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
Department of Earth and Environmental Science, Centre for Atmospheric Science, School of Natural Sciences, The University of Manchester, Manchester, M13 9PL, UK
Stephen J. Andrews
Wolfson Atmospheric Chemistry Laboratories, Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
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.
This study details a new sampling method for the optical detection of hydrogen chloride (HCl)....