title: A technical improvement in the radioimmunoassay of cyclic-AMP.
abstract: An improvement in the technique for the radioimmunoassay of cyclic-AMP, wherein ammonium sulfate precipitation is replaced with zirconyl phosphate gel, is presented. This substitution produces a more stable pellet than that obtained with ammonium sulfate. This greatly reduces a potential source of error due to pellet instability.
mesh_terms: D000936:Antigen-Antibody Complex; D000242:Cyclic AMP / Q000032:analysis*; D005782:Gels; D010710:Phosphates; D011863:Radioimmunoassay / Q000379:methods; D015040:Zirconium
chemical_list: D000936:Antigen-Antibody Complex; D005782:Gels; D010710:Phosphates; D015040:Zirconium; D000242:Cyclic AMP