(L773:1873 2844 OR L773:1352 2310)
Search: (L773:1873 2844 OR L773:1352 2310) > (2000-2004) > A study of the gas-...
- 1 of 41
- Previous record
- Next record
- To hitlist
A study of the gas-phase ozonolysis of terpenes: the impact of radicals formed during the reaction
-
- Fick, Jerker (author)
- Umeå universitet,Kemiska institutionen
-
- Pommer, Linda (author)
- Umeå universitet,Energiteknik och termisk processkemi
-
- Andersson, Barbro (author)
- Umeå universitet,Kemiska institutionen
- show more...
- show less...
- (creator_code:org_t)
- 2002
- 2002
- English.
- In: Atmospheric Environment. - 1352-2310 .- 1873-2844. ; 36:20, s. 3299-3308
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- The gas-phase ozonolysis of α-pinene, Δ3-carene and limonene was investigated at ppb levels and the impact of the ozone, relative air humidity (RH), and time was studied using experimental design. The amounts of terpene reacted varied in the different settings and were as high as 8.1% for α-pinene, 10.9% forΔ3-carene and 23.4% for limonene. The designs were able to describe almost all the variation in the experimental data and were also successful in predicting omitted values. The results described the effects of time and ozone and also showed that RH did not have a statistically significant effect on the ozonolysis. The results also showed that all three terpenes were affected by an additional oxidation of OH radicals and/or other reactive species. The results from the designs states that this additional oxidation was responsible for 40% of the total amount of α-pinene reacted, 33% of the total amount of Δ3-carene reacted and 41% of the total amount of limonene reacted at the settings 20 ppb terpene, 75 ppb ozone, 20% RH and a reaction time of 213 s. Additional experiments with 2-butanol as OH radical scavenger showed that the reaction with OH radicals was responsible for 37% of the total α-pinene reacted and 39% of the total Δ3-carene reacted at the same settings. The scavenger experiments also showed that there were no significant amounts of OH radicals formed during the ozonolysis of limonene. The results from the designs were also compared to a mathematical model in order to evaluate further the data.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
Keyword
- Monoterpenes
- OH radicals
- Relative humidity
- Criegee intermediate
- Experimental design
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- Atmospheric Environment (Search for host publication in LIBRIS)
To the university's database
- 1 of 41
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Fick, Jerker
- Pommer, Linda
- Andersson, Barbr ...
- Nilsson, Calle
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Earth and Relate ...
- and Meteorology and ...
- Articles in the publication
- Atmospheric Envi ...
- By the university
- Umeå University
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
