Articles | Volume 10, issue 4
https://doi.org/10.5194/amt-10-1373-2017
https://doi.org/10.5194/amt-10-1373-2017
Research article
 | 
11 Apr 2017
Research article |  | 11 Apr 2017

New insights into atmospherically relevant reaction systems using direct analysis in real-time mass spectrometry (DART-MS)

Yue Zhao, Michelle C. Fairhurst, Lisa M. Wingen, Véronique Perraud, Michael J. Ezell, and Barbara J. Finlayson-Pitts

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AR by Barbara Finlayson-Pitts on behalf of the Authors (08 Mar 2017)  Author's response    Manuscript
ED: Publish as is (09 Mar 2017) by Hartmut Herrmann
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Short summary
Two model systems are studied: dicarboxylic acid particles with gaseous amines and α-cedrene ozonolysis particles. Measurements by direct analysis in real-time mass spectrometry and high-resolution time-of-flight aerosol mass spectrometry show that the reaction of the amines with the acid particles is restricted to the surface layer, with an odd–even alternating pattern. Furthermore, in the α-cedrene study, DART-MS is able to differentiate isomers based on their volatility.