Determination of hormones thyroids in a biological fluid by measurement of fluorescence

摘要

Thyroid hormones such as thyroxine and triiodothyronine are assayed in biological fluid samples by a competitive binding analysis in which a fluorescent label is used. Upon formation of complexes, the fluorescence of the labelled compound is released, and the hormone can be assayed by measuring the fluorescence of the mixture and comparing the result with standard data. Fluorescein is the preferred label. The process can be operated in a continuous flow manner.