Wall loss of semi-volatile organic compounds in a Teflon bag chamber for the temperature range of 262–298 K: mechanistic insight on temperature dependence
Longkun He,Wenli Liu,Yatai Li,Jixuan Wang,Mikinori Kuwata,and Yingjun Liu
SKL-ESPC, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
SEPKL-AERM, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
Wenli Liu
Department of Atmospheric and Oceanic Sciences and Laboratory for Climate and Ocean-Atmosphere Studies, School of Physics, Peking University, Beijing 100871, China
Department of Atmospheric and Oceanic Sciences and Laboratory for Climate and Ocean-Atmosphere Studies, School of Physics, Peking University, Beijing 100871, China
We experimentally investigated vapor wall loss of n-alkanes in a Teflon chamber across a wide temperature range. Increased wall loss was observed at lower temperatures. Further analysis suggests that lower temperatures enhance partitioning of n-alkanes to the surface layer of a Teflon wall but slow their diffusion into the inner layer. The results are important for quantitative analysis of chamber experiments conducted at low temperatures, simulating wintertime or upper-tropospheric conditions.
We experimentally investigated vapor wall loss of n-alkanes in a Teflon chamber across a wide...
