Description
For samples: Serum, plasma, cell culture supernatants, body fluid and tissue homogenate
INTENDED USE This GPC-3 ELISA kit is a 1.5 hour solid-phase ELISA designed for the quantitative determination of Human GPC-3. This ELISA kit for research use only, not for therapeutic or diagnostic applications!
PRINCIPLE OF THE ASSAY GPC-3 ELISA kit applies the quantitative sandwich enzyme immunoassay technique. The microtiter plate has been pre-coated with a monoclonal antibody specific for GPC-3. Standards or samples are then added to the microtiter plate wells and GPC-3 if present, will bind to the antibody pre-coated wells. In order to quantitatively determine the amount of GPC-3 present in the sample, a standardized preparation of horseradish peroxidase (HRP)-conjugated polyclonal antibody, specific for GPC-3 are added to each well to “sandwich” the GPC-3 immobilized on the plate. The microtiter plate undergoes incubation, and then the wells are thoroughly washed to remove all unbound components. Next, substrate solutions are added to each well. The enzyme (HRP) and substrate are allowed to react over a short incubation period. Only those wells that contain GPC-3 and enzyme-conjugated antibody will exhibit a change in color. The enzyme-substrate reaction is terminated by addition of a sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450 nm. A standard curve is plotted relating the intensity of the color (O.D.) to the concentration of standards. The GPC-3 concentration in each sample is interpolated from this standard curve