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Home List of Titles Electrocatalysis of biomolecules at modified electrodes 4: electrocatalytic oxidation of reduced nicotinamide adeninedinucleotide at the methylene green modified graphite electrode
Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/150023
- Electrocatalysis of biomolecules at modified electrodes 4: electrocatalytic oxidation of reduced nicotinamide adeninedinucleotide at the methylene green modified graphite electrode
- Han, J. L.; Yu, A. M.; Chen, H. Y.
- The chemically modified electrode (CME), which was constructed by adsorbing the mediator methylene green (MG) onto the spectrographic graphite electrode, shows significant electrocatalytic activity to the oxidation of reduced nicotinamide adeninedinucleotide (NADH), reducing oxidation overpotential by 500mV. In the potential range from -0.25 V to +0.1V the adsorbed mediator MG behaves as one-electron reversible redox process involving one proton. In the medium of 0.1mol/dm(3) phosphate buffer (pH=7.0) the surface formal potential E degrees ' and apparent electron-transfer rate of the adsorbed mediator MG were found to be -0.14V and 4.4s(-1), respectively. The CME was tested as a electrochemical NADH detector, which shows high sensitivity and good stability. The CME was also characterized by ESCA and ATR.
- Publication type
- Journal article
- Acta Chimica Sinica (Huaxue Xuebao), Vol. 53, no. 4 (1995), pp. 362-368
- Publication year
- FOR Code(s)
- 03 Chemical Sciences
- Catalytic oxidation; Chemically modified electrode; CME; Nicotinamide adeninedinucleotide; Platinum
- Kexue Chubanshe
- Publisher URL
- Copyright © 1995.
- Peer reviewed