Direct competitive inhibition ELISA using immobilized anti-progesterone (3 µg/mL), and progesterone-labelled HRP (100 ng/mL). 50% inhibition occurred at 5 ng/mL of free progesterone under non-optimized conditions.
Structure of the Progesterone HRP Conjugate
Product is stable for several weeks at 4°C. For extended storage, store product at –20ºC. Expiration date is six months from date of shipping if properly stored.