MELSIN Elisa kits mainly utilizes Sandwich enzyme immunoassay. Sample types: serum, plasma, urine, cell culture supernatantbody, saliva, tissue samples. We have thousands of elisa kits for human and animals, such as, rat, monkey, mouse, rabbit, bovine, sheep and etc. The kits get feedback for high sensitivity, good quality and competitive prices. Welcome to inquiry.(if you don't find the items needed, pls email us: sales@melsin.com)