KE00248 is a solid phase sandwich Enzyme Linked-Immuno-Sorbent Assay (Sandwich ELISA). The MIF ELISA kit is to be used to detect and quantify protein levels of endogenous MIF. The assay recognizes human MIF. An antibody specific for MIF has been pre-coated onto the microwells. The MIF protein in samples is captured by the coated antibody after incubation. Following extensive washing, another antibody of biotinylated specific for MIF is added to detect the captured MIF protein. For signal development, Sterptravidin-HRP is added, followed by Tetramethyl-benzidine (TMB) reagent. Solution containing sulfuric acid is used to stop color development and the color intensity which is proportional to the quantity of bound protein is measurable at 450 nm with the correction wavelength set at 630 nm.