P2.9.18 Electrochemical Cell Array for fast Sensor Evaluation
- 14th International Meeting on Chemical Sensors - IMCS 2012
2012-05-20 - 2012-05-23
- P2.9 Technology and Application
- H. Fischer, J. Frank, N. Sauerbaum, G. Matz - Hamburg University of Technology, Institute of Measurement Technology (Germany)
- 1751 - 1752
Electrochemical cells are important gas sensors for different substances. Every cell is adapted to its target gas by variation of the electrolyte, the electrodes and filter. Due to unwanted chemical reactions, the cells inherit different cross sensitivities to other gases. In order to investigate these often undocumented reactions to different substances a sensor array was developed. The array can be equipped with up to six different electrochemical cells, to which the test substance is applied simultaneously. It provides an adaptable amplification, a read-out electronic and a potentiostatic circuit if necessary. Several substances were evaluated and the results are presented.