Mouse Pre-Albumin ELISA

In this assay, the prealbumin present in samples reacts with the anti-prealbumin antibodies which have been adsorbed to the surface of polystyrene microtiter wells. After the removal of unbound proteins by washing, anti-prealbumin antibodies conjugated with horseradish peroxidase (HRP) are added. These enzyme-labeled antibodies form complexes with the previously bound prealbumin. Following another washing step, the enzyme bound to the immunosorbent is assayed by the addition of a chromogenic substrate, 3,3’,5,5’-tetramethylbenzidine (TMB). The quantity of bound enzyme varies directly with the concentration of prealbumin in the sample tested; thus, the absorbance, at 450 nm, is a measure of the concentration of prealbumin in the test sample. The quantity of prealbumin in the test sample can be interpolated from the standard curve constructed from the standards and corrected for sample dilution.