Articles | Volume 15, issue 14
Atmos. Chem. Phys., 15, 8101–8114, 2015
https://doi.org/10.5194/acp-15-8101-2015

Special issue: Uintah Basin Winter Ozone Studies (ACP/AMT inter-journal SI)

Atmos. Chem. Phys., 15, 8101–8114, 2015
https://doi.org/10.5194/acp-15-8101-2015

Research article 23 Jul 2015

Research article | 23 Jul 2015

Peroxynitric acid (HO2NO2) measurements during the UBWOS 2013 and 2014 studies using iodide ion chemical ionization mass spectrometry

P. R. Veres et al.

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In this paper laboratory work is documented establishing iodide ion chemical ionization mass spectrometry (I- CIMS) as a sensitive method for the unambiguous detection of peroxynitric acid (HO2NO2; PNA). A dynamic calibration source for HO2NO2, HO2, and HONO was developed and calibrated using a novel total NOy detector (NOy CaRDS). The ambient observations of HO2NO2 using I- CIMS made during the 2013 and 2014 Uintah Basin Wintertime Ozone Study (UBWOS) are presented.
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