Simultaneous detection of C 2 H 6 , CH 4 , and δ 13 C-CH 4 using optical feedback cavity-enhanced absorption spectroscopy in the mid-infrared region: towards application for dissolved gas measurements Article Swipe
Loïc Lechevallier
,
Roberto Grilli
,
Erik Kerstel
,
D. Romanini
,
J. Chappellaz
·
YOU?
·
· 2019
· Open Access
·
· DOI: https://doi.org/10.5194/amt-12-3101-2019
YOU?
·
· 2019
· Open Access
·
· DOI: https://doi.org/10.5194/amt-12-3101-2019
Simultaneous measurement of C2H6 and CH4 concentrations, and of the δ13C-CH4 isotope ratio is demonstrated using a cavity-enhanced absorption spectroscopy technique in the mid-IR region. The spectrometer is compact and has been designed for field operation. It relies on optical-feedback-assisted injection of 3.3 µm radiation from an interband cascade laser (ICL) into a V-shaped high-finesse optical cavity. A minimum absorption coefficient of 2.8×10-9 cm−1 is obtained in a single scan (0.1 s) over 0.7 cm−1. Precisions of 3 ppbv, 11 ppbv, and 0.08 ‰ for C2H6, CH4, and δ13C-CH4, respectively, are achieved after 400 s of integration time. Laboratory calibrations and tests of performance are reported here. They show the potential for the spectrometer to be embedded in a sensor probe for in situ measurements in ocean waters, which could have important applications for the understanding of the source and fate of hydrocarbons from the seabed and in the water column.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.5194/amt-12-3101-2019
- https://amt.copernicus.org/articles/12/3101/2019/amt-12-3101-2019.pdf
- OA Status
- gold
- Cited By
- 32
- References
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- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W2900528716
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- DOI
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https://doi.org/10.5194/amt-12-3101-2019Digital Object Identifier
- Title
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Simultaneous detection of C 2 H 6 , CH 4 , and δ 13 C-CH 4 using optical feedback cavity-enhanced absorption spectroscopy in the mid-infrared region: towards application for dissolved gas measurementsWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2019Year of publication
- Publication date
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2019-06-12Full publication date if available
- Authors
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Loïc Lechevallier, Roberto Grilli, Erik Kerstel, D. Romanini, J. ChappellazList of authors in order
- Landing page
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https://doi.org/10.5194/amt-12-3101-2019Publisher landing page
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https://amt.copernicus.org/articles/12/3101/2019/amt-12-3101-2019.pdfDirect link to full text PDF
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YesWhether a free full text is available
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goldOpen access status per OpenAlex
- OA URL
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https://amt.copernicus.org/articles/12/3101/2019/amt-12-3101-2019.pdfDirect OA link when available
- Concepts
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Chemistry, Analytical Chemistry (journal), Spectrometer, Absorption (acoustics), Absorption spectroscopy, Optics, Physics, ChromatographyTop concepts (fields/topics) attached by OpenAlex
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32Total citation count in OpenAlex
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2025: 5, 2024: 7, 2023: 4, 2022: 5, 2021: 8Per-year citation counts (last 5 years)
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10Other works algorithmically related by OpenAlex
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