Flow Analysis of Hydrogen Peroxide with a Dye-Formation Reaction Catalyzed by an Ion-Exchange Resin Modified with Mn³⁺-Tetrakis(sulfophenyl)porphine

抄録

The present flow analysis of hydrogen peroxide is based on a measurement of the absorbance of quinoid-dye formed by a following reaction (1) using an anion-exchange resin modified with manganese(III)-tetrakis(sulfophenyl)porphine (Mn-TSPP_r), which catalyzes the reaction (1), just like an immobilized peroxidase: 4-aminoantipyrine+4-chlorophenol+2H₂O₂ →^Mn-TSPPr quinoid dye+4H₂O [reaction (1)]. Mn-TSPP_r is more advantageous than immobilized peroxidase in terms of storage and stability for both temperature and moisture. The present facilitated method is satisfactory in reproducibility and sensitivity.