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. 2019 Jun 29;19(13):2890. doi: 10.3390/s19132890

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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2f-WMS Photoacoustic signal measured by electrical microphone for different NH₃ concentrations (a) X-component. (b) Amplitude and (c) Linear fitting. The pressure is set to 1 atm, and temperature to 296 K.

2f-WMS Photoacoustic signal measured by electrical microphone for different NH₃ concentrations (a) X-component. (b) Amplitude and (c) Linear fitting. The pressure is set to 1 atm, and temperature to 296 K.