Articles | Volume 9, issue 1
J. Sens. Sens. Syst., 9, 89–97, 2020

Special issue: Sensors and Measurement Systems 2019

J. Sens. Sens. Syst., 9, 89–97, 2020
Review paper
05 Mar 2020
Review paper | 05 Mar 2020

Miniaturized photoacoustic detection of organofluorine-based refrigerants

Mahmoud El-Safoury et al.

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Cited articles

Bell, A. G.: On the production and reproduction of sound by light, Am. J. Sci., 20, 305–324, 1880. 
Bozóki, Z., Pogány, A., and Szabó, G.: Photoacoustic Instruments for Practical Applications: Present, Potentials, and Future Challenges, Appl. Spectrosc. Rev., 46, 1–37, 2011. 
El-Safoury, M. and Weber, C.: Miniaturized photoacoustic detection of organofluorine-based refrigerants,, 2020. 
European Union: Directive 2006/40/EC of the European Parliament and of the Council of 17 May 2006 relating to emissions from air-conditioning systems in motor vehicles and Amending Council Directive 70/156/EEC, Off. J. Eur. Union, 12–18, 2006. 
Harren, F. J. M., Mandon, J., and Cristescu, S. M.: Photoacoustic spectroscopy in trace gas monitoring, in: Encyclopedia of Analytical Chemistry: Applications, Theory and Instrumentation, John Wiley & Sons Ltd, 2006. 
Short summary
The refrigerant R134a is classified as a greenhouse gas and was banned from use (in vehicles) by the European Union in 2017 due to its contribution to global warming. The more expensive alternative refrigerant R1234yf is considered an environmentally less harmful alternative owing to its significantly lower global warming potential. Our newly developed gas detector can detect both refrigerants separately and, thus, help prevent the use of illegal gas mixtures that contain both refrigerants.