This ELISA kit uses the Sandwich-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to Mouse IgG2c. Samples (or Standards) and Horseradish Peroxidase (HRP) linked antibody specific for Mouse IgG2c are added to the micro ELISA plate wells. Mouse IgG2c in samples (or standards) combines with the coated antibody and HRP linked detection antibody specific to IgG2c. Excess conjugate and unbound sample or standard are washed from the plate. The substrate solution is added to each well. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450±2 nm. The concentration of Mouse IgG2c in the samples is then determined by comparing the OD of the samples to the standard curve.