Title :

Novel Broadband Cavity-Enhanced Absorption Spectrometer for Simultaneous Measurements of NO2 and Particulate Matter

Author(s) :

Wang, Gaoxuan [Auteur]
Zhejiang University [Hangzhou, China]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Meng, Lingshuo [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Gou, Qian [Auteur]
Chongqing University [Chongqing]
Hanoune, Benjamin [Auteur]
Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522
Crumeyrolle, Suzanne [Auteur]
Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518
Fagniez, Thomas [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Coeur, Cécile [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]
Akiki, Rony [Auteur]
Chen, Weidong [Auteur]
Laboratoire de Physico-Chimie de l'Atmosphère [LPCA]

Journal title :

Analytical Chemistry

Abbreviated title :

Anal. Chem.

Volume number :

95

Pages :

3460-3467

Publisher :

American Chemical Society (ACS)

Publication date :

2023-01-30

HAL domain(s) :

Chimie/Chimie théorique et/ou physique

English abstract : [en]

A novel instrument based on broadband cavity-enhanced absorption spectroscopy has been developed using a supercontinuum broadband light source, which showcases its ability in simultaneous measurements of the concentration ...
Show more >A novel instrument based on broadband cavity-enhanced absorption spectroscopy has been developed using a supercontinuum broadband light source, which showcases its ability in simultaneous measurements of the concentration of NO2 and the extinction of particulate matter. Side-by-side intercomparison was carried out with the reference NOx analyzer for NO2 and OPC-N2 particle counter for particulate matter, which shows a good linear correlation with r2 > 0.90. The measurement limits (1σ) of the developed instrument were experimentally determined to be 230 pptv in 40 s for NO2 and 1.24 Mm−1 for the extinction of particulate matter in 15 s. This work provides a promising method in simultaneously monitoring atmospheric gaseous compounds and particulate matter, which would further advance our understanding on gas−particle heterogeneous interactions in the context of climate change and air quality.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

ANR Project :

Albédomètre multi-longueur d'onde pour la mesure des suies
Physiques et Chimie de l'Environnement Atmosphérique

Administrative institution(s) :

Université de Lille
CNRS

Collections :

• Laboratoire d'Optique Atmosphérique (LOA) - UMR 8518
• Physicochimie des Processus de Combustion et de l'Atmosphère (PC2A) - UMR 8522

Research team(s) :

PhysicoChimie de l'Atmosphère (PCA)

Submission date :

2023-03-16T07:37:25Z
2023-03-16T09:38:55Z