Sample Type:Serum,plasma,urine and other biological fluids.Intended Use:BioAssay ELISA Kit for Alpha-2-Macroglobulin (a2M) in serum,plasma,urine and other biological fluids.Range:12.5-800ng/mlSpecificity:RatStorage and Stability:Store powder at 4°C liquid at -20°C. Store other components at 4°C. Stable for at least 6 months For maximum recovery of product,centrifuge the original vial after thawing and prior to removing the cap.