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Title: A self-consistent, multivariate method for the determination of gas-phase rate coefficients, applied to reactions of atmospheric VOCs and the hydroxyl radical
Journal: Atmos. Chem. Phys.
Volume: 18
Page(s): 4039 - 4054
Year: 2018
Reference type: Journal article
Squib: 2018SHA/LID4039-4054
Reaction:
3-Methylheptane + ·OH → Products
Reaction order:
2
Temperature:
323
K
Pressure: 1.00 bar
Rate expression:
1.4x10-11 [±2.0x10-12 cm3/molecule s]
Category: Experiment
Data type:
Derived from fitting to a complex mechanism
Pressure dependence:
None reported
Experimental procedure:
Static or low flow - Data taken vs time
Excitation technique:
Direct photolysis
Time resolution:
By end product analysis
Analytical technique:
GC-MS
Comments:
A new experimental method was reported for the simultaneous study of reactions between multiple different volatile organic compounds (VOCs) and OH. This technique is based upon established relative rate concepts but has the advantage of a much higher throughput of target VOCs. By evaluating multiple VOCs in each experiment, and through measurement of the depletion in each VOC after reaction with OH, the OH+VOC reaction rate coefficients were be derived. The reported uncertainty is 1σ.
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