Abstract Serum insulin level was determined by a solid phase RIA with second antibody bound to maleic anhydride-styrene copolymer coated on polystyrene tubes.

• 用马来酸酐－苯乙烯共聚物结合二抗IgG的方法，制备出二抗固化管，建立了固相放射免疫测定血清胰岛素的方法。