C-Type Natriuretic Peptide (CNP) BioAssay ELISA Kit (Human) is a sandwich enzyme immunoassay for in vitro quantitative measurement of CNP in human serum, plasma and other biological fluids.Detection Range:62.5-4,000pg/mlSensitivity:26.4pg/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.