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Scientific Articles - PTR-MS Bibliography

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Publications

Found 7 results
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[Ghirardo2010b] Ghirardo, A., K. Koch, R. Taipale, I. Zimmer, J-P. Schnitzler, and J. Rinne, "Determination of de novo and pool emissions of terpenes from four common boreal/alpine trees by 13CO2 labelling and PTR-MS analysis.", Plant Cell Environ, vol. 33, no. 5: Karlsruhe Institute of Technology, Institute of Meteorology and Climate Research (IMK-IFU), Kreuzeckbahnstrasse 19, 82467 Garmisch-Partenkirchen, Germany., pp. 781–792, May, 2010.
Link: http://dx.doi.org/10.1111/j.1365-3040.2009.02104.x
Abstract
Boreal forests emit a large amount of monoterpenes into the atmosphere. Traditionally these emissions are assumed to originate as evaporation from large storage pools. Thus, their diurnal cycle would depend mostly on temperature. However, there is indication that a significant part of the monoterpene emission would originate directly from de novo synthesis. By applying 13CO2 fumigation and analyzing the isotope fractions with proton transfer reaction mass spectrometry (PTR-MS) and classical GC-MS, we determined the fractions of monoterpene emissions originating from de novo biosynthesis in Pinus sylvestris (58%), Picea abies (33.5%), Larix decidua (9.8%) and Betula pendula (100%). Application of the observed split between de novo and pool emissions from P. sylvestris in a hybrid emission algorithm resulted in a better description of ecosystem scale monoterpene emissions from a boreal Scots pine forest stand.
[Ghirardo2010] Ghirardo, A., K. Koch, R. Taipale, I. Zimmer, JÖRG-PETER. SCHNITZLER, and J. Rinne, "Determination of de novo and pool emissions of terpenes from four common boreal/alpine trees by 13CO2 labelling and PTR-MS analysis", Plant, Cell & Environment, vol. 33, no. 5: Wiley Online Library, pp. 781–792, 2010.
Link: http://onlinelibrary.wiley.com/doi/10.1111/j.1365-3040.2009.02104.x/full
Abstract
Boreal forests emit a large amount of monoterpenes into the atmosphere. Traditionally these emissions are assumed to originate as evaporation from large storage pools. Thus, their diurnal cycle would depend mostly on temperature. However, there is indication that a significant part of the monoterpene emission would originate directly from de novo synthesis. By applying 13CO2 fumigation and analyzing the isotope fractions with proton transfer reaction mass spectrometry (PTR-MS) and classical GC-MS, we determined the fractions of monoterpene emissions originating from de novo biosynthesis in Pinus sylvestris (58%), Picea abies (33.5%), Larix decidua (9.8%) and Betula pendula (100%). Application of the observed split between de novo and pool emissions from P. sylvestris in a hybrid emission algorithm resulted in a better description of ecosystem scale monoterpene emissions from a boreal Scots pine forest stand.
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[Taipale2010] Taipale, R., T. M. Ruuskanen, and J. Rinne, "Lag time determination in DEC measurements with PTR-MS", Atmospheric Measurement Techniques Discussions, vol. 3, no. 1: Copernicus GmbH, pp. 405–429, 2010.
Link: http://www.atmos-meas-tech-discuss.net/3/405/2010/
Abstract
The disjunct eddy covariance (DEC) method has emerged as a popular technique for micrometeorological flux measurements of volatile organic compounds (VOCs). It has usually been combined with proton transfer reaction mass spectrometry (PTR-MS), an online technique for VOC concentration measurements. However, the determination of the lag time between wind and concentration measurements has remained an important challenge. To address this conundrum, we studied the effect of different lag time methods on DEC fluxes. The analysis was based on both actual DEC measurements with PTR-MS and simulated DEC data derived from high frequency H2O measurements with an infrared gas analyzer. Conventional eddy covariance fluxes of H2O served as a reference in the DEC simulation. The individual flux measurements with PTR-MS were rather sensitive to the lag time methods, but typically this effect averaged out when the median fluxes were considered. The DEC simulation revealed that the maximum covariance method was prone to overestimation of the absolute values of fluxes. The constant lag time methods, one resting on a value calculated from the sampling flow and the sampling line dimensions and the other on a typical daytime value, had a tendency to underestimate. The visual assessment method and our new averaging approach based on running averaged covariance functions did not yield statistically significant errors and thus fared better than the habitual choice, the maximum covariance method. Given this feature and the potential for automatic flux calculation, we recommend using the averaging approach in DEC measurements with PTR-MS.
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[Ghirardo2010a] Ghirardo, A., K. Koch, R. Taipale, I. Zimmer, J-P. Schnitzler, and J. Rinne, "Monoterpene emissions from boreal tree species: Determination of de novo and pool emissions", EGU General Assembly Conference Abstracts, vol. 12, pp. 2448, 2010.
Link: http://adsabs.harvard.edu/abs/2010EGUGA..12.2448G
Abstract
Boreal forests emit a large amount of monoterpenes into the atmosphere. Traditionally these emissions are assumed to originate as evaporation from large storage pools. Thus their diurnal cycle would depend mostly on temperature. However, there is indication that a significant part of the monoterpene emission would originate directly from de novo synthesis. By applying 13CO2 fumigation and analyzing the isotope fractions with proton transfer reaction mass spectrometry (PTR-MS) and classical GC-MS we studied the origin of monoterpene emissions from some major Eurasian boreal and alpine tree species. We determined the fractions originating from de novo biosynthesis and from large internal monoterpene storages for three coniferous tree species with specialized monoterpene storage structures and one dicotyledon species without such structures. The emission from dicotyledon species Betula pendula originated solely from the de novo synthesis. The origin of the emissions from coniferous species was mixed with varying fraction originating from de novo synthesis (Pinus sylvestris 58 %, Picea abies 33.5 %, Larix decidua 9.8 %) and the rest from large internal monoterpene storage pools. We have also measured the ecosystem scale monoterpene emission fluxes from a boreal Pinus sylvestris forest by disjunct eddy covariance technique. Application of the observed fraction of emission originating from de novo synthesis and large storage pools in a hybrid emission algorithm resulted in a better description of ecosystem scale monoterpene emissions, as compared to the measured fluxes.
O
[Ruuskanen2005] Ruuskanen, T. M., P. Kolari, J. Bäck, M. Kulmala, J. Rinne, H. Hakola, R. Taipale, M. Raivonen, N. Altimir, and P. Hari, "On-line field measurements of monoterpene emissions from Scots pine by proton-transfer-reaction mass spectrometry", Boreal environment research, vol. 10, no. 6, pp. 553–567, 2005.
Link: http://www.helsinki.fi/herc/research/URPOpublications/URPO_Ruuskanen%20et%20al%2005%5B1%5D.pdf
[Rinne2005] Rinne, J., T. M. Ruuskanen, A. Reissell, R. Taipale, H. Hakola, and M. Kulmala, "On-line PTR-MS measurements of atmospheric concentrations of volatile organic compounds in a European boreal forest ecosystem", Boreal environment research, vol. 10, no. 5, pp. 425–436, 2005.
Link: http://www.borenv.net/BER/pdfs/ber10/ber10-425.pdf
V
[Taipale2009] Taipale, R., T. M. Ruuskanen, M. K. Kajos, J. Patokoski, H. Hakola, and J. Rinne, "VOC emissions from a boreal forest–direct ecosystem scale measurements by PTR-MS in 2006–2008", CONFERENCE SERIES, pp. 299, 2009.
Link: http://www.ionicon.com/sites/default/files/uploads/doc/contributions_ptr_ms_Conference_4.pdf

Featured Articles

Download Contributions to the International Conference on Proton Transfer Reaction Mass Spectrometry and Its Applications:

 

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).
Link

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.
Link

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.
Link

 

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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