Ambient Radical Concentrations in the Presence of Airborne Liquid Water
作者： D. H. Stedman , J. G. Walega , C. A. Cantrell , J. P. Burrows , G. Tyndall
DOI: 10.1007/978-3-642-70627-1_14
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摘要: A new technique for the continuous measurement of peroxy- and oxy-radicals in air is based on chain reaction which these molecules participate to oxidize NO CO NO2 CO2. The produced measured by luminol chemiluminescence, gas-surface with a pH 12, 3 mM aqueous solution. from sources other than substitution N2 one-half time. Therefore, radical signal modulated determined difference. Somewhat discrepant calibration obtained measuring time dependence free decay, direct interface chemical modulation system HO2, CH3O2 CH3CO·O2 were produced. detection limit radicals this strong function variability ambient O3, but usually less 1 pptv can be detected. Under conditions when there significant liquid water content (fog/rain) no could
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