Results 11 to 20 of about 1,487 (151)

Monoterpene Chemical Speciation with High Time Resolution Using a FastGC/PTR-MS: Results from the COV³ER Experiment on Quercus ilex

Atmosphere, 2020
Monoterpenes (MTs) represent an important family of biogenic volatile organic compounds (BVOCs) in terms of amount and chemical diversity. This family has been extensively studied using gas chromatography (GC) and proton transfer reaction-mass ...
Sandy Bsaibes, Felix Piel, Valérie Gros, François Truong, Florence Lafouge, Raluca Ciuraru, Pauline Buysse, Julien Kammer, Benjamin Loubet, Michael Staudt   +9 more
doaj   +5 more sources

On the use of TabPFN on mass spectrometry analysis of volatile organic compounds [PDF]

Scientific Reports
Volatile organic compounds (VOCs) are key markers in applications ranging from food quality assessment to medical diagnostics that can be profiled, for example, by gas chromatography–mass spectrometry (GC-MS) or by direct injection mass spectrometry (e.g.
Pablo M. Granitto, Emanuela Betta, Iuliia Khomenko, Michele Pedrotti, Andrea Romano, Franco Biasioli   +5 more
doaj   +2 more sources

Exploring morphological aspects, cuticle size and volatile compounds in the fruits of four olive cultivars as possibly interdependent components of Bactrocera oleae tolerance [PDF]

Frontiers in Plant Science
Olea europaea L. subsp. europaea, var. europaea, plays a crucial role in cultural identity and economic prosperity across many regions of the Mediterranean Basin.
Cosimo Taiti, Luca Lombardo, Gianluca Godino, Luciana Renna, Elisa Masi, Elettra Marone, Marta Beccaluva, Marta Beccaluva, Annamaria Ienco, Samanta Zelasco, Santina Rizzo, Enzo Perri, Marianna Rizzo, Pierluigi Rizzo, Veronica Vizzarri, Giovanni Spinelli, Piero Fiorino, Stefano Mancuso, Giovanni Stefano   +18 more
doaj   +2 more sources

Oxygenated volatile organic compounds (VOCs) as significant but varied contributors to VOC emissions from vehicles [PDF]

Atmospheric Chemistry and Physics, 2022
Vehicular emissions are an important source for volatile organic compounds (VOCs) in urban and downwind regions. In this study, we conducted a chassis dynamometer study to investigate VOC emissions from vehicles using gasoline, diesel, and liquefied ...
S. Wang, S. Wang, B. Yuan, B. Yuan, C. Wu, C. Wu, C. Wang, C. Wang, T. Li, T. Li, X. He, X. He, Y. Huangfu, Y. Huangfu, J. Qi, J. Qi, X.-B. Li, X.-B. Li, Q. Sha, Q. Sha, M. Zhu, M. Zhu, S. Lou, H. Wang, T. Karl, M. Graus, Z. Yuan, M. Shao, M. Shao   +28 more
doaj   +1 more source

Selectivity Beyond Mass: Real-Time Isomer Separation Using SLIM IMS Coupled to PTR-MS. [PDF]

J Mass Spectrom
ABSTRACT Proton‐transfer‐reaction—mass spectrometry (PTR‐MS) provides real‐time analysis of volatile organic compounds (VOCs) relevant to atmospheric research, food and flavor characterization, industrial process control, and medical applications. However, PTR‐MS is inherently limited in its ability to resolve isomers of molecules with the same mass‐to‐
Jordan J, Jordan A, Lindinger C, Hanel G, Fügenschuh T, Beyer MK, Sulzer P.   +6 more
europepmc   +2 more sources

Volatilomics of raspberry fruit germplasm by combining chromatographic and direct-injection mass spectrometric techniques

Frontiers in Molecular Biosciences, 2023
The application of direct-injection mass spectrometric (DI-MS) techniques, like Proton Transfer Reaction Time of Flight Mass Spectrometry (PTR-ToF-MS) has been suggested as a reliable phenotyping tool for fruit volatilome assessment in both genetic and ...
Brian Farneti, Iuliia Khomenko, Matteo Ajelli, Karen Elizabeth Wells, Emanuela Betta, Eugenio Aprea, Eugenio Aprea, Lara Giongo, Franco Biasioli   +8 more
doaj   +1 more source

Measurement report: Important contributions of oxygenated compounds to emissions and chemistry of volatile organic compounds in urban air [PDF]

Atmospheric Chemistry and Physics, 2020
Volatile organic compounds (VOCs) play important roles in the tropospheric atmosphere. In this study, VOCs were measured at an urban site in Guangzhou, one of the megacities in the Pearl River Delta (PRD), using a gas chromatograph–mass spectrometer ...
C. Wu, C. Wu, C. Wang, C. Wang, S. Wang, S. Wang, W. Wang, B. Yuan, B. Yuan, J. Qi, J. Qi, B. Wang, H. Wang, C. Wang, W. Song, X. Wang, W. Hu, S. Lou, C. Ye, Y. Peng, Y. Peng, Z. Wang, Z. Wang, Y. Huangfu, Y. Huangfu, Y. Xie, M. Zhu, J. Zheng, J. Zheng, X. Wang, X. Wang, B. Jiang, B. Jiang, Z. Zhang, Z. Zhang, M. Shao, M. Shao   +36 more
doaj   +1 more source

Comparison of advanced offline and in situ techniques of organic aerosol composition measurement during the CalNex campaign [PDF]

Atmospheric Measurement Techniques, 2015
Our understanding of formation processes, physical properties, and climate/health effects of organic aerosols is still limited in part due to limited knowledge of organic aerosol composition.
J. Timkovsky, A. W. H. Chan, T. Dorst, A. H. Goldstein, B. Oyama, R. Holzinger   +5 more
doaj   +1 more source

Comparison of different real time VOC measurement techniques in a ponderosa pine forest [PDF]

Atmospheric Chemistry and Physics, 2013
Volatile organic compound (VOC) mixing ratios measured by five independent instruments are compared at a forested site dominated by ponderosa pine (Pinus Ponderosa) during the BEACHON-ROCS field study in summer 2010.
L. Kaser, T. Karl, R. Schnitzhofer, M. Graus, I. S. Herdlinger-Blatt, J. P. DiGangi, B. Sive, A. Turnipseed, R. S. Hornbrook, W. Zheng, F. M. Flocke, A. Guenther, F. N. Keutsch, E. Apel, A. Hansel   +14 more
doaj   +1 more source

Eddy covariance emission and deposition flux measurements using proton transfer reaction – time of flight – mass spectrometry (PTR-TOF-MS): comparison with PTR-MS measured vertical gradients and fluxes [PDF]

Atmospheric Chemistry and Physics, 2013
During summer 2010, a proton transfer reaction – time of flight – mass spectrometer (PTR-TOF-MS) and a quadrupole proton transfer reaction mass spectrometer (PTR-MS) were deployed simultaneously for one month in an orange orchard in the Central Valley of
R. Weber, J. Karlik, S. Fares, J. Timkovsky, A. H. Goldstein, J.-H. Park, R. Holzinger   +6 more
doaj   +1 more source