Abstract
A study of the gas phase mixing ratio of hydrochloric acid was made during the 1988 Polarstern expedition using tunable diode laser absorption spectroscopy (TDLAS). The measurements were made 22 m above sea level at 28° N, 30° W. The signal-to-noise ratio was unity for <50 pptv HCl, but because of wall effects in the sampling system, only an upper limit for the HCl mixing ratio of <250 pptv can be stated.
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Harris, G.W., Klemp, D. & Zenker, T. An upper limit on the HCl near-surface mixing ratio over the Atlantic measured using TDLAS. J Atmos Chem 15, 327–332 (1992). https://doi.org/10.1007/BF00115402
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DOI: https://doi.org/10.1007/BF00115402