. "ength of the carriers and the non-specific adsorption.DISCLOSURE OF THE INVENTIONIt is an object of this invention to provide a novel ion-exchanged product of cellulose consisting substantially of spherical to long spherical particles having a particle size of not more than 500 micrometers.Another object of this invention is to provide a novel ion-exchanged product of cellulose having such pores a" . . .