%0 Journal Article %1 Dommen:2006p1482 %A Dommen, J %A Metzger, A %A Duplissy, J %A Kalberer, M %A Alfarra, M %A Gascho, A %A Weingartner, E %A Prevot, A %A Verheggen, B %A Baltensperger, U %D 2006 %J Geophysical Research Letters %K imported %N 13 %P -- %T Laboratory observation of oligomers in the aerosol from isoprene/NOx photooxidation %U http://links.isiglobalnet2.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=mekentosj&SrcApp=Papers&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000238952100007 %V 33 %X 1 Compounds assigned to be oxidation products of isoprene (2-methyl-1,3-butadiene) have recently been observed in ambient aerosols, suggesting that isoprene might play an important role in secondary organic aerosol (SOA) formation due to its large global source strength. SOA yields from photooxidation of isoprene and NOx in a chamber agree fairly well with previous data. Matrix assisted laser desorption/ionization mass spectrometry showed the formation of high molecular weight compounds over the course of 15-hour experiments. Concurrently, the volatility of the SOA decreased markedly as observed by a tandem differential mobility analyzer. The volume fraction remaining of SOA at 150 degrees C increased steadily from 5 to 25% during the same experiments. These observations are attributed to oligomerization reactions occurring in the aerosol phase. Under dry conditions a lower volatility was observed.

@article{Dommen:2006p1482, abstract = {[1] Compounds assigned to be oxidation products of isoprene (2-methyl-1,3-butadiene) have recently been observed in ambient aerosols, suggesting that isoprene might play an important role in secondary organic aerosol (SOA) formation due to its large global source strength. SOA yields from photooxidation of isoprene and NOx in a chamber agree fairly well with previous data. Matrix assisted laser desorption/ionization mass spectrometry showed the formation of high molecular weight compounds over the course of 15-hour experiments. Concurrently, the volatility of the SOA decreased markedly as observed by a tandem differential mobility analyzer. The volume fraction remaining of SOA at 150 degrees C increased steadily from 5 to 25% during the same experiments. These observations are attributed to oligomerization reactions occurring in the aerosol phase. Under dry conditions a lower volatility was observed.}, added-at = {2010-06-22T19:38:37.000+0200}, affiliation = {Dommen, J Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland Swiss Fed Inst Technol ETH, Dept Chem {\&} Appl Biosci, CH-8093 Zurich, Switzerland}, author = {Dommen, J and Metzger, A and Duplissy, J and Kalberer, M and Alfarra, M and Gascho, A and Weingartner, E and Prevot, A and Verheggen, B and Baltensperger, U}, biburl = {https://www.bibsonomy.org/bibtex/253c80aa459cce5f25fda78bcbe897b43/gsmith}, date-added = {2010-03-10 16:47:16 -0500}, date-modified = {2010-03-10 16:48:22 -0500}, interhash = {3c67940383e2117fff58f8910099a931}, intrahash = {53c80aa459cce5f25fda78bcbe897b43}, journal = {Geophysical Research Letters}, keywords = {imported}, label = {rec-number 1182}, local-url = {file://localhost/Users/geoffreysmith/Documents/Papers/Geophysical%20Research%20Letters/2006/Geophysical%20Research%20Letters,%2033,%20-%202006-1.pdf}, month = Jul, note = {062NP Times Cited:0 Cited References Count:23}, number = 13, pages = {--}, pmid = {000238952100007}, rating = {0}, timestamp = {2010-06-22T19:39:32.000+0200}, title = {Laboratory observation of oligomers in the aerosol from isoprene/NOx photooxidation}, uri = {papers://E88B624E-D406-46FF-9D95-BB9C1AAE3FDC/Paper/p1482}, url = {http://links.isiglobalnet2.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=mekentosj&SrcApp=Papers&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000238952100007}, volume = 33, year = 2006 }