Ivanov, Svetlozar and Tsakova, Vessela and Mirsky, Vladimir M. (2006) Conductometric transducing in electrocatalytical sensors: Detection of ascorbic acid. ELECTROCHEMISTRY COMMUNICATIONS, 8 (4). pp. 643-646. ISSN 1388-2481, 1873-1902
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Conductometric transducing is suggested for electrocatalytic chemical sensors based on conductive polymers. Lateral conductivity of the polymer layers was measured by two- and four-point techniques. The approach was applied for electroanalytical detection of ascorbic acid on the electrocatalytically active polyaniline and poly-ortho-methoxyaniline electrodes. Both polymers displayed a monotonous concentration dependence of their conductance in the analytically important sub-millimolar concentration range of ascorbic acid. The approach was tested in model solutions of ascorbic acid in buffer and applied for detection of ascorbic acid in orange juice. (c) 2006 Elsevier B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | GLASSY-CARBON ELECTRODE; CONDUCTING POLYMERS; POLYPYRROLE/FERROCYANIDE FILMS; ELECTROCHEMICAL FORMATION; POLYANILINE FILMS; COATED ELECTRODES; OXIDATION; POLYPYRROLE; CONTACT; METAL; chemical sensor; conductometric sensor; ascorbic acid; electrocatalytical sensor; electroactive polymers; polyaniline; poly-ortho-methoxyaniline |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik > Chemo- und Biosensorik (Prof. Antje J. Bäumner, formerly Prof. Wolfbeis) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 17 Feb 2021 07:44 |
| Last Modified: | 17 Feb 2021 07:44 |
| URI: | https://pred.uni-regensburg.de/id/eprint/34731 |
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