Articles | Volume 16, issue 5
Research article
16 Mar 2023
Research article |  | 16 Mar 2023

Using tunable infrared laser direct absorption spectroscopy for ambient hydrogen chloride detection: HCl-TILDAS

John W. Halfacre, Jordan Stewart, Scott C. Herndon, Joseph R. Roscioli, Christoph Dyroff, Tara I. Yacovitch, Michael Flynn, Stephen J. Andrews, Steven S. Brown, Patrick R. Veres, and Pete M. Edwards


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on amt-2022-309', Anonymous Referee #1, 09 Dec 2022
    • AC1: 'Reply on RC1', John Halfacre, 24 Jan 2023
  • RC2: 'Comment on amt-2022-309', Anonymous Referee #2, 16 Dec 2022
    • AC2: 'Reply on RC2', John Halfacre, 24 Jan 2023
  • RC3: 'Comment on amt-2022-309', Anonymous Referee #3, 20 Dec 2022
    • AC3: 'Reply on RC3', John Halfacre, 24 Jan 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by John Halfacre on behalf of the Authors (10 Feb 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (13 Feb 2023) by Mingjin Tang
AR by John Halfacre on behalf of the Authors (20 Feb 2023)
Short summary
This study details a new sampling method for the optical detection of hydrogen chloride (HCl). HCl is an important atmospheric reservoir for chlorine atoms, which can affect nitrogen oxide cycling and the lifetimes of volatile organic compounds and ozone. However, HCl has a high affinity for interacting with surfaces, thereby preventing fast, quantitative measurements. The sampling technique in this study minimizes these surface interactions and provides a high-quality measurement of HCl.