ACTIVATED POLYMERIC SUPPORTS FOR THE CHROMATOGRAPHIC SEPARATION OF BIOMOLECULES, NAMELY, RIGID, LOW-SWELLING BEADS COMPOSED OF HYDROPHILIC POLYMERS HAVING A HIGHLY POROUS STRUCTURE; CHEMICALS FOR USE IN INDUSTRY AND SCIENCE; CHEMICALS FOR USE IN THE PURIFICAITON OF PROTEINS FOR IN VITRO USE; CHEMICALS FOR USE IN THE BIOCHEMICAL AND CHEMICAL INDUSTRY; CHEMICALS FOR USE IN BIOTECHNOLOGICAL MANUFACTURING PROCESSES; CHROMATOGRAPHY CHEMICALS FOR SEPARATION AND PURIFICATION OF BIOMOLECULES