Articles | Volume 12, issue 4
Atmos. Meas. Tech., 12, 2499–2512, 2019
https://doi.org/10.5194/amt-12-2499-2019

Special issue: Advances in cavity-based techniques for measurements of atmospheric...

Atmos. Meas. Tech., 12, 2499–2512, 2019
https://doi.org/10.5194/amt-12-2499-2019

Research article 24 Apr 2019

Research article | 24 Apr 2019

Development of an incoherent broadband cavity-enhanced absorption spectrometer for measurements of ambient glyoxal and NO2 in a polluted urban environment

Shuaixi Liang et al.

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Latest update: 10 May 2021
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Short summary
A home-built instrument of an incoherent broadband cavity-enhanced absorption spectrometer is reported for sensitive detection of CHOCHO and NO2 in China's highly polluted environment. An NO2 spectral profile measured using the same spectrometer is applied as a reference spectral profile in the subsequent atmospheric spectral analysis and retrieval of NO2 and CHOCHO. This will provide an idea for solving the problem of cross-interference of strongly absorbing gases in weakly absorbing gases.