5-Hydroxytryptamine (5-HT) BioAssay ELISA Kit is a competitive inhibition enzyme immunoassay technique for the in vitro quantitative measurement of 5-HT in serum, plasma and other biological fluids.Detection Range:12.35-1,000ng/mlSensitivity:4.16ng/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.