Glutathione S Transferase Alpha 1 (GSTa1) BioAssay ELISA Kit (Human) is a sandwich enzyme immunoassay for the in vitro quantitative measurement of GSTa1 in human serum, plasma and other biological fluids.Detection Range:0.625-40ng/mlSensitivity:0.265ng/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.