A reagentless alcohol sensor-based on thionine-TDI modified glassy-carbon electrode

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/150151

Title: A reagentless alcohol sensor-based on thionine-TDI modified glassy-carbon electrode
Author(s): Yu, A. M.; Han, J. L.; Yang, K. S.; Chen, H. Y.
Abstract: Alcohol dehydrogenase (ADH) and the oxidized form of nicotinamide adenine dinucleotide(NAD(+)) were cross-linked directly in aid of the reaction of thionine and toluene diisocyanate (TDI) on the surface of glassy carbon electrode to yield a reagentless alcohol sensor. The NAD(+) was converted to NADH by oxidation of alcohol catalyzed by ADH and the NADH formed was oxidized electrochemically to the original NAD(+) by thionine-TDI mediator, thus giving the catalytic current for target analysis. The peak current was linearly related to the concentration of alcohol in the range of 1-15 mmol/L. The influence of various experimental conditions was also explored for optimum analytical performance. The sensor remains relatively stable for about 15 days.
Publication type: Journal article
Source: Chemical Journal of Chinese Universities (Gaodeng Xuexiao Huaxue Xuebao), Vol. 16, no. 8 (1995), pp. 1204-1206
Publication year: 1995
FOR Code(s): 03 Chemical Sciences
Keyword(s): ADH; Alcohol dehydrogenase; Alcohol sensor; NAD(+); NADH; Nicotinamide adenine dinucleotide; Thionine-TDI derivate
Publisher: Jilin Daxue
ISSN: 0251-0790
Peer reviewed