Articles | Volume 13, issue 11
Atmos. Meas. Tech., 13, 6311–6323, 2020
https://doi.org/10.5194/amt-13-6311-2020

Special issue: Simulation chambers as tools in atmospheric research (AMT/ACP/GMD...

Atmos. Meas. Tech., 13, 6311–6323, 2020
https://doi.org/10.5194/amt-13-6311-2020

Research article 25 Nov 2020

Research article | 25 Nov 2020

Implementation of an incoherent broadband cavity-enhanced absorption spectroscopy technique in an atmospheric simulation chamber for in situ NO3 monitoring: characterization and validation for kinetic studies

Axel Fouqueau et al.

Data sets

Library of Advanced Data Products: Gas Phase Rate constants A. Fouqueau, A. Cirtog, M. Cazaunau, E. Pangui, P. Zapf, G. Siour, X. Landsheere, G. Méjean, D. Romanini, and B. Picquet-Varrault https://data.eurochamp.org/data-access/gas-phase-rate-constants/

Database of Atmospheric Simulation Chamber Studies A. Fouqueau, A. Cirtog, M. Cazaunau, E. Pangui, P. Zapf, G. Siour, X. Landsheere, G. Méjean, D. Romanini, and B. Picquet-Varrault https://data.eurochamp.org/data-access/chamber-experiments/

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Short summary
An incoherent broadband cavity-enhanced absorption spectroscopy (IBBCEAS) technique has been developed for the in situ monitoring of NO3 radicals in the CSA simulation chamber at LISA. The optical cavity allows a high sensitivity for NO3 detection up to 6 ppt for an integration time of 10 s. The technique is now fully operational and can be used to determine rate constants for fast reactions involving complex volatile organic compounds (with rate constants up to 10−10 cm3 molecule−1 s−1).