20S-Proteasome (20S-PSM) BioAssay ELISA Kit (Human) is a competitive inhibition enzyme immunoassay technique for the in vitro quantitative measurement of 20S-PSM in human serum, plasma and other biological fluids.Detection Range:617.3-50,000ng/mlSensitivity:225.6ng/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.