The present invention provides an extremely simple and effective method of a sandwich EIA (enzyme immunoassay) system, or more precisely, a method for the detection of an antigen or an antibody by means of a sandwich enzyme immunoassay system using a combined material of insoluble carrier/antigen/enzyme-labeled antibody or a combined material of insoluble carrier/antigen/enzyme-labeled anti-immunoglobulin-antibody which comprises an insoluble carrier having coated thereon a layer of an antibody or antigen specific to the antigen or antibody to be detected and a layer of an enzyme-labeled antibody or enzyme-labeled anto- immunoglobulin-antibody specific to the antigen or antibody to be detected. According to the method of the present invention, the immunoreaction product comprising fixed antibody/ antigen to be detected/labeled antibody or fixed antigen/ antibody to be detected/labeled antiimmunoglobulin- antibody can be formed on the surface ofthe insoluble carrier by only one incubation and only one washing operation.
本发明提供了一种极为简便有效的夹心酶免疫分析系统方法,更确切地说,是一种利用不溶性载体/抗原/酶标记
抗体的组合材料或不溶性载体/抗原/酶标记抗免疫球蛋白-
抗体的组合材料,通过夹心酶免疫分析系统检测抗原或
抗体的方法。该系统包括不溶性载体,其上涂有一层待检测抗原或
抗体的特异性
抗体或抗原,以及一层待检测抗原或
抗体的特异性酶标记
抗体或酶标记抗免疫球蛋白
抗体。根据本发明的方法,只需一次孵育和一次洗涤操作,即可在不溶性载体表面形成由固定
抗体/待检测抗原/标记
抗体或固定抗原/待检测
抗体/标记抗免疫球蛋白-
抗体组成的免疫反应产物。