Gel scintillation counting of I-131 in plasma at high efficiencies.
A method is described for assaying low concentrations of (131)I in plasma by detecting the beta radiation in a gel scintillator. Higher detection efficiencies are obtained compared with measurements of the gamma radiation from this radioisotope using a well-type crystal of sodium iodide.
D005782:Gels; D006801:Humans; D007457:Iodine Radioisotopes / Q000097:blood*; D008722:Methods; D011874:Radiometry; D013960:Thyroid Function Tests
D005782:Gels; D007457:Iodine Radioisotopes