Because PAA has no specific interaction with Con A, the PAA bound magnetic nanoparticles could adsorb effectively Con A from Jack Bean extract but the selectivity was low.

• 当使用磁性奈米粒子吸附白凤豆萃取液时，由于PAA对蛋白质并无特异性作用力，故虽能吸附白凤豆中伴刀豆球蛋白，但选择性不高。