Biological immunosensor based on screen printing carbon electrode surface modification and preparation method thereof

The invention relates to a biological immunosensor based on surface modification of a screen-printed carbon electrode and a preparation method of the biological immunosensor. According to the preparation method, the surface of the screen-printed carbon electrode is treated and modified, so that impurities introduced in the production process of the screen-printed carbon electrode can be effectively removed; the non-specific binding of the organic carbon paste adhesive on the surface and the protein is avoided; meanwhile, by improving the formula of the confining liquid, a micropore space structure on the surface of the carbon electrode can be blocked, free carboxyl can be neutralized, and space physical combination and chemical bond combination of non-specific protein are avoided, so that the detection accuracy of the biological immunosensor is improved, and false positive detection results of the biological immunosensor are reduced. 本发明涉及一种基于丝网印刷碳电极表面修饰的生物免疫传感器及其制备方法，所述制备方法通过对丝网印刷碳电极的表面进行处理修饰，可有效地去除丝网印刷碳电极生产