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The kinetic parameters for electrocatalytic oxidation of dihydronicotiamide adenine dinucleotide (NADH) at poly(toluidine blue o) (PTOB) modified glassy carbon electrode have been determined using rotating disk electrode measurements. The rate constant for the chemical reaction between NADH and PTOB was strongly influenced by NADH concentration and solution pH, and it decreased with increasing NADH...
A pyrocatechol sulfonephthalein- (PS-) modified glassy carbon (PS/GC) electrode has been prepared by adsorption of PS on a glassy carbon electrode surface. Cyclic voltammograms of the PS/GC electrode indicate the presence of a couple of well-defined redox peaks, and the formal potential shifts in the negative direction with increasing solution pH. The relation between formal potential,E0′, and solution...
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