method for immunological determination of schilddruesenhormone t3 and / or t4 by use of the thyroglobulins.

摘要

The thyroid hormones to which the method applies are present in free form in a sample. …??The method consists in allowing T3 and/or T4, to be assayed, to compete with thyroglobulin for the sites of anti-T3 and/or anti-T4 antibodies present in a limited quantity, and in then determining either the quantity of thyroglobulin bound to the anti-T3 and/or anti-T4 antibodies or the quantity of thyroglobulin not bound to the anti-T3 and/or anti-T4 antibodies. The thyroglobulin is generally immobilised on a solid support. The anti-T3 or anti-T4 antibodies may be labelled directly, for example with a radioactive, fluorescent or luminescent component or an enzyme, or alternatively be visualised indirectly with other labelled antibodies. …??This method may be used for determining the total T3 and/or T4 in a biological sample, provided an inhibitory component is added to the sample to liberate the T3 and/or T4 bound to carrier proteins.