Evolution of alpha-pinene oxidation products in the presence of varying oxidizers:CI-APi-TOF point of view
- Rissanen, Matti P.
- Jokinen, Tuija
- Schobesberger, Siegfried
- Praplan, Arnaud P.
- Sipilä, Mikko
- Sarnela, Nina
- Junninen, Heikki
- Duplissy, Jonathan
- Kangasluoma, Juha
- Hakala, Jani
- Wimmer, Daniela
- Adamov, Alexey
- Lehtipalo, Katrianne
- Nieminen, Tuomo
- Kulmala, Markku
- Worsnop, Douglas R.
Publication date
January 2013
DOIAbstract
Alpha-pinene oxidation was studied in the CERN CLOUD chamber under near atmospheric conditions using varying levels of different oxidizers (i.e., O 3, HOx and NOx with differing gas mixture compositions) in the presence and absence of UV-radiation, SO2 and additional organic traces; ammonia (NH3) and dimethylamine (DMA). The oxidation products and their evolution due to aging in the chamber were studied using a novel CI-APi-TOF technique, with the nitrate ion (NO3 -) based chemical ionization (CI) scheme. We aimed to the results that would indicate how different oxidizing pathways lead to different product distributions in the product clusters detected.</p
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