Principle of Assay
Guinea Pig CXCL1 (GRO alpha) ELISA Kit (A326511) is a 4 hour sandwich Enzyme-Linked Immunosorbent Assay (sELISA) designed for the in vitro quantitative determination of guinea pig CXCL1 (GRO alpha) in serum, plasma, cell culture supernatant, cell or tissue lysate, and other biological fluids. A 96-well microtiter plate has been pre-coated with an antibody specific for CXCL1 (GRO alpha). Standards and samples are added to the wells, where CXCL1 (GRO alpha) binds to the immobilized capture antibody. Following incubation, unbound components are removed by washing and a biotinylated detection antibody specific for CXCL1 (GRO alpha) is added to the wells. The detection antibody binds the captured CXCL1 (GRO alpha) to form an antibody-antigen-antibody sandwich complex. After further incubation and washing, HRP-Streptavidin conjugate is added to the wells. TMB substrate solution is then added to visualize the HRP enzymatic reaction. This produces a blue-coloured product that changes to yellow following addition of acidic stop solution. The intensity of the yellow colour is directly proportional to the amount of CXCL1 (GRO alpha) captured in each well. The concentration of CXCL1 (GRO alpha) is calculated by reading the absorbance at 450 nm and comparing the values with the standard curve.