Cohesive immunoassay methods and reagents with good reproducibility

摘要

The agglomeration immunoassay method which makes the agglomeration and inhomogenization of an insoluble carrier particle such as latex stabilize and uniformize, and has excellent reproducibility, and an immunoassay reagent used therefor. An insoluble carrier in a test sample is bound to an insoluble carrier particle in the absence of an antigen or antibody, and an antibody or antibody complex that specifically reacts with the antigenic substance is combined to selectively coagulate the insoluble carrier particles In the aggregated immunoassay method, a monomer having a phosphorylcholine group and a vinyl group such as 2-methacryloyloxyethyl phosphorylcholine alone was polymerized, or a monomer having a phosphorylcholine group and a vinyl group, and methacrylic acid A polymer copolymerized with a monomer having a vinyl group such as n-butyl is used.