[Radioimmunoassay of serum thyroxin-binding-globulin in euthryoid subjects].

The authors have set up a thyroxine-binding-globulin radio-immunoassay in blood serum. The standard used has been determined by gravimetry, its maximal thyroxine-binding capacity is 0,96 mole of thyroxine per mole of TBG. Serum concentration of TBG has been measured in 159 euthyroid normals. The mean value of the concentration is 20 mg/l.