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Scientific Articles - PTR-MS Bibliography

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Found 3 results
Title [ Year(Asc)]
Filters: Author is Guenther, AB  [Clear All Filters]
[Kim2011] Kim, S., S. Choi, M. Lee, J. Kim, S. Lee, E. Kang, AB. Guenther, A. Turnipseed, and T. Karl, "Roles of Forest in Photochemistry near Seoul, South Korea, Preliminary findings for understanding towards", AGU Fall Meeting Abstracts, vol. 1, pp. 0441, 2011.
Recently, multiple research have highlighted important roles of BVOCs to understand regional air qualities of megacities in East Asian. The findings strongly urge multi-faceted research on emission and oxidation processes of BVOCs and potential impacts on regional air quality from the interactions between biosphere and atmosphere. To address these emerging research topics in a longer term, National Institute of Environmental Research of South Korea established a research site in the Taehwa Research Forest, located at the edge of the Seoul Metropolitan Area (population   25 million). A 40 meter high tower was built in a pine tree plantation (Pinus Koraiensis), surrounded by a natural broad leaf ecosystem. Three inlets were configured to characterize trace gas gradients, above canopy(40 m), top of the canopy (23 m) and inside of the canopy (5 m) and multi-level meteorological sensors include PAR sensors were set up. In the laboratory space, high-sensitivity Ionicon PTR-MS, and CO, NOx, SO2, and ozone analyzers are operational for continuous gradient measurements. We will present preliminary gradient measurements results of both antropogenic and biogenic VOCs to quantify emission and deposition potential of the compounds.In addition, ozone and their precursors such as CO, NOx measurement results at the site will be presented to discuss biosphere-atmosphere interactions and their impacts towards regional air quality.
[Warneke2002] Warneke, C., SL. Luxembourg, JA. De Gouw, HJI. Rinne, AB. Guenther, and R. Fall, "Disjunct eddy covariance measurements of oxygenated volatile organic compounds fluxes from an alfalfa field before and after cutting", Journal of geophysical research, vol. 107, no. D8: American Geophysical Union, pp. 4067, 2002.
[1] There is interest in and significant uncertainty about the emissions of oxygenated volatile organic compounds (oxVOCs) from vegetation to the atmosphere. Here, we measured the fluxes of selected oxVOCs from an alfalfa field, before, during, and after cutting, using a combination of disjunct eddy covariance and proton-transfer-reaction mass spectrometry. Over the course of 1 day a significant methanol flux of 4 mg m−2 h−1 was observed from undisturbed alfalfa with a maximum at 0800 LT, possibly caused by the evaporation of dew. A smaller release of hexenals during this day (0.04 mg m−2 h−1) demonstrated the sensitivity of the method. Other results suggested that acetaldehyde and acetone were released in the afternoon but were lost by dry deposition in the evening and morning; deposition velocities were estimated to be 0.2 cm s−1 (acetaldehyde) and 0.09 cm s−1 (acetone). After the alfalfa was cut the emissions of methanol, acetaldehyde, acetone, and hexenals were significantly enhanced and remained high for three days during which the alfalfa was drying. After a rainstorm the oxVOC emissions from the cut, wet alfalfa increased even more. Nighttime measurements yielded low oxVOC fluxes in general, but the high variability of the concentrations during the night and the high degree of correlation between different oxVOCs suggest that the nighttime releases of oxVOCs from alfalfa were nonzero. This work suggests that the global source of oxVOCs due to the production of hay is of minor importance. The emission flux of methanol from vegetation during the growing season may be very large on a global basis.
[Rinne2001] Rinne, HJI., AB. Guenther, C. Warneke, JA. De Gouw, and SL. Luxembourg, "Disjunct eddy covariance technique for trace gas flux measurements", Geophysical Research Letters, vol. 28, no. 16, pp. 3139–3142, 2001.

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Selected PTR-MS related Reviews

F. Biasioli, C. Yeretzian, F. Gasperi, T. D. Märk: PTR-MS monitoring of VOCs and BVOCs in food science and technology, Trends in Analytical Chemistry 30 (7) (2011).

J. de Gouw, C. Warneke, T. Karl, G. Eerdekens, C. van der Veen, R. Fall: Measurement of Volatile Organic Compounds in the Earth's Atmosphere using Proton-Transfer-Reaction Mass Spectrometry. Mass Spectrometry Reviews, 26 (2007), 223-257.

W. Lindinger, A. Hansel, A. Jordan: Proton-transfer-reaction mass spectrometry (PTR–MS): on-line monitoring of volatile organic compounds at pptv levels, Chem. Soc. Rev. 27 (1998), 347-375.


Lists with PTR-MS relevant publications of the University of Innsbruck can be found here: Atmospheric and indoor air chemistry, IMR, Environmental Physics and Nano-Bio-Physics


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