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Posts Tagged ‘Science’

PTR-TOF Technology helps understanding how forests grow clouds

Emissions from forests influence very first stage of cloud formation – VOC concentration in CERN’s CLOUD chamber measured with PTR-TOF-MS.

In a paper published in the prestigious journal Science today, CERN’s CLOUD experiment has shown that biogenic vapours emitted by trees and oxidised in the atmosphere have a significant impact on the formation of clouds, thus helping to cool the planet.

Organic vapor concentrations such as Pinanediol were measured in the CLOUD chamber by scientists from the “Institut für Ionenphysik und Angewandte Physik” of the University of Innsbruck using advanced PTR-TOF technology, allowing for real-time quantification of tiniest concentrations of volatile organic compounds (VOCs).

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IONICON PTR-TOF-MS helps providing new insights and a SCIENCE paper

Extremely large range of VOCs are a challenge to current emission, air quality, and global climate models.

J.-H. Park et al. were relying on an IONICON PTR-TOF 8000 instrument to study fluxes of an unprecedented number of volatile organic compounds (VOCs) simultaneously. Their results, “Active Atmosphere-Ecosystem Exchange of the Vast Majority of Detected Volatile Organic Compounds“, have recently been published in the prestigious SCIENCE Magazine. Using traditional measurement techniques, monitoring of VOCs was limited to a few selected compounds, the authors explain, whereas PTR-TOFMS technology reveals 186 organic ions with a net deposition, and 494 that have bidirectional flux.

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