CheKine™ Superoxide Anion Colorimetric Assay Kit

The kit provides a simple method for detecting the O2- content in a variety of biological samples such as animal tissues, plant tissues, serum, cells . In the assay, The superoxide anion in variety of biological samples reacts with hydroxylamine hydrochloride to produce NO2－, and NO2－ reacts with Gris’ reagent. The mechanism of Gris’ analysis is summarized as the azo coupling between diazoniums, which is It is produced by sulfonamides and NO2- and N-(1-naphthyl)ethylenediamine dihydrochloride to generate a red azo compound with a characteristic absorption peak at 540nm. The O2- content in the sample can be calculated based on the A540 value.