Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 9, issue 11
Articles | Volume 9, issue 11
https://doi.org/10.5194/amt-9-5315-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/amt-9-5315-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 9, issue 11
Research article
 | 
07 Nov 2016
Research article |  | 07 Nov 2016

Sensitive detection of n-alkanes using a mixed ionization mode proton-transfer-reaction mass spectrometer

Omar Amador-Muñoz, Pawel K. Misztal, Robin Weber, David R. Worton, Haofei Zhang, Greg Drozd, and Allen H. Goldstein

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Short summary
Proton transfer reaction mass spectrometry (PTR-MS) was used to detect n-alkanes that generally have a lower proton affinity than water and therefore proton transfer (PT) by reaction with H3O+ is not an effective mechanism for their detection. In this study, we developed a method using a conventional PTR-MS to detect n-alkanes by optimizing ion source and drift tube conditions to vary the relative amounts of different primary ions (H3O+, O2+, NO+) in the reaction chamber (drift tube).
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