M.M. Kamal, H. Elzanowska, M. Gaur, D. Kim, V.I. Birss
Abstract:The adsorption of flavin adenine dinucleotide (FAD) at a mercury electrode surface has been investigated in dilute FAD solutions from pH ca. 2-7. FAD is found to adsorb initially in an orientation in which the isoalloxazine and adenine moieties lie parallel to the electrode surface (Stage I) at all acidic pH values and potentials. At low coverage in Stage I, a persistent separation of the anodic and cathodic peaks is present, independent of sweep rate, perhaps indicative of the expected planar (oxidized) and n…
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