RayBio® Human/Mouse/Rat Nesfatin EIA Kit for serum, culture supernatants and cell lysates. Competition-based ELISA on a 96-well strip plate. Optimized for serum and cell culture medium.http://www.raybiotech.com/human-nesfatin-eia-kit.htmlhttp://www.raybiotech.com/files/manual/EIA/EIA-NES.pdfhttp://www.raybiotech.com/files/MSDS/Kits/MSDS-EIA.pdf