| abstract |
A method of immunoassay which comprises the steps of binding a specimen antigen or antibody and a labeled antibody or labeled antigen to an antibody or antigen immobilized on fibroin, determining the amount of the specimen antigen or antibody using the labeled material, and dipping the system in a buffer solution of about 2 to 4 in pH to dissociate the bound antigens or antibodies for repeated use of the immobilized antibody or antigen. |