In the present paper, bovine serum albumin (BSA) was studied for
extraction case from a buffer solution through a new version of modified
magnetic chitosan nanocomposite. Post-modification of this magnetic
chitosan led to conversion of amine groups to dithiocarbamate on the
surface of chitosan which was wrapped to superparamagnetic iron oxide
nanoparticles (SPION). Chitosan was converted to magnetic chitosan over
co-precipitation of Fe2+ and Fe3+ under alkali conditions. Amines of chitosan
were also converted to dithiocarbamate over the reaction of carbon
disulfide. Study of the synthesized support in BSA extraction was achieved
in further experiments.