Setting the standard with Validated, Accurate ELISA Sandwich ELISA Kits detect and measure cytokines, growth factors, and other biological proteins from cell culture supernatants, tissue homogenates, sera, plasma and other fluids. Prepared fresh and extensively validated for high specificity, lot-to-lot reproducibility, sensitivity and accuracy. These Human, Mouse and Rat ELISA Kits are prepared fresh for your order and contain a corresponding sample for preparation of a standard detection curve. Each ELISA Kit is ready-to-use and scalable, containing reagents for up to 96 reactions in immunoassay plate format.