Preparation and electrocatalytic properties of the TBO/nafion chemically-modified electrodes

Electrocatalysis and Amperometric Detection of the Reduced Form of Nicotinamide Adenine Dinucleotide at Toluidine Blue/Zinc Oxide Coated Electrodes

“…pK a of TBO is 4.0, its negatively charged at neutral pH range, so it could be strongly adsorbed on positively charged ZnO surface (pHzpc 9.0). This is consistent with the results published elsewhere [5,7,31,32]. Collectively, the electrode reaction of the TBO/ZnO hybrid film can be presented as follows: Figure 4 shows the cyclic voltammograms of a TBO/ZnO/ GCE in a phosphate buffer solution in the absence (curve a) and in the presence (curve b) of 5 mM NADH.…”

Development of AChE biosensor for the determination of methyl parathion and monocrotophos in water and fruit samples: A cyclic voltammetric study

“…The graph has a good linearity with a slope of 52 mV/pH. This slope value was close to the theoretical slope of (59 mV/pH) which his in accordance with Nernst equation for transfer of equal number of electrons and protons in the reaction [27,28,31,32]. Fig.…”

Voltammetric resolution of dopamine in the presence of ascorbic acid and uric acid at poly (calmagite) film coated carbon paste electrode

“…6b). The graph has good linearity with a slope of 52 mV/pH this behavior is nearly obeyed the Nernst Equation for equal number of electron and proton transfer reaction [17,18]. From the graph of Ipa vs pH, it can be seen that the current was maximum at pH 3.5.…”