Assessment of vibrational-translational relaxation dynamics of methane isotopologues in a wet-nitrogen matrix through QEPAS

Assessment of vibrational-translational relaxation dynamics of methane isotopologues in a wet-nitrogen matrix through QEPAS

Here we report on a study of the non-radiative relaxation dynamic of 12CH4 and 13CH4 in wet nitrogen-based matrixes by using the quartz-enhanced photoacoustic spectroscopy (QEPAS) technique. The dependence of the QEPAS signal on pressure at fixed matrix composition and on H2O concentration at fixed...

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Bibliographic Details
Main Authors: Mariagrazia Olivieri, Marilena Giglio, Stefano Dello Russo, Giansergio Menduni, Andrea Zifarelli, Pietro Patimisco, Angelo Sampaolo, Hongpeng Wu, Lei Dong, Vincenzo Spagnolo
Format: Article
Language:English
Published: Elsevier 2023-06-01
Series:Photoacoustics
Subjects:
Methane isotopologues
Relaxation rates
Quartz-enhanced photoacoustic spectroscopy
Trace gas sensing
Quantum cascade laser
Online Access:http://www.sciencedirect.com/science/article/pii/S221359792300071X

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http://www.sciencedirect.com/science/article/pii/S221359792300071X

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