Immobilized metal chelated affinity chromatography membranes using macroporous cellulose filter papers as stationary phase were prepared with activeagent epichorohydrin , coupling iminodiacetic acid and immobilizing Cu 2+ . Novel poly layer sandwich affinity membranes were also prepared using above filter papers with covalent cross linking agent aragose, which yielded aragose coating layer on the surface and in the porous network structure of the cellulose. After coupling iminodiacetic acid onto th...