On the Usage of Cyclic Voltammetry and Impedance Spectroscopy for Measuring the Concentration of Aqueous Solutions
| Autor: | Manuel Fiedler, Ingo Tobehn, Andrea Cyriax, Heike Wünscher, Arndt Steinke, Thomas Frank |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Sensors & Transducers, Vol 185, Iss 2, Pp 156-161 (2015) |
| ISSN: | 1726-5479 2306-8515 |
| Popis: | This article describes sensors for concentration measurement based on the electro- chemical properties of the liquid being measured. Herein two electrical methods, namely cyclic voltammetry and impedance spectroscopy, are being presented. The measurement can be performed quasi simultaneously using the same measurement medium. Further optimization of the combined methods is possible by adapting the geometric design of the electrode structure, the electrode material, the optional passivation and the electric coupling (galvanically or capacitively). In summary, by combining multiple sensory principles on a device it becomes possible to analyze mixtures of substances contained in a solution with respect to their composition. |
| Databáze: | OpenAIRE |
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