Sample Type:Serum,plasma and other biological fluids.Intended Use:BioAssay ELISA Kit for 5-Hydroxytryptophan (5-HTP) in serum,plasma and other biological fluids.Range:4.94-400ng/mlSpecificity:GeneralStorage 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.