title: Use of charcoal to separate antibody complexes from free ligand in radioimmunoassay.
mesh_terms: D000936:Antigen-Antibody Complex; D002606:Charcoal; D003911:Dextrans; D008024:Ligands; D011863:Radioimmunoassay / Q000379:methods*
chemical_list: D000936:Antigen-Antibody Complex; D003911:Dextrans; D008024:Ligands; D002606:Charcoal