CONJUGATE FOR USE IN IMMUNOASSAY METHOD

摘要

To adjust detection sensitivity and expand a measurement range depending on objects to be detected by a simple procedure in an immunoassay method involving using a colloidal metal having immobilized thereon an antibody or an antigen. Blocking treatment for a surface of a colloidal metal particle having immobilized thereon an antibody or an antigen with both components, i.e., a component of biological origin and a component of non-biological origin enables adjustment of measurement sensitivity with, for example, kinds and concentrations of both the components, and enables use of the component of non-biological origin, which has not been usable alone because of aggregation of a colloidal metal.