Evolution of alpha-pinene oxidation products in the presence of varying oxidizers: CI-APi-TOF point of view

Matti P. Rissanen, Tuija Jokinen, Siegfried Schobesberger, Arnaud P. Praplan, Mikko Sipilä, Nina Sarnela, Heikki Junninen, Jonathan Duplissy, Juha Kangasluoma, Jani Hakala, Daniela Wimmer, Alexey Adamov, Katrianne Lehtipalo, Tuomo Nieminen, Markku Kulmala, Douglas R. Worsnop

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

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.

Original languageEnglish
Title of host publicationNucleation and Atmospheric Aerosols - 19th International Conference
Pages371-373
Number of pages3
DOIs
Publication statusPublished - 2013
MoE publication typeA4 Article in a conference publication
Event19th International Conference on Nucleation and Atmospheric Aerosols, ICNAA 2013 - Fort Collins, United States
Duration: 23 Jun 201328 Jun 2013

Publication series

SeriesAIP Conference Proceedings
Volume1527
ISSN0094-243X

Conference

Conference19th International Conference on Nucleation and Atmospheric Aerosols, ICNAA 2013
Country/TerritoryUnited States
CityFort Collins
Period23/06/1328/06/13

Keywords

  • alfa-pinene oxidation
  • Chemical ionization mass spectrometer
  • oxidized organics

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