Articles | Volume 7, issue 1
https://doi.org/10.5194/jsss-7-235-2018
Special issue:
https://doi.org/10.5194/jsss-7-235-2018
Regular research article
 | 
05 Apr 2018
Regular research article |  | 05 Apr 2018

Highly sensitive benzene detection with metal oxide semiconductor gas sensors – an inter-laboratory comparison

Tilman Sauerwald, Tobias Baur, Martin Leidinger, Wolfhard Reimringer, Laurent Spinelle, Michel Gerboles, Gertjan Kok, and Andreas Schütze

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Latest update: 20 Nov 2024
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Short summary
For detection of benzene, a multichannel gas sensor system was tested in two different laboratories at the concentration range from 0.5 ppb up to 10 ppb. A model is used to extract the channels and multilinear regression is done to compensate cross interference to other gases. Depending on the measurement conditions, the quantification accuracy is between ±0.2 ppb and ±2 ppb. Regression models for one laboratory were transferable between the labs under comparable measurement conditions.
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