2006 | OriginalPaper | Chapter
Simulation Chamber Study of the Oxidation of Acetic Acid by OH Radicals: Detection of Reaction Products by CW-CRDS in the Near-Infrared Range
Authors : Sabine Crunaire, Christa Fittschen, Bernard Lemoine, Alexandre Tomas, Patrice Coddeville
Published in: Environmental Simulation Chambers: Application to Atmospheric Chemical Processes
Publisher: Springer Netherlands
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The branching ratio for the reaction of OH radicals with CH3COOD was determined at 298 2±K and at atmospheric pressure using an indoor smog chamber (300 L) coupled to two different detection systems: (i) Gas Chromatograph (GC) with FTIR detection for determination of [CH3COOD], (ii) Cavity Ring Down Spectroscopy (CRDS) using a telecommunication diode laser as a source for the determination of [HDO] and [H2O]. The reaction CH3COOD + OH occurs via D-atom abstraction with an efficiency of 36±20 %.