Use Immunochemicals’ Chemiluminescent Western Blot Kit for detection of E.coli Host Cell Proteins. This kit is useful for both ''Western blotting'' and ''dot blotting'' methods. After protein separation and transfer, the membrane is probed with Anti-Host Cell Proteins Antibody. Detection of the membrane bound antibody-antigen complex is achieved by the addition of a secondary antibody conjugated to the enzyme horseradish peroxidase. The enzyme reacts with Femtomax, a specialized formulation of luminol which is an extremely sensitive, non-radioactive substrate that emits light (chemiluminescence) and allows visualization using X-ray film or other imaging methods, including highly sensitive CCD cameras and imaging systems. Femtomax reagent (FEMTOMAX-020 or FEMTOMAX-110) is not included with this kit and must be purchased separately.