当前位置: X-MOL 学术Atmos. Meas. Tech. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Reactive uptake coefficients for multiphase reactions determined by a dynamic chamber system
Atmospheric Measurement Techniques ( IF 3.8 ) Pub Date : 2022-11-09 , DOI: 10.5194/amt-15-6433-2022
Guo Li, Hang Su, Meng Li, Uwe Kuhn, Guangjie Zheng, Lei Han, Fengxia Bao, Ulrich Pöschl, Yafang Cheng

Dynamic flow-through chambers are frequently used to measure gas exchange rates between the atmosphere and biosphere on the Earth's surface such as vegetation and soils. Here, we explore the performance of a dynamic chamber system in determining the uptake coefficient γ of exemplary gases (O3 and SO2) on bulk solid-phase samples. After characterization of the dynamic chamber system, the derived γ is compared with that determined from a coated-wall flow tube system. Our results show that the dynamic chamber system and the flow tube method show a good agreement for γin the range of 10−8 to 10−3. The dynamic chamber technique can be used for liquid samples and real atmospheric aerosol samples without complicated coating procedures, which complements the existing techniques in atmospheric kinetic studies.

中文翻译:

由动态室系统确定的多相反应的反应吸收系数

动态流通室经常用于测量地球表面的大气和生物圈(如植被和土壤)之间的气体交换率。在这里,我们探讨了动态室系统在确定块状固相样品上示例性气体(O 3和 SO 2 )的吸收系数γ方面的性能。在对动态室系统进行表征后,将导出的γ与从涂层壁流管系统确定的 γ 进行比较。我们的结果表明,动态室系统和流管方法 在 10 -8到 10 -3范围内显示出良好的γ一致性. 动态室技术可用于液体样品和真实大气气溶胶样品,无需复杂的涂层程序,是对大气动力学研究中现有技术的补充。
更新日期:2022-11-09
down
wechat
bug