Platelet Activating Factor (PAF) BioAssay ELISA Kit (Human) is a competitive inhibition enzyme immunoassay technique for the in vitro quantitative measurement of PAF in human plasma.Detection Range:740.7-60,000pg/mlSensitivity:290.2pg/mlStorage and Stability:Desiccation recommended. The Standard, Detection Reagent A, Detection Reagent B and the 96-well strip plate should be stored at -20°C upon receipt. Store all other reagents at 4°C. Stable for 6 months after receipt of order.