How to implement a selective colorimetric gas sensor with off the shelf components?

We report on how an inexpensive and very selective gas sensor can be implemented, simply combining colorimetric indicators casted on top of Scotch® tape, with a commercial microchip adapted here to measure optical reflectance. The system can be easily reproduced (leading to quantitatively consistent...

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Veröffentlicht in:	Sensors and actuators. B, Chemical Chemical, 2019-08, Vol.293, p.41-44
Hauptverfasser:	Driau, Christian, Fàbrega, Cristian, Benito-Altamirano, Ismael, Pfeiffer, Peter, Casals, Olga, Li, Hongqiang, Prades, Joan Daniel
Format:	Artikel
Sprache:	eng
Schlagworte:	Colorimetric sensor Colorimetry Detectors de gasos Detectors òptics Gas detectors Gas sensor Gas sensors Optical detectors Optical sensor Reflectance
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	We report on how an inexpensive and very selective gas sensor can be implemented, simply combining colorimetric indicators casted on top of Scotch® tape, with a commercial microchip adapted here to measure optical reflectance. The system can be easily reproduced (leading to quantitatively consistent results), refreshed and reconfigured to sense different target gases, just replacing the colorimetric tape.
ISSN:	0925-4005 1873-3077
DOI:	10.1016/j.snb.2019.04.117