Measurement of neutral sulfuric acid-dimethylamine clusters using CI-APi-TOF-MS
Abstract
Recent studies suggest that dimethylamine could be a key ternary species in the formation and early growth of atmospheric aerosol particles. We report on nucleation studies for the ternary system of sulfuric acid, water and dimethylamine which have been performed at the CERN CLOUD chamber. These studies were conducted at atmospherically relevant concentrations of sulfuric acid and dimethylamine at 278 K and 38% RH. Two newly developed Chemical Ionization-Atmospheric Pressure interface-Time of Flight-Mass Spectrometers (CIAPi-TOF-MS) were used to measure the time-resolved concentration of neutral clusters containing sulfuric acid and dimethylamine. Results from other instrumental techniques are included in the analysis as well to obtain a deeper insight into the occurring mechanisms. It is the first time that the neutral nucleation pathway has been studied in such detail from the early generation of sulfuric acid monomers up to particle sizes reaching several nanometers.
Additional Information
© 2013 AIP Publishing LLC. Published online 24 May 2013. We would like to thank CERN for supporting CLOUD with important technical and financial resources, and for providing a particle beam from the CERN Proton Synchrotron. This research has received funding from the EC Seventh Framework Programme (Marie Curie Initial Training Network "CLOUD-ITN" no. 215072, MCITN "CLOUD-TRAIN" no. 316662, and ERC-Advanced "ATMNUCLE'' grant no. 227463), the German Federal Ministry of Education and Research (project nos. 01LK0902A and 01LK1222A), the Swiss National Science Foundation (project nos. 200020_135307 and 206620_130527), the Academy of Finland (Center of Excellence project no. 1118615), the Academy of Finland (135054, 133872, 251427, 139656, 139995, 137749, 141217, 141451), the Finnish Funding Agency for Technology and Innovation, the Nessling Foundation, the Austrian Science Fund (FWF; project no. P19546 and L593), the Portuguese Foundation for Science and Technology (project no. CERN/FP/116387/2010), the Swedish Research Council, Vetenskapsrådet (grant 2011-5120), the Presidium of the Russian Academy of Sciences and Russian Foundation for Basic Research (grants 08-02-91006-CERN and 12-02-91522-CERN), and the U.S. National Science Foundation (grants AGS1136479 and CHE1012293).Attached Files
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Additional details
- Eprint ID
- 66380
- Resolver ID
- CaltechAUTHORS:20160421-153655216
- 215072
- Marie Curie Fellowship
- 316662
- Marie Curie Fellowship
- 227463
- European Research Council (ERC)
- 01LK0902A
- Bundesministerium für Bildung und Forschung (BMBF)
- 01LK1222A
- Bundesministerium für Bildung und Forschung (BMBF)
- 200020_135307
- Swiss National Science Foundation (SNSF)
- 206620_130527
- Swiss National Science Foundation (SNSF)
- 1118615
- Academy of Finland
- 135054
- Academy of Finland
- 133872
- Academy of Finland
- 251427
- Academy of Finland
- 139656
- Academy of Finland
- 139995
- Academy of Finland
- 137749
- Academy of Finland
- 141217
- Academy of Finland
- 141451
- Academy of Finland
- Finnish Funding Agency for Technology and Innovation
- Nessling Foundation
- P19546
- FWF Der Wissenschaftsfonds
- L593
- FWF Der Wissenschaftsfonds
- CERN/FP/116387/2010
- Fundação para a Ciência e a Tecnologia (FCT)
- Swedish Research Council
- 2011-5120
- Vetenskapsrådet
- Russian Academy of Sciences
- 08-02-91006-CERN
- Russian Foundation for Basic Research
- 12-02-91522-CERN
- Russian Foundation for Basic Research
- AGS1136479
- NSF
- CHE1012293
- NSF
- Created
-
2016-04-22Created from EPrint's datestamp field
- Updated
-
2021-11-10Created from EPrint's last_modified field
- Series Name
- AIP Conference Proceedings
- Series Volume or Issue Number
- 1527