Abstract

The electroreduction of riboflavin in dimethylsulfoxide solutions at a mercury electrode was studied by polarographic, cyclic voltammetric and coulometric techniques. The solutions produced upon reduction were examined by electron spin resonance spectroscopy and spectrophotometry. A mechanism for the reaction, based on an initial one-electron transfer to form the riboflavin radical anion which decomposes by two parallel reactions, is proposed.

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