Description
Aviva Systems Biology Rpia ELISA Kit (Mouse) (OKEH06596) is based on a competitive enzyme immunoassay technique. The microtiter well-plate in this kit has been pre-coated with an anti-Rpia antibody. Sample or standards are added to the wells along with a fixed quantity of biotinylated Rpia and incubated. The Rpia found in the sample or standards competes with the biotinylated Rpia for limited binding sites on the immobilized anti-Rpia antibody. Excess unbound biotinylated Rpia and sample or standard Rpia is washed from the plate. Avidin-HRP conjugate is added, incubated and washed. An enzymatic reaction is then produced through the addition of TMB substrate which is catalyzed by the immobilized HRP to generate a blue color product that changes to yellow after adding acidic stop solution. The density of yellow coloration is measured by reading the absorbance at 450 nm which is quantitatively proportional to the amount of biotinylated Rpia captured in the well and inversely proportional to the amount of Rpia which was contained in the sample or standard