Amperometric alcohol electrode with extended linearity and reduced interferences.

G J Lubrano; M H Faridnia; G Palleschi; G G Gyilbault

doi:10.1016/0003-2697(91)90512-r

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Amperometric alcohol electrode with extended linearity and reduced interferences.

G J Lubrano·M H Faridnia·G Palleschi·G G Gyilbault

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Abstract

Conventional amperometric alcohol electrodes were constructed with oxygen- and hydrogen peroxide-base sensors and a much improved electrode was designed by placing a hydrophobic, gas-permeable membrane over the conventional hydrogen peroxide-based alcohol electrode. The immobilization of alcohol oxidase with glutaraldehyde was also studied and optimized. The upper linear ranges of the conventional and newly designed alcohol electrodes were 0.02 and 0.5% ethanol, respectively. The hydrophobic membrane of the new design eliminated the classical electrochemical interferences of hydrogen peroxide-based electrodes and the typical pH dependence of enzymatic systems.

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Alcohol Oxidoreductases Cross-Linking Reagents Electrochemistry Electrodes Enzymes, Immobilized Ethanol Glutaral Hydrogen Peroxide Membranes, Artificial Methanol Polycarboxylate Cement Comparative Study Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, P.H.S.

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G J Lubrano, M H Faridnia, G Palleschi, G G Gyilbault. 1991. Amperometric alcohol electrode with extended linearity and reduced interferences.. https://doi.org/10.1016/0003-2697(91)90512-r

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