two-site immunoradiometric assay
Immunoradiometric assay
involving two sets of
antibodies
, one of which is
labelled
, that combine with different immunoreactive sites of an
antigen
molecule.
Source:
PAC, 1994,
66
, 2513
(Nomenclature for radioanalytical chemistry (IUPAC Recommendations 1994))
on page 2520