Screen-printed dissolved oxygen sensor based on cerium oxide-supported silver catalyst and polydimethylsiloxane film
Isao Shitanda1, Shunsuke Mori, Masayuki Itagaki
1Faculty of Science and Technology, Tokyo University of Science, Noda, Chiba, Japan. shitanda@rs.noda.tus.ac.jp
Abstract:
A screen-printed dissolved oxygen sensor was fabricated using cerium oxide-supported silver catalyst and polydimethylsiloxane (PDMS) film. A PDMS film of 3 µm thickness showed good permeability for oxygen and impermeability for hydrogen peroxide. The calibration curve has shown a linear relationship with a correlation coefficient of 0.996 for the dissolved oxygen concentration. The sensitivity and detection limit of the present sensor were calculated at -158 µA mM(-1) and 8.4 µM, respectively.
