Zugriffsnummer 54861
Dokumenttyp Zeitschriftenartikel Open Access Hybrid
Peer Review mit Peer Review
Sprache Englisch
Titel Absorption cross sections of CHF3 (HFC-23) in synthetic air at 296 K.
Autor(in); Institution
Berezkin, Kirill; 3.1, Allgemeine und Anorganische Chemie, PTB-Braunschweig
Li, Gang; 3.1, Allgemeine und Anorganische Chemie, PTB-Braunschweig
Lüttschwager, Nils; Georg-August-Universität Göttingen, Göttingen, GERMANY
Kim, Mi Eon; 3.4, Analytische Chemie der Gasphase, PTB-Braunschweig
Bohlius, Henning; 3.4, Analytische Chemie der Gasphase, PTB-Braunschweig
Ebert, Volker; 3.01, Metrologische Grundlagen der Gasanalytik, PTB-Braunschweig
Harrison, Jeremy; National Centre for Earth Observation, Leicester, UK; School of Physics and Astronomy, University of Leicester, Leicester, UK
Domanskaya, Alexandra; 3.1, Allgemeine und Anorganische Chemie, PTB-Braunschweig
Quelle/Jahr Journal of Quantitative Spectroscopy and Radiative Transfer: 347 (2025), 1 - 10
Artikelnummer 109642
ISSN 0022-4073 (print) ; 1879-1352 (online)
DOI
Verlag Oxford: Elsevier
Freie Schlagworte Fluoroform ; HFC-23 ; IR ; Vibration ; Fundamental ; Combination ; Band strength ; Uncertainty ; Absorption
Zusammenfassung We report high accuracy absorption cross sections of fluoroform (CHF3) in synthetic air at 296 K. The measured FTIR spectra underwent extensive processing, yielding accurate integrated intensity values for seven ro-vibrational bands in the mid-infrared region. Integrated cross sections in the regions of the major fundamental bands , and dyad have expanded uncertainties below 1.3 % (k = 2). Integrated cross sections in the region of combination bands and were determined with uncertainties less than 2 % (k = 2). Comparison of the integrals with values from the PNNL database showed consistency between both datasets. The influence of self-broadening effects of the spectral profiles, and the impact on the averaging procedures employed in the PNNL database and the current work are addressed. Experimental spectra and the corresponding composite spectra are available online in two archives: doi:10.7795/720.20250709 (experimental cross sections) and doi:10.7795/720.20250708 (composite spectra).
Relation
Kostenfreier Zugang Open Access Hybrid
Rechteinformation CC BY 4.0 ; Creative Commons Attribution 4.0 License
Themenbereich der Metrologie Metrologie in der Chemie und Stoffeigenschaften

Zitierung

Berezkin, K., Li, G., Lüttschwager, N., Kim, M. E., Bohlius, H., Ebert, V., Harrison, J., & Domanskaya, A. (2025). Absorption cross sections of CHF3 (HFC-23) in synthetic air at 296 K. Journal of Quantitative Spectroscopy and Radiative Transfer, 347, 1–10. https://doi.org/10.1016/j.jqsrt.2025.109642

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