Effect of dimethylamine on the gas phase sulfuric acid concentration measured by Chemical Ionization Mass Spectrometry
- Rondo, L.
- Ehrhart, S.
- Kürten, A.
- Adamov, A.
- Bianchi, F.
- Breitenlechner, M.
- Duplissy, J.
- Franchin, A.
- Dommen, J.
- Donahue, N.M.
- Dunne, E.M.
- Flagan, R.C.
- Hakala, J.
- Hansel, A.
- Keskinen, H.
- Kim, J.
- Jokinen, T.
- Lehtipalo, K.
- Leiminger, M.
- Praplan, A.
- Riccobono, F.
- Rissanen, M.P.
- Sarnela, N.
- Schobesberger, S.
- Simon, M.
- Sipilä, M.
- Smith, J.N.
- Tomé, A.
- Tröstl, J.
- Tsagkogeorgas, G.
- Vaattovaara, P.
- Winkler, P.M.
- Williamson, C.
- Wimmer, D.
- Baltensperger, U.
- Kirkby, J.
- Kulmala, M.
- Petäjä, T.
- Worsnop, D.R.
- Curtius, J.
DOIAbstract
Sulfuric acid is widely recognized as a very important substance driving atmospheric aerosolnucleation. Based on quantum chemical calculations it has been suggested that the quantitative detectionof gas phase sulfuric acid (H2SO4) by use of Chemical Ionization Mass Spectrometry (CIMS) could be biased inthe presence of gas phase amines such as dimethylamine (DMA). An experiment (CLOUD7 campaign) was setup at the CLOUD (Cosmics Leaving OUtdoor Droplets) chamber to investigate the quantitative detection ofH2SO4in the presence of dimethylamine by CIMS at atmospherically relevant concentrations. For the first time inthe CLOUD experiment, the monomer sulfuric acid concentration was measured by a CIMS and by two CI-APi-TOF(Chemical Ionization-Atmos...
Add to ORKG