Significant Micellar Effect on the Oxidative Electrochemistry of Ascorbic Acid†

Abstract

The oxidation potential of L-ascorbic acid at a glassy carbon electrode shifts from 200 mV (vs. SCE) in phosphate buffer at pH 6.8 to 10 mV in the presence of cetyltrimethylammonium bromide (CTAB) micelles, and to 460 mV in the presence of sodium dodecyl sulfate (SDS) micelles.

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