| 摘要 |
A procedure utilized in a diagnostic test for determining the level of thyroid hormone within a body fluid which includes admixing a radioactive isotope labeled hormone with a body fluid, and separating the resulting unbound hormone from the hormone bound by the hormone binding globulin and protein of the fluid by sorption of the unbound hormone by a particulate inorganic crystalline material. This sorption does not depend upon critical time or temperature limitations, and is generally conducted by thoroughly admixing the sorbent material with the solution containing the bound and unbound thyroid hormone at room temperature. The sorbent material is then separated from the resultant supernatant fluid and either the supernatant fluid or sorbent material, preferably the sorbent material, is counted with a scintillation counter to determine the labeled hormone bound to or free from the globulin.
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