New Simple Kit Method for Radioimmunoassay of Serum Triiodothyronine

Abstract

Our experience with a new kit used for measuring serum triiodothyronine (T₃) is reviewed. The method’s advantages include its simplicity, rapidity, relatively long shelf-life, the fact that it does not require expensive and elaborate laboratory equipment, and the small amount of radioactivity involved. The method has good specificity for T₃ and its reproducibility is satisfactory. The results with this method compare favorably with those obtained by previously published assays.