TY  - JOUR
A1  -  Ouma Emily Awuor
A1  -  Huszár Helga
A1  -  Horváth László
A1  -  Szabó Gábor
A1  -  Bozóki Zoltán
TI  - Possible environmental applications of a recently developed ammonia isotope monitoring photoacoustic system
AV  - restricted
SN  - 0324-6329
UR  - https://doi.org/10.28974/idojaras.2023.1.3
ID  - publicatio27017
IS  - 1
VL  - 127
JF  - ID?JÁRÁS / QUARTERLY JOURNAL OF THE HUNGARIAN METEOROLOGICAL SERVICE
N1  - Department of Optics and Quantum Electronics, University of Szeged, Dóm tér 9, Szeged, H-6720, Hungary            
            ELKH-SZTE Research Group for Photoacoustic Monitoring of Environmental Processes, Dóm tér 9, Szeged, H-6720, Hungary            
            Export Date: 13 April 2023            
            Correspondence Address: Horváth, L.; Department of Optics and Quantum Electronics, Dóm tér 9, Hungary; email: horvathl@titan.physx.u-szeged.hu            
            Funding details: Hungarian Scientific Research Fund, OTKA, K-138176            
            Funding details: Magyar Tudományos Akadémia, MTA            
            Funding details: Tempus Közalapítvány, TPF            
            Funding text 1: Acknowledgements: Emily Awuor Ouma wishes to acknowledge the Tempus Public Foundation for the award of the Stipendium Hungaricum Scholarship, which enabled and provided the platform to be able to carry out this research. This work was supported by the Hungarian Research and Technology Innovation Fund (OTKA), project no. K-138176, and the Sustainable Development and Technologies Programme of the Hungarian Academy of Sciences (FFT NP FTA).
EP  - 53
N2  - Ammonia is one of the most significant environmental pollutants. Concentration measurements, identifying the sources and studying the transformations in the biosphere are essential, and they are the focus of many investigations. The near-infrared (?1530 nm) photoacoustic method for simultaneous and selective determination of 14NH3/15NH3 isotopologues reported here can be suitable for monitoring these phenomena and processes. So far, the photoacoustic method has not been used for this kind of examination. The application of our measurement method makes it possible to eliminate the disadvantages of the previous measurement methods. The detection limit of the PA system is 0.14 ppm and 0.73 ppm for 14NH3 and 15NH3, respectively, which can be improved by orders of magnitude with further development of sampling and measurement techniques.
Y1  - 2023///
SP  - 43
ER  -