Description
Intended Uses: This sandwich kit is for the accurate quantitative detection of human Stromal Cell Derived Factor 1A (also known as SDF-1A) in serum, plasma, cell culture supernates, cell lysates, tissue homogenates.
Principles of the Assay: This kit is an Enzyme-Linked Immunosorbent Assay (ELISA). The plate has been pre-coated with human SDF-1A antibody. SDF-1A present in the sample is added and binds to antibodies coated on the wells. And then biotinylated human SDF-1A Antibody is added and binds to SDF-1A in the sample. Then Streptavidin-HRP is added and binds to the Biotinylated SDF-1A antibody. After incubation unbound Streptavidin-HRP is washed away during a washing step. Substrate solution is then added and color develops in proportion to the amount of human SDF-1A. The reaction is terminated by addition of acidic stop solution and absorbance is measured at 450 nm