Articles | Volume 14, issue 6
https://doi.org/10.5194/amt-14-4033-2021
https://doi.org/10.5194/amt-14-4033-2021
Research article
 | 
03 Jun 2021
Research article |  | 03 Jun 2021

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

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Cited articles

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Atlas, E., Pollock, W., Greenberg, J., Heidt, L., and Thompson, A. M.: Alkyl nitrates, nonmethane hydrocarbons, and halocarbon gases over the equatorial pacific-ocean during SAGA-3, J. Geophys. Res.-Atmos., 98, 16933–16947, 1993. 
Ball, S. M., Langridge, J. M., and Jones, R. L.: Broadband cavity enhanced absorption spectroscopy using light emitting diodes, Chem. Phys. Lett., 398, 68–74, 2004. 
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Short summary
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.
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