CUSABIO has a sound platform for the development of ELISA kit, mature antigen-antibody research and development system. We are proficient in a variety of ELISA technologIies, such as the double-antibody sandwich method, double antigen sandwich method, (direct) competition ELISA, indirect competition ELISA, blocking method, indirect ELISA and other methods. Combined with diagnostic kits development team, we are able to develop the kits with clinical diagnostic level, and make the quality in the leading place worldwide. We can assure low intra and inter assay precisions of the ELISA kits as much as possible because we employ triple quality control procedures. The stability of each component in our kit is optimized by high temperature damage test for avoiding the antibody & antigen inactive during transportation & storage. Our kits stand out from the field of research reagents and being popular in dozens of countries worldwide with their perfect standard curves, strict quality control and high stability.