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During investigations of the formation of volatile organic compounds (VOCs) in leaves, we observed C5 VOCs during leaf drying, senescence, and following freeze-thaw damage. VOCs were quantified by proton-transfer-reaction mass spectrometry (PTR-MS). In freeze-damaged leaves, VOC products were verified with a gas chromatography PTR-MS system, showing that a variety of plants produced 1-penten-3-ol...
Biogenic oxygenated volatile organic compound (VOC) fluxes have been directly measured by eddy covariance using the combination of a fast response, real-time VOC sensor and an acoustic anemometer. VOC detection is based on proton-transfer reaction mass spectrometry which has currently a response time of ca. 0.8s and the system is suitable for making nearly unattended, long-term and continuous measurements...
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