Abstract
AbstractRiboflavin, a known photosensitizer, when initially added at 5 m̈m to solutions of added phenols or anilines (structurally related to common environmental contaminants) greatly accelerated the rate of their loss in the presence of light. The sensitized photolysis rates increased in the absence of oxygen, suggesting a mechanism involving direct energy or electron transfer between flavin excited states and acceptor molecules. A preliminary kinetic model was developed to calculate loss rates. Riboflavin itself was rapidly converted in aqueous solution by Pyrex‐filtered mercury arc light to products that had variable efficiencies as sensitizers.
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