Photoelectrocatalytic oxidation of NADH with electropolymerized Toluidine Blue O
作者： Yusuf Dilgin , Lo Gorton , Gurel Nisli
关键词: Halogen lamp 、 Chemistry 、 Toluidine 、 Cyclic voltammetry 、 Electrode 、 Irradiation 、 Inorganic chemistry 、 Ascorbic acid 、 Overpotential 、 Amperometry
摘要: A poly(Toluidine Blue O) (poly-TBO) modified electrode was successfully prepared by repeated sweeping the applied potential from -0.6 to + 0.8 V (vs. SCE) on a glassy carbon (GCE) in borate buffer solution at pH 9.1 containing 0.1 M NaNO3 and 0.4 mM Toluidine 0 (TBO). The poly-TBO GCE shows electrocatalytic activity toward NADH oxidation phosphate 7.0, with an overpotential of ca. 350 mV lower than that bare electrode. photoelectrocatalytic this also investigated using cyclic voltammetry amperometry constant potential. When surface irradiated 250 W halogen lamp, effect observed for current increased about 2.2 times. selected +100mV amperometric photoamperometric detection NADH. linear calibration graph obtained range between 1.0 x 10(-5) 10(-3) 5.0 10(-6) X studies, respectively. some interfering compounds, such as ascorbic acid dopamine photoclectrocatalytic tested. (Less)
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