NDLI: Determination of CH4, CO2 and N2O in air samples and soil atmosphere by gas chromatography mass spectrometry, GC-MS

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Determination of CH₄, CO₂ and N₂O in air samples and soil atmosphere by gas chromatography mass spectrometry, GC-MS

Content Provider	Royal Society of Chemistry (RSC)
Author	Wickstrøm, Torild Fongen, Monica Joner, Erik J. Ogner, Gunnar Ekeberg, Dag
Copyright Year	2004
Abstract	A method for determination of the climate gases CH4, CO2 and N2O in air samples and soil atmosphere was developed using GC-MS. The method uses straightforward gas chromatography (separation of the gases) with a mass spectrometric detector in single ion mode (specific determination). The gases were determined with high sensitivity and high sample throughput (18 samples h−1). The LOD (3σ) for the gases were 0.10 µL L−1 for CH4, 20 µL L−1 for CO2 and 0.02 µL L−1 for N2O. The linear range (R2 = 0.999) was up to 500 µL L−1 for CH4, 4000 µL L−1 for CO2 and 80 µL L−1 for N2O. The samples were collected in 10 mL vials and a 5 μL aliquot was injected on column. The method was tested against certified gas references, the analytical data gave an accuracy within ±5% and a precision of ±3%. The presence of ≤10% by volume of C2H2 (often used experimentally to prevent N2 formation from N2O) did not interfere with detection for the targeted trace gases.
Starting Page	621
Ending Page	623
Page Count	3
File Format	HTM / HTML PDF
ISSN	14640325
Volume Number	6
Issue Number	7
Journal	Journal of Environmental Monitoring
DOI	10.1039/b401315h
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Gas chromatography\u2013mass spectrometry Gas chromatography Chromatography detector Ion The Samples
Content Type	Text
Resource Type	Article
Subject	Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law

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