Creative Biogene, as a leading biotechnology company in the world, can offer various methods to detect and assay the amounts of residual host cell proteins, as well as providing a variety of ELISA based HCPs assay kits for your research. Either the assay service or the related quantification kits provided by Creative Biogene can help you to confirm the rationality of the purification process and ensure quality and safety of the final biopharmaceutical products.