DBC Free Triiodothyronine (FT3) ELISA kit, kit image, silhouette of a pipette
Ref CAN-FT3-4230
Kit Type: Competitive ELISA
Kit Size: 96-well break-apart microplate
Sensitivity: 0.3 pg/mL
Sample Type: Human serum / 25 μL
Calibrator Range: 2–40 pg/mL
Total Assay Time: 75 minutes
Note: When using the kit, the IFU version that is provided with the kit must be followed.
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  • CAN: IVD
  • EU: IVD CE
  • USA: For Research Use Only. Not For Use In Diagnostic Procedures.

Triiodothyronine (T3) is a thyroid hormone found circulating in the bloodstream. T3 contains three iodine atoms and is produced largely through the extrathyroidal conversion of thyroxine (T4), the principal thyroid hormone with four iodine atoms. Most of the T3 that circulates in the blood is bound to carrier proteins such as TBG, pre-albumin and albumin. The free fraction of T3 (fT3), which represents only 0.25% of the total amount, is considered to be the physiological active fraction.