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.

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