Triiodothyronine (T3) is one of the thyroid gland hormones with a molecular weight of 651 Da. Quantitative determination of serum T3 is significant for evaluation of thyroid gland function. Concentration of non-bound form of T3 (free T3) is very low, approximately 0,1-0,3% of the total concentration of circulating hormone. Free T3 concentration does not depend on the concentration of binding proteins.
ThyroidEIA-free T3 kit is intended for the quantitative determination of free triiodothyronine in human serum and plasma.