Test reactions for a stopped-flow apparatus. Reduction of 2,6-dichlorophenolindophenol and potassium ferricyanide by L-ascorbic acid.

Abstract A reaction system suitable for testing the function of a stopped-flow apparatus of high performance was searched for. The reduction of 2,6-dichlorophenol-indophenol by l -ascorbic acid at pH 2.0 was recommended as the most practical test reaction. In due course of the study the reaction mechanism of the reduction was discussed.