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  Glyoxal measurement with a proton transfer reaction time of flight mass spectrometer (PTR-TOF-MS): characterization and calibration

Stönner, C., Derstroff, B., Klüpfel, T., Crowley, J. N., & Williams, J. (2017). Glyoxal measurement with a proton transfer reaction time of flight mass spectrometer (PTR-TOF-MS): characterization and calibration. Journal of Mass Spectrometry, 52(1), 30-35. doi:10.1002/jms.3893.

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 Creators:
Stönner, C.1, Author              
Derstroff, B.1, Author              
Klüpfel, T.1, Author              
Crowley, J. N.1, Author              
Williams, J.1, Author              
Affiliations:
1Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society, ou_1826285              

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 Abstract: We examine the potential for PTR-TOF-MS systems to quantitatively measure glyoxal in ambient air by characterizing the response of the instrument to a dilute glyoxal sample, calibrating the system as a function of humidity. The concentration of glyoxal in a sample air-stream was measured with an UV absorption spectrometer in parallel to a PTR-TOF-MS. This calibration demonstrated that the PTR-TOF-MS has a relatively low sensitivity to glyoxal particularly at high humidity. Extensive fragmentation of glyoxal to formaldehyde was observed. This behaviour not only desensitizes PTR-MS system to glyoxal; it may also pose a problem to the quantification of formaldehyde.

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Language(s): eng - English
 Dates: 2017
 Publication Status: Published in print
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 Table of Contents: -
 Rev. Type: -
 Identifiers: ISI: 000396409500005
DOI: 10.1002/jms.3893
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Title: Journal of Mass Spectrometry
Source Genre: Journal
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Publ. Info: Chichester, England : Wiley
Pages: - Volume / Issue: 52 (1) Sequence Number: - Start / End Page: 30 - 35 Identifier: ISSN: 1076-5174
CoNE: https://pure.mpg.de/cone/journals/resource/954926950786