SM2.1 - Coulometry and Signal Enhancement for Microfluidic Systems
- Event
- 17th International Meeting on Chemical Sensors - IMCS 2018
2018-07-15 - 2018-07-19
Vienna, Austria - Chapter
- Sensor Systems and Microfluidics 2
- Author(s)
- H. Suzuki - University of Tsukuba, Tsukuba, Ibaraki (Japan)
- Pages
- 388 - 389
- DOI
- 10.5162/IMCS2018/SM2.1
- ISBN
- 978-3-9816876-9-9
- Price
- free
Abstract
In analyzing components in a solution of a very small volume, coulometry is advantageous. Sensitivity and detection limit can be improved by strategies including appropriate designing of the working electrode, coupling of the oxidation of an analyte with deposition of silver in a different flow channel, and replacement of a liquid junction that connects two flow channels with a metal wire. These techniques were actually effective in improving the performance of our microfabricated coulometric devices.