Direct ELISA titration of T4-HRP (ICP1388)) using immobilized anti-T4 (1 µg/mL)，OD50 titer for ICP1388 is approximately 50 ng/mL.
Structure of the Thyroxine HRP
Product is stable for several weeks at 4°C. For extended storage, store the product at –20ºC. Expiration date is six months from date of shipping if properly stored.