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

Eger, P. G., Helleis, F., Schuster, G., Phillips, G. J., Lelieveld, J., & Crowley, J. N. (2018). Chemical ionisation quadrupole mass spectrometer with an electrical discharge ion source for atmospheric trace gas measurement. Atmospheric Measurement Techniques Discussions, 11.

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 Creators:
Eger, Philipp G.1, Author              
Helleis, Frank2, Author              
Schuster, Gerhard1, Author              
Phillips, Gavin J.1, Author              
Lelieveld, Jos1, Author              
Crowley, John N.1, Author              
Affiliations:
1Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society, ou_1826285              
2Max Planck Institute for Chemistry, Max Planck Society, ou_1826284              

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 Abstract: We present a Chemical Ionisation Quadrupole Mass Spectrometer (CI-QMS) with radio-frequency (RF) discharge ion source through N2/CH3I as source of primary ions. In addition to the expected detection of PAN, peracetic acid and ClNO2 through well-established ion-molecule-reactions with I- and its water cluster, the instrument is also sensitive to SO2, HCl and acetic acid (CH3C(O)OH) through additional ion chemistry unique for our ion source. We present ionisation schemes for detection of SO2, HCl and acetic acid along with illustrative data sets from three different field campaigns underlining the potential of the CI-QMS with an RF discharge ion source as an alternative to 210Po. The additional sensitivity to SO2 and HCl makes the CI-QMS suitable for investigating the role of sulphur and chlorine chemistry in the polluted marine and coastal boundary layer.

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Language(s): eng - English
 Dates: 2018
 Publication Status: Published in print
 Pages: 35
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.5194/amt-2018-428
 Degree: -

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Title: Atmospheric Measurement Techniques Discussions
  Other : Atmos. Meas. Tech. Discuss.
  Abbreviation : AMTD
Source Genre: Journal
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Publ. Info: Katlenburg-Lindau : Copernicus
Pages: 35 Volume / Issue: 11 Sequence Number: - Start / End Page: - Identifier: ISSN: 1867-8610
CoNE: https://pure.mpg.de/cone/journals/resource/1867-8610