF A HUMAN MONOCLONAL-ANTIBODY, BMC. Biomedical chromatography, 8(3), 1994, pp. 142-144
A method for the preparation of a p-aminobenzene sulphonyl ethyl conta
ining crosslinked Sepharose 4B (ABSE-Sepharose 4B-CL) is described. tr
ypsin, bovine serum albumin (BSA) and concanavalin A (Con A) were immo
bilized onto this matrix by diazotization. Conditions for the coupling
reaction were investigated. The activity of immobilized trypsin reach
ed 1.4 X 10(4) U/g, and 25 mg BSA can be coupled onto 1 g ABSE-Sepharo
se 4B-CL under the optimal conditions. An affinity medium with immobil
ized Con A as ligand was prepared by this method, and was used in the
separation of a human monoclonal antibody.