


ZoBell's Solution for ORP by Exaxol, catalog numbers Z9801-500, Z9801-1, and Z9801-4, is ZoBell's solution, the ferro/ferricyanide redox standard for checking oxidation-reduction potential (ORP) electrodes. Available in 500 mL, 1 L, and 4 L from MBP, a registered vendor to many research institutes across the USA.


