Principle of Assay
Human CD66b ELISA Kit (A6305) employs the sandwich enzyme immunoassay technique for the quantitative measurement of human CD66b in serum, plasma, tissue homogenates or other biological fluids. An antibody specific for CD66b has been pre-coated onto a 96-well microtiter plate. The standards and test samples are added into the wells and the CD66b present in each sample is bound to the wells by the immobilized antibody. Following incubation, the wells are washed and then incubated with Biotinylated Anti-CD66b Antibody, which binds the captured CD66b present in each well. HRP-Avidin conjugate is then added to the wells and the microtiter plate is incubated. Following incubation and washing, TMB substrate solution is then used to visualize the HRP enzymatic reaction by catalysis to produce a blue-coloured product that changes to yellow after addition of acidic stop solution. The density of yellow is proportional to the amount of CD66b captured in each well. The concentration of CD66b can then be calculated by reading the O.D. absorbance at 450nm in a microplate reader and referring to the standard curve.