Study on the preparation of spherical macroporous cellulosic ion exchanger and its adsorption properties(ⅲ) adsorption properties for protein using spherical macroporous cellulosic anion exchanger 大孔球形纤维素离子交换剂的制备及其对蛋白质的吸附富集性能研究.Ⅲ.球形纤维素阴离子交换剂对蛋白质的吸附富集性能研究