Articles | Volume 12, issue 3
Atmos. Meas. Tech., 12, 1935–1954, 2019
https://doi.org/10.5194/amt-12-1935-2019
Atmos. Meas. Tech., 12, 1935–1954, 2019
https://doi.org/10.5194/amt-12-1935-2019

Research article 26 Mar 2019

Research article | 26 Mar 2019

Chemical ionization quadrupole mass spectrometer with an electrical discharge ion source for atmospheric trace gas measurement

Philipp G. Eger et al.

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Latest update: 10 May 2021
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Short summary
We present a chemical ionization quadrupole mass spectrometer (CI-QMS) with a novel discharge ion source. In addition to the expected detection of PAN, peracetic acid and ClNO2, the instrument is also sensitive to SO2, HCl and acetic acid through ion chemistry unique for our ion source. We present ionization schemes along with illustrative datasets from field campaigns underlining the potential of the CI-QMS as an alternative to polonium, especially for application in the marine boundary layer.