000020015 001__ 20015 000020015 005__ 20240709081714.0 000020015 0247_ $$2DOI$$a10.1016/j.atmosenv.2011.04.023 000020015 0247_ $$2WOS$$aWOS:000292436300008 000020015 037__ $$aPreJuSER-20015 000020015 041__ $$aeng 000020015 082__ $$a550 000020015 084__ $$2WoS$$aEnvironmental Sciences 000020015 084__ $$2WoS$$aMeteorology & Atmospheric Sciences 000020015 1001_ $$0P:(DE-HGF)0$$aLaitinen, T.$$b0 000020015 245__ $$aCharacterization of organic compounds in 10- to 50-nm aerosol particles in boreal forest with laser desorption -ionization aerosol mass spectrometer and comparison with other techniques 000020015 260__ $$aAmsterdam [u.a.]$$bElsevier Science$$c2011 000020015 300__ $$a3711 - 3719 000020015 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article 000020015 3367_ $$2DataCite$$aOutput Types/Journal article 000020015 3367_ $$00$$2EndNote$$aJournal Article 000020015 3367_ $$2BibTeX$$aARTICLE 000020015 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000020015 3367_ $$2DRIVER$$aarticle 000020015 440_0 $$0697$$aAtmospheric Environment$$v45$$x1352-2310$$y22 000020015 500__ $$3POF3_Assignment on 2016-02-29 000020015 500__ $$aThe financial support of the Academy of Finland Centre of Excellence program (project no 1118615) is gratefully acknowledged. The authors thank Pekka Tarkiainen, Janne Levula, Toivo Pohja and all those at the SMEAR II station who helped with the measurements. Mikko Aijala is thanked for the Aerodyne AMS data handling and Sampsa Laine from Data Rangers for assistance in data analysis. 000020015 520__ $$aThe aim of this study was to characterize the organic composition of ambient ultrafine particles (< 50 nm) in a boreal forest environment and compare the analytical results obtained by different techniques with use a data analysis software. In the chromatographic techniques, particles were collected on a filter and analyzed off-line after sample preparation, whereas in the aerosol MS, particle analysis was performed directly from the particle source.Many compounds and chemical groups were identified with a laser aerosol mass spectrometer (laser AMS) and selected organic compounds, including acids, polyols, amines and aldehydes, from 50 nm filter samples were quantified. Interesting components found with the laser AMS included oxygenated and aliphatic hydrocarbons, aromatic compounds, amines, and black carbon. The amines found on laser AMS may be related to new particle formation events at particle sizes 10-25 nm. Correlations between the results obtained with different instruments were clarified, and the best correlations were found between laser AMS and 50-nm size filter samples. There were no correlations between the laser AMS data and meteorological data or on-line measured gas phase compounds. The black carbon found on laser AMS had moderate correlation for levoglucosan found on all-sized filter samples. Finally, the correlation analysis revealed that the information obtained from sub-50-nm size range particles and results for particles several times higher could not be directly compared. (C) 2011 Elsevier Ltd. All rights reserved. 000020015 536__ $$0G:(DE-Juel1)FUEK491$$2G:(DE-HGF)$$aAtmosphäre und Klima$$cP23$$x0 000020015 588__ $$aDataset connected to Web of Science 000020015 65320 $$2Author$$aAerosols 000020015 65320 $$2Author$$aNanoparticles 000020015 65320 $$2Author$$aBoreal forest 000020015 65320 $$2Author$$aOrganic composition 000020015 65320 $$2Author$$aAerosol MS 000020015 650_7 $$2WoSType$$aJ 000020015 7001_ $$0P:(DE-Juel1)144056$$aEhn, M.$$b1$$uFZJ 000020015 7001_ $$0P:(DE-HGF)0$$aJunninen, H.$$b2 000020015 7001_ $$0P:(DE-HGF)0$$aRuiz-Jimenez, J.$$b3 000020015 7001_ $$0P:(DE-HGF)0$$aParshintsev, J.$$b4 000020015 7001_ $$0P:(DE-HGF)0$$aHartonen, K.$$b5 000020015 7001_ $$0P:(DE-HGF)0$$aRiekkola, M.-L.$$b6 000020015 7001_ $$0P:(DE-HGF)0$$aWorsnop, D.R.$$b7 000020015 7001_ $$0P:(DE-HGF)0$$aKulmala, M.$$b8 000020015 773__ $$0PERI:(DE-600)1499889-0$$a10.1016/j.atmosenv.2011.04.023$$gVol. 45, p. 3711 - 3719$$p3711 - 3719$$q45<3711 - 3719$$tAtmospheric environment$$v45$$x1352-2310$$y2011 000020015 8567_ $$uhttp://dx.doi.org/10.1016/j.atmosenv.2011.04.023 000020015 909CO $$ooai:juser.fz-juelich.de:20015$$pVDB:Earth_Environment$$pVDB 000020015 915__ $$0StatID:(DE-HGF)0010$$aJCR/ISI refereed 000020015 9141_ $$y2011 000020015 9131_ $$0G:(DE-Juel1)FUEK491$$aDE-HGF$$bErde und Umwelt$$kP23$$lAtmosphäre und Klima$$vAtmosphäre und Klima$$x0$$zvormals P22 000020015 9132_ $$0G:(DE-HGF)POF3-249H$$1G:(DE-HGF)POF3-240$$2G:(DE-HGF)POF3-200$$aDE-HGF$$bMarine, Küsten- und Polare Systeme$$lAtmosphäre und Klima$$vAddenda$$x0 000020015 9201_ $$0I:(DE-Juel1)IEK-8-20101013$$gIEK$$kIEK-8$$lTroposphäre$$x0 000020015 970__ $$aVDB:(DE-Juel1)135084 000020015 980__ $$aVDB 000020015 980__ $$aConvertedRecord 000020015 980__ $$ajournal 000020015 980__ $$aI:(DE-Juel1)IEK-8-20101013 000020015 980__ $$aUNRESTRICTED 000020015 981__ $$aI:(DE-Juel1)ICE-3-20101013