title: Partition affinity ligand assay (PALA) for quantitation of triiodothyronine in serum.
abstract: Radioimmunoassay of triiodothyronine was performed with a homogeneous incubation system. Bound and free ligand were separated by partitioning in an aqueous two-phase system. The agreement between the results obtained with this technique and conventional heterogeneous radioimmunoassay was very good (r = 0.981).
mesh_terms: D003377:Countercurrent Distribution; D006801:Humans; D011863:Radioimmunoassay; D012016:Reference Values; D014284:Triiodothyronine / Q000097:blood*
chemical_list: D014284:Triiodothyronine