Articles | Volume 12, issue 5
https://doi.org/10.5194/amt-12-2851-2019
https://doi.org/10.5194/amt-12-2851-2019
Research article
 | 
20 May 2019
Research article |  | 20 May 2019

High-precision measurements of nitrous oxide and methane in air with cavity ring-down spectroscopy at 7.6 µm

Jing Tang, Bincheng Li, and Jing Wang

Download

Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Bincheng Li on behalf of the Authors (15 Feb 2019)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (03 Mar 2019) by Weidong Chen
RR by Hu Shui-Ming (17 Mar 2019)
ED: Publish subject to minor revisions (review by editor) (17 Mar 2019) by Weidong Chen
AR by Anna Wenzel on behalf of the Authors (20 Mar 2019)  Author's response
ED: Publish subject to minor revisions (review by editor) (02 Apr 2019) by Weidong Chen
AR by Lorena Grabowski on behalf of the Authors (11 Apr 2019)  Author's response
ED: Publish as is (19 Apr 2019) by Weidong Chen
Download
Short summary
A high-sensitivity CH4 and N2O sensor based on mid-IR (7.6 µm) cavity ring-down spectroscopy was developed. The effect of temperature fluctuation on measurement sensitivity was analyzed and corrected, and detection limits of 5 pptv for CH4 and 9 pptv for N2O were experimentally achieved. Separate and continuous measurements of CH4 and N2O concentrations of indoor and outdoor air at different locations showed the spatial and temporal concentration variations of CH4 and N2O in air.