Thermal dissociation cavity-enhanced absorption spectrometer for measuring NO2, RO2NO2, and RONO2 in the atmosphere
Chunmeng Li,Haichao Wang,Xiaorui Chen,Tianyu Zhai,Shiyi Chen,Xin Li,Limin Zeng,and Keding Lu
Chunmeng Li
State Key Joint Laboratory of Environmental Simulation and Pollution
Control, College of Environmental Sciences and Engineering, Peking
University, Beijing, 100871, China
State Key Joint Laboratory of Environmental Simulation and Pollution
Control, College of Environmental Sciences and Engineering, Peking
University, Beijing, 100871, China
School of Atmospheric Sciences, Sun Yat-sen University, Zhuhai,
Guangdong, 510275, China
Guangdong Provincial Observation and Research Station for Climate
Environment and Air Quality Change in the Pearl River Estuary, Key
Laboratory of Tropical Atmosphere-Ocean System, Ministry of Education,
Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai),
Zhuhai, 519082, China
Xiaorui Chen
State Key Joint Laboratory of Environmental Simulation and Pollution
Control, College of Environmental Sciences and Engineering, Peking
University, Beijing, 100871, China
State Key Joint Laboratory of Environmental Simulation and Pollution
Control, College of Environmental Sciences and Engineering, Peking
University, Beijing, 100871, China
Shiyi Chen
State Key Joint Laboratory of Environmental Simulation and Pollution
Control, College of Environmental Sciences and Engineering, Peking
University, Beijing, 100871, China
State Key Joint Laboratory of Environmental Simulation and Pollution
Control, College of Environmental Sciences and Engineering, Peking
University, Beijing, 100871, China
Limin Zeng
State Key Joint Laboratory of Environmental Simulation and Pollution
Control, College of Environmental Sciences and Engineering, Peking
University, Beijing, 100871, China
State Key Joint Laboratory of Environmental Simulation and Pollution
Control, College of Environmental Sciences and Engineering, Peking
University, Beijing, 100871, China
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We present a feasible instrument for the measurement of NO2, total peroxy nitrates (PNs, RO2NO2), and total alkyl nitrates (ANs, RONO2) in the atmosphere. The instrument samples sequentially from three channels at different temperature settings and then measures spectra using one cavity-enhanced absorption spectrometer. The concentrations are determined by spectral fitting and corrected using the lookup table method conveniently. The instrument will promote the study of PNs and ANs.
We present a feasible instrument for the measurement of NO2, total peroxy nitrates (PNs,...
