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用放电流动-共振荧光方法(DF-RF)研究SO_2+OH+M反应。讨论了壁反应,扩散和副反应对速率常数测定的影响,确定该反应在298K下氩和氮气氛中反应比速的数据分别是(1.5±0.32)×10~(-31)cm~6molec~(-2)s~(-1)和(3.6±0.79)×10~(-31)cm~6molec~(-2)s~(-1)。
The SO_2 + OH + M reaction was studied by discharge flow-resonance fluorescence (DF-RF). The effects of wall reaction, diffusion and side reaction on the determination of rate constant were discussed. The data of the reaction at 298K in argon and nitrogen were (1.5 ± 0.32) × 10 ~ (-31) cm ~ 6molec ~ (-2) s ~ (-1) and (3.6 ± 0.79) × 10 ~ (-31) cm ~ 6molec ~ (-2) s ~ (-1).