<?xml version="1.0" encoding="utf-8" standalone="no"?>
<!DOCTYPE article SYSTEM "http://www.atmos-chem-phys-discuss.net/inc/acpd/copernicus.dtd">
<article language="en">
	<journal>
		<journal_title>Atmospheric Chemistry and Physics Discussions</journal_title>
		<journal_url>www.atmos-chem-phys-discuss.net</journal_url>
		<issn>1680-7367</issn>
		<eissn>1680-7375</eissn>
		<volume_number>7</volume_number>
		<issue_number>5</issue_number>
		<publication_year>2007</publication_year>
	</journal>
	<doi>10.5194/acpd-7-14603-2007</doi>
	<article_url>http://www.atmos-chem-phys-discuss.net/7/14603/2007/</article_url>
	<abstract_html>http://www.atmos-chem-phys-discuss.net/7/14603/2007/acpd-7-14603-2007.html</abstract_html>
	<fulltext_pdf>http://www.atmos-chem-phys-discuss.net/7/14603/2007/acpd-7-14603-2007.pdf</fulltext_pdf>
	<start_page>14603</start_page>
	<end_page>14638</end_page>
	<publication_date>2007-10-15</publication_date>
	<article_title content_type="html">The ozonolysis of primary aliphatic amines in single and multicomponent fine particles</article_title>
	<authors>
		<author numeration="1" affiliations="1">
			<name>J. Zahardis</name>
		</author>
		<author numeration="2" affiliations="1">
			<name>S. Geddes</name>
		</author>
		<author numeration="3" affiliations="1">
			<name>G. A. Petrucci</name>
			<email>giuseppe.petrucci@uvm.edu</email>
		</author>
	</authors>
	<affiliations>
		<affiliation numeration="1" content_type="html">Department of Chemistry, University of Vermont, Burlington, VT 05405, USA</affiliation>
	</affiliations>
	<abstract content_type="html">The oxidative processing by ozone of the particulate amines octadecylamine
(ODA) and hexadecylamine (HDA) is reported. Ozonolysis of these amines
resulted in strong NO&lt;sub&gt;2&lt;/sub&gt;&lt;sup&gt;&amp;minus;&lt;/sup&gt; and NO&lt;sub&gt;3&lt;/sub&gt;&lt;sup&gt;&amp;minus;&lt;/sup&gt; ion signals that
increased with ozone exposure as monitored by photoelectron resonance
capture ionization aerosol mass spectrometry. These products suggest a
mechanism of progressive oxidation of the particulate amines to nitro
alkanes. Additionally, a strong ion signal at 125 &lt;i&gt;m/z&lt;/i&gt; is assigned to the ion
NO&lt;sub&gt;3&lt;/sub&gt;&lt;sup&gt;&amp;minus;&lt;/sup&gt;(HNO&lt;sub&gt;3&lt;/sub&gt;). For ozonized mixed particles containing ODA or
HDA + oleic acid (OL), with p&lt;sub&gt;O3&lt;/sub&gt;&amp;ge;3&amp;times;10&lt;sup/&gt;&amp;minus;7&lt;/sup&gt; atm, imine,
secondary amide, and tertiary amide products were measured. These products
most likely arise from reactions of amines with aldehydes (for imines) and
stabilized Criegee intermediates (SCI) or secondary ozonides (for amides)
from the fatty acid. The routes to amides via SCI and/or secondary ozonides
was shown to be more important than comparable amide forming reactions
between amines and organic acids, using azelaic acid as a test compound.
Finally, direct evidence is provided for the formation of a surface barrier
in the ODA + OL reaction system that resulted in the retention of OL at high
ozone exposures (up to 10&lt;sup&gt;&amp;minus;3&lt;/sup&gt; atm for 17 s). This effect was not observed
in HDA + OL or single component OL particles, suggesting that it may be a
species-specific surfactant effect from an in situ generated amide or imine.
Implications to tropospheric chemistry, including particle bound amines as
sources of oxidized gas phase nitrogen species (e.g. NO&lt;sub&gt;2&lt;/sub&gt;, NO&lt;sub&gt;3&lt;/sub&gt;),
formation of nitrogen enriched HULIS via ozonolysis of amines and source
apportionment are discussed.</abstract>
	<references>
		<reference numeration="1" content_type="text"> Angelino, S., Suess, D. T., and Prather, K. A.: Formation of aerosol particles from reactions of secondary and tertiary alkylamines: Characterization by aerosol time-of-flight mass spectrometry, Environ. Sci. Technol., 35(15), 3130&amp;ndash;3138, 2001. </reference>
		<reference numeration="2" content_type="text"> Bachman, G. B. and Strawn, K. G.: Ozone oxidation of primary amines to nitroalkanes, J. Org. Chem., 33(1), 313&amp;ndash;315, 1968. </reference>
		<reference numeration="3" content_type="text"> Bailey, P. S.: Ozonation in Organic Chemistry. New York, Academic Press, 1978. </reference>
		<reference numeration="4" content_type="text"> Bailey, P. S., Carter Jr., T. P., and Southwick, L. M.: Ozonation of amines. VI. Primary amines, J. Org. Chem., 37(19), 2997&amp;ndash;3004, 1972. </reference>
		<reference numeration="5" content_type="text"> Beddows, D. C. S., Donovan, R. J., Harrison, R. M., Heal, M. R., Kinnersley, R. P., King, M. D., Nicholson, D. H., and Thompson, K. C.: Correlations in the chemical composition of rural background atmospheric aerosol in the UK determined in real time using time-of-flight mass spectrometry, J. Environ. Monit., 6, 124&amp;ndash;133, 2004. </reference>
		<reference numeration="6" content_type="text"> Broekhuizen, K. E., Thornberry, T., Kumar, P. P., and Abbatt, J. P. D.: Formation of cloud condensation nuclei by oxidative processing: Unsaturated fatty acids, J. Geophys. Res., 109, D24206, doi:10.1029/2004JD005298, 2004. </reference>
		<reference numeration="7" content_type="text"> Decesari, S., Fuzzi, S., Facchini, M. C., Mircea, M., Emblico, L., Cavalli, F., Maenhaut, W., Chi, X., Schkolnik, G., Falkovich, A., Rudich, Y., Claeys, M., Pashynska, V., Vas, G., Kourtchev, I., Vermeylen, R., Hoffer, A., Andreae, M. O., Tagliavini, E., Moretti, F., and Artaxo, P.: Characterization of the organic composition of aerosols from Rondônia, Brazil, during the lba-smocc 2002 experiment and its representation through model compounds, Atmos. Chem. Phys., 6, 375&amp;ndash;402, 2006. </reference>
		<reference numeration="8" content_type="text"> Fehsenfeld, F. C., Howard, C. J., and Schmeltekopf, A. L.: Gas phase ion chemistry of HNO&lt;sub&gt;3&lt;/sub&gt;, J. Chem. Phys., 63, 2835&amp;ndash;2841, 1975. </reference>
		<reference numeration="9" content_type="text"> Filipy, J., Rumburg, B., Mount, G., Westberg, H., and Lamb, B.: Identification and quantification of volatile organic compounds from a dairy, Atmos. Environ., 40, 1480&amp;ndash;1494, 2006. </reference>
		<reference numeration="10" content_type="text"> Finlayson-Pitts, B. J. and Pitts Jr., J. N.: Chemistry of the upper and lower atmosphere, Academic Press, NYC, USA, 1999. </reference>
		<reference numeration="11" content_type="text"> Finlayson-Pitts, B. J., Wingen, L. M., Sumner, A. L., Syomin, D., and Ramazan, K. A.: The heterogeneous hydrolysis of NO&lt;sub&gt;2&lt;/sub&gt; in laboratory systems and in outdoor and indoor atmospheres: An integrated mechanism, Phys. Chem. Chem. Phys., 5, 223&amp;ndash;242, 2003. </reference>
		<reference numeration="12" content_type="text"> Galloway, J. N., Dentener, F. J., Capone, D. G., Boyer, E. W., Howarth, R. W., Seitzinger, S. P., Asner, G. P., Cleveland, C. C., Green, P. A., Holland, E. A., Karl, D. M., Michaels, A. F., Porter, J. H., Townsend, A. R., and Vörösmarty, C. J.: Nitrogen cycles: Past, present, and future, Biogeochemistry, 70, 153&amp;ndash;226, 2004. </reference>
		<reference numeration="13" content_type="text"> Gilman, J. P., Hsieh, T., and Meisels, G. G.: Competition between isomerization and fragmentation of gaseous ions. Ii. Nitromethane and methylnitrite ions, J. Chem. Phys., 78, 1174&amp;ndash;1179, 1983. </reference>
		<reference numeration="14" content_type="text"> Gross, D. S., Gälli, M. E., Kalberer, M., Prevot, A. S. H., Dommen, J., Alfarra, M. R., Duplissy, J., Gaeggeler, K., Gascho, A., Metzger, A., and Baltensperger, U.: Real-time measurement of oligomeric species in secondary organic aerosol time-of-flight mass spectrometer, Anal. Chem., 78, 2130&amp;ndash;2137, 2006. </reference>
		<reference numeration="15" content_type="text"> Hearn, J. D. and Smith, G. D.: Kinetics and product studies for the ozonolysis reactions of organic particles using aerosol CIMS, J. Phys. Chem. A, 108, 1019&amp;ndash;1029, 2004. </reference>
		<reference numeration="16" content_type="text"> Hearn, J. D., Lovett, A. J., and Smith, G. D.: Ozonolysis of oleic acid particles: Evidence for a surface reaction and secondary reactions involving criegee intermediates, Phys. Chem. Chem. Phys., 7, 501&amp;ndash;511, 2005. </reference>
		<reference numeration="17" content_type="text"> Hearn, J. D. and Smith, G. D.: Reactions and mass spectra of complex particles using aerosol cims, Int. J. Mass Spectrom., 258, 95&amp;ndash;103, 2006. </reference>
		<reference numeration="18" content_type="text"> Heitmann, H. and Arnold, F.: Composition measurements of tropospheric ions, Nature, 306, 747&amp;ndash;751, 1983. </reference>
		<reference numeration="19" content_type="text"> Hung, H.-M., Katrib, Y., and Martin, S. T.: Products and mechanisms of the reaction of oleic acid with ozone and nitrate radical, J. Phys. Chem. A, 109, 4517&amp;ndash;4530, 2005. </reference>
		<reference numeration="20" content_type="text"> Hung, H.-M. and Ariya, P.: Oxidation of oleic acid and oleic acid/sodium chloride(\textitaq) mixture droplets with ozone: Changes in hygroscopicity and role of secondary reactions, J. Phys. Chem. A, 111, 620&amp;ndash;632, 2007. </reference>
		<reference numeration="21" content_type="text"> Katrib, Y., Martin, S. T., Hung, H.-M., Rudich, Y., Zhang, H., Slowik, J. G., Davidovits, P., Jayne, J. T., and Worsnop, D. R.: Products and mechanisms of ozone reactions with oleic acid for aerosol particles having core-shell morphologies, J. Phys. Chem. A, 108, 6686&amp;ndash;6695, 2004. </reference>
		<reference numeration="22" content_type="text"> Katrib, Y., Biskos, G., Buseck, P. R., Davidovits, P., Jayne, J. T., Mochida, M., Wise, M. E., Worsnop, D. R., and Martin, S. T.: Ozonolysis of mixed oleic-acid/stearic acid particles: Reaction kinetics and chemical morphology, J. Phys. Chem. A, 109, 10 910&amp;ndash;10 919, 2005. </reference>
		<reference numeration="23" content_type="text"> Kawamura, K., Ishimura, Y., and Yamazaki, K.: Four years&apos; observations of terrestrial lipid class compounds in marine aerosols from the western north pacific, Global Biogeochem. Cycles, 17, 1003, doi:10.1029/2001GB001810, 2003. </reference>
		<reference numeration="24" content_type="text"> Keinan, E. and Mazur, Y.: Dry ozonation of amines. Conversion of primary amines to nitro compounds, J. Org. Chem., 42, 844&amp;ndash;847, 1977. </reference>
		<reference numeration="25" content_type="text"> King, M. D., Thompson, K. C., and Ward, A. D.: Laser tweezers raman study of optically trapped aerosol droplets of seawater and oleic acid reacting with ozone: Implications for cloud-droplet properties, J. Am. Chem. Soc., 126, 16 710&amp;ndash;16 711, 2004. </reference>
		<reference numeration="26" content_type="text"> LaFranchi, B. W. and Petrucci, G. A.: Photoelectron resonance capture ionization (PERCI): A novel technique for the soft-ionization of organic compounds, J. Am. Soc. Mass Spectrom., 15, 424&amp;ndash;430, 2004. </reference>
		<reference numeration="27" content_type="text"> LaFranchi, B. W., Zahardis, J., and Petrucci, G. A.: Photoelectron resonance capture ionization mass spectrometry: A soft ionization source for mass spectrometry of particle-phase organic compounds, Rapid Commun. Mass Spectrom., 18, 2517&amp;ndash;2521, 2004. </reference>
		<reference numeration="28" content_type="text"> LaFranchi, B. W. and Petrucci, G. A.: A comprehensive characterization of photoelectron resonance capture ionization aerosol mass spectrometry for the quantitative and qualitative analysis of organic particulate matter, Int. J. Mass Spectrom., 258, 120&amp;ndash;133, 2006. </reference>
		<reference numeration="29" content_type="text"> Likens, G. E. and Galloway, J. N.: The composition and deposition of organic carbon precipitation, Tellus, 35B, 16&amp;ndash;24, 1983. </reference>
		<reference numeration="30" content_type="text"> Lohmann, U. and Feichter, J.: Global indirect aerosol effects: A review, Atmos. Chem. Phys. , 5, 715&amp;ndash;737, 2005. </reference>
		<reference numeration="31" content_type="text"> Mace, K. A., Artaxo, P., and Duce, R. A.: Water-soluble organic nitrogen in amazon basin aerosols during the dry (biomass burning) and wet seasons, J. Geophys. Res., 108, 4512, doi:10.1029/2003JD003557 2003. </reference>
		<reference numeration="32" content_type="text"> Mäkelä, J. M., Yli-Koivisto, S., Hiltunen, V., Seidl, W., Swietlicki, E., Teinilä, K., Sillanpää, M., Koponen, I. K., Paatero, J., Rosman, K., and Hämeri, K.: Chemical composition of aerosol during particle formation events in boreal forest, Tellus, 53B, 380&amp;ndash;393, 2001. </reference>
		<reference numeration="33" content_type="text"> Martin, S.: Interactive comment on &quot;The oleic acid-ozone heterogeneous reaction system: Products, kinetics, secondary chemistry, and atmospheric implications of a model system &amp;ndash; a review&quot;, edited by: Zahardis, J. and Petrucci, G. A., Atmos. Chem. Phys. Discuss., 6, S4976&amp;ndash;S4978, 2006a. </reference>
		<reference numeration="34" content_type="text"> Martin, S.: Interactive comment on &quot;The oleic acid-ozone heterogeneous reaction system: Products, kinetics, secondary chemistry, and atmospheric implications of a model system &amp;ndash; a review&quot;, edited by: Zahardis, J. and Petrucci, G. A., Atmos. Chem. Phys. Discuss., 6, S4979&amp;ndash;S4980, 2006b. </reference>
		<reference numeration="35" content_type="text"> McGregor, K. G. and Anastasio, C.: Chemistry of fog waters in California&apos;s Central Valley: 2. Photochemical transformations of amino acids and alkyl amines, Atmos. Environ., 35, 1091&amp;ndash;1104, 2001. </reference>
		<reference numeration="36" content_type="text"> Milne, P. J. and Zika, R. G.: Amino acid nitrogen in atmospheric aerosols: Occurrence, sources and photochemical modifications, J. Atmos. Chem, 16, 361&amp;ndash;398, 1993. </reference>
		<reference numeration="37" content_type="text"> Mochida, M., Kitamori, Y., Kawamura, K., Nojiri, Y., and Suzuki, K.: Fatty acids in the marine atmosphere: Factors governing their concentrations and evaluation of organic films on sea-salt particles, J. Geophys. Res., 107, 4325, doi:10.1029/2001JD001278, 2002. </reference>
		<reference numeration="38" content_type="text"> Mochida, M., Katrib, Y., Jayne, J. T., Worsnop, D. R., and Martin, S. T.: The relative importance of competing pathways for the formation of high-molecular-weight peroxides in the ozonolysis of organic aerosol particles, Atmos. Chem. Phys., 6, 4851&amp;ndash;4866, 2006. </reference>
		<reference numeration="39" content_type="text"> Modelli, A. and Venuti, M.: Empty level structure and dissociative electron attachment in gas-phase nitro derivatives, Int. J. Mass Spectrom., 205, 7&amp;ndash;16, 2001. </reference>
		<reference numeration="40" content_type="text"> Moise, T. and Rudich, Y.: Reactive uptake of ozone by aerosol-associated unsaturated fatty acids: Kinetics, mechanism, and products, J. Phys. Chem. A, 106, 6469&amp;ndash;6476, 2002. </reference>
		<reference numeration="41" content_type="text"> Murphy, S. M., Sorooshian, A., Kroll, J. H., Ng, N. L., Chhabra, P., Tong, C., Surratt, J. D., Knipping, E., Flagan, R. C., and Seinfeld, J. H.: Secondary aerosol formation from atmospheric reactions of aliphatic amines, Atmos. Chem. Phys., 7, 2313&amp;ndash;2337, 2007. </reference>
		<reference numeration="42" content_type="text"> Nash, D. G., Tolocka, M. P., and Baer, T.: The uptake of O&lt;sub&gt;3&lt;/sub&gt; by myristic acid &amp;ndash; oleic acid mixed particles: Evidence for solid surface layers, Phys. Chem. Chem. Phys., 8, 4468&amp;ndash;4475, 2006. </reference>
		<reference numeration="43" content_type="text"> Natonal Research Council: Rethinking the ozone problem in urban and regional air pollution, National Academy Press, Washington, D. C., 1991. </reference>
		<reference numeration="44" content_type="text"> Nazin, G. M. and Manelis, G. B.: Thermal decomposition of aliphatic nitro-compounds, Russ. Chem. Rev., 63, 313&amp;ndash;322, 1994. </reference>
		<reference numeration="45" content_type="text"> Neff, J. C., Holland, E. A., Dentener, F. J., McDowell, W. H., and Russell, K. M.: The origin, composition and rates of organic nitrogen deposition: A missing piece of the nitrogen cycle?, Biogeochemistry, 57/58, 99&amp;ndash;136, 2002. </reference>
		<reference numeration="46" content_type="text"> Ozensoy, E., Peden, C. H. F., and Szanyi, J.: NO&lt;sub&gt;2&lt;/sub&gt; adsorption on ultrathin \textit$\theta $-AL&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt; films: Formation of nitrite and nitrate species, J. Phys. Chem. B, 109, 15 977&amp;ndash;15 984, 2005. </reference>
		<reference numeration="47" content_type="text"> Perkins, M. D. and Eisele, F. L.: First mass spectrometric measurements of atmospheric ions at ground level, J. Geophys. Res., 89, 9649&amp;ndash;9657, 1984. </reference>
		<reference numeration="48" content_type="text"> Petrucci, G. A., Farnswoth, P. B., Cavalli, P., and Omenetto, N.: A differentially pumped particle inlet for sampling of atmospheric aerosols into a time-of-flight mass spectrometer: Optical characterization of the particle beam, Aerosol Sci. Technol., 33, 105&amp;ndash;121, 2000. </reference>
		<reference numeration="49" content_type="text"> Pitts Jr, J. N., Sanhueza, E., Atkinson, R., Carter, W. P. L., Winer, A. M., Harris, G. W., and Plum, C. N.: An investigation of the dark formation of nitrous acid in environmental chambers, Int. J. Chem. Kinet., 16, 919&amp;ndash;939, 1984. </reference>
		<reference numeration="50" content_type="text"> Rabaud, N. E., Ebeler, S. E., Ashbaugh, L. L., and Flocchini, R. G.: Characterization and quantification of odorous and non-odorous volatile organic compounds near a commericial dairy in California, Atmos. Environ., 37, 933&amp;ndash;940, 2003. </reference>
		<reference numeration="51" content_type="text"> Ramazan, K. A., Wingen, L. M., Miller, Y., Chaban, G. M., Gerber, R. B., Xantheas, S. S., and Finlayson-Pitts, B. J.: New experimental and theoretical approach to the heterogeneous hydrolysis of NO&lt;sub&gt;2&lt;/sub&gt;: Key role of molecular nitric acid and its complexes, J. Phys. Chem. A, 110, 6886&amp;ndash;6897, 2006. </reference>
		<reference numeration="52" content_type="text"> Reynolds, J. C., Last, D. J., McGillen, M., Nijs, A., Horn, A. B., Percival, C., Carpenter, L. J., and Lewis, A. C.: Structural analysis of oligomeric molecules formed from the reaction products of oleic acid ozonolysis, Environ. Sci. Technol., 40, 6674&amp;ndash;6681, 2006. </reference>
		<reference numeration="53" content_type="text"> Robinson, A. L., Subramanian, R., Donahue, N. M., Bernardo-Bricker, A., and Rogge, W. F.: Source apportionment of molecular markers and organic aerosol. 3. Food cooking emissions, Environ. Sci. Technol., 40, 7820&amp;ndash;7827, 2006. </reference>
		<reference numeration="54" content_type="text"> Rogge, W. F., Hildemann, L. M., Mazurek, M. A., Cass, G. R., and Simoneit, B. R. T.: Sources of fine organic aerosol. 1. Charbroilers and meat cooking operations, Environ. Sci. Technol., 25, 1112&amp;ndash;1125, 1991. </reference>
		<reference numeration="55" content_type="text"> Satchell, D. P. N.: An outline of acylation, Q. Rev. Chem. Soc., 17, 160&amp;ndash;203, 1963. </reference>
		<reference numeration="56" content_type="text"> Schade, G. W. and Crutzen, P. J.: Emission of aliphatic amines from animal husbandry and their reactions: Potential source of N&lt;sub&gt;2&lt;/sub&gt;O and HCN, J. Atmos. Chem, 22, 319&amp;ndash;346, 1995. </reference>
		<reference numeration="57" content_type="text"> Schauer, J. J., Kleeman, M. J., Cass, G. R., and Simoneit, B. R.: Measurement of emissions from air pollution sources. 1. C$_1$ through C$_29$ organic compounds from meat charbroiling, Environ. Sci. Technol., 33, 1566&amp;ndash;1577, 1999. </reference>
		<reference numeration="58" content_type="text"> Schauer, J. J., Kleeman, M. J., Cass, G. R., and Simoneit, B. R. T.: Measurement of emissions from air pollution sources. 4. C$_1$-C$_27$ organic compounds from cooking with seed oils, Environ. Sci. Technol., 36, 567&amp;ndash;575, 2002. </reference>
		<reference numeration="59" content_type="text"> Sekimoto, K. and Takayama, M.: Influence of needle voltage on the formation of negative core ions using atmospheric pressure corona discharge in air, Int. J. Mass Spectrom., 261, 38&amp;ndash;44, 2007. </reference>
		<reference numeration="60" content_type="text"> Shilling, J. E., King, S. M., Mochida, M., Worsnop, D. R., and Martin, S. T.: Mass spectral evidence that small changes in composition caused by oxidative aging processes alter aerosol ccn properties, J. Phys. Chem. A, 111, 3358&amp;ndash;3368, 2007. </reference>
		<reference numeration="61" content_type="text"> Simoneit, B. R. T., Rushdi, A. I., bin Abas, M. R., and Didyk, B. M.: Alkyl amides and nitriles as novel tracers for biomass burning, Environ. Sci. Technol., 37, 16&amp;ndash;21, 2003. </reference>
		<reference numeration="62" content_type="text"> Smith, G. D., Woods III, E., DeForest, C. L., Baer, T., and Miller, R. E.: Reactive uptake of ozone by oleic acid aerosol particles: Application of single-particle mass spectrometry to heterogeneous reaction kinetics, J. Phys. Chem. A, 106, 8085&amp;ndash;8095, 2002. </reference>
		<reference numeration="63" content_type="text"> Tan, P. V., Evans, G. J., Tsai, J., Owega, S., Fila, M. S., Malpica, O., and Brook, J. R.: On-line analysis of urban particulate matter focusing on elevated wintertime aerosol concentrations, Environ. Sci. Technol., 36, 3512&amp;ndash;3518, 2002. </reference>
		<reference numeration="64" content_type="text"> Tervahattu, H. and Juhanoja, J.: Identification of an organic coating on marine aerosol particles by TOF-MS, J. Geophys. Res., 107(D16), doi:10.1029/2001JD001403, 2002. </reference>
		<reference numeration="65" content_type="text"> Tervahattu, T., Juhanoja, J., Vaida, V., Tuck, A. F., Niemi, J. V., Kupiainen, K., Kulmala, M., and Vehkamäki, H.: Fatty acids on continental sulfate aerosol particles, J. Geophys. Res., 110, D06207, doi:10.1029/2004JD005400, 2005. </reference>
		<reference numeration="66" content_type="text"> Tuazon, E. C., Atkinson, R., Aschmann, S. M., and Arey, J.: Kinetics and products of the gas-phase reactions of O&lt;sub&gt;3&lt;/sub&gt; with amines and related compounds, Res. Chem. Intermed., 20, 303&amp;ndash;320, 1994. </reference>
		<reference numeration="67" content_type="text"> Wang, H., Kawamura, K., and Shooter, D.: Wintertime organic aerosols in Christchurch and Auckland, New Zealand: Contributions of residential wood and coal burning and petroleum utilization, Environ. Sci. Technol., 40, 5257&amp;ndash;5262, 2006. </reference>
		<reference numeration="68" content_type="text"> Zahardis, J., LaFranchi, B. W., and Petrucci, G. A.: Photoelectron resonance capture ionization-aerosol mass spectrometry of the ozonolysis products of oleic acid particles: Direct measure of higher molecular weight oxygenates, J. Geophys. Res., 110, D08307, doi:10.1029/2004JD005336, 2005. </reference>
		<reference numeration="69" content_type="text"> Zahardis, J., LaFranchi, B. W., and Petrucci, G. A.: Direct observation of polymerization in the oleic acid &amp;ndash; ozone heterogeneous reaction system by photoelectron resonance capture ionization aerosol mass spectrometry, Atmos. Environ., 40, 1661&amp;ndash;1670, 2006a. </reference>
		<reference numeration="70" content_type="text"> Zahardis, J., LaFranchi, B. W., and Petrucci, G. A.: The heterogeneous reaction of particle-phase methyl esters and ozone elucidated by photoelectron resonance capture ionization: Direct products of ozonolysis and secondary reactions leading to the formation of ketones, Int. J. Mass Spectrom., 253, 38&amp;ndash;47, 2006b. </reference>
		<reference numeration="71" content_type="text"> Zahardis, J., LaFranchi, B. W., and Petrucci, G. A.: Photoelectron resonance capture ionization mass spectrometry of fatty acids in olive oil, Eur. J. Lipid Sci. Technol., 108, 925&amp;ndash;935, 2006c. </reference>
		<reference numeration="72" content_type="text"> Zahardis, J. and Petrucci, G. A.: The oleic acid-ozone heterogeneous reaction system: Products, kinetics, secondary chemistry, and atmospheric implications of a model system - a review Atmos. Chem. Phys., 7, 1237&amp;ndash;1274, 2007. </reference>
		<reference numeration="73" content_type="text"> Zhang, Q. and Anastasio, C.: Conversion of fogwater and aerosol organic nitrogen to ammonium, nitrate, and NO&lt;sub&gt;x&lt;/sub&gt; during exposure to simulated sunlight and ozone, Environ. Sci. Technol., 37, 3522&amp;ndash;3530, 2003. </reference>
		<reference numeration="74" content_type="text"> Zhao, Y., Hu, M., Slanina, S., and Zhang, Y.: Chemical compositions of fine particulate organic matter emitted from chinese cooking, Environ. Sci. Technol., 41, 99&amp;ndash;105, 2007. </reference>
		<reference numeration="75" content_type="text"> Ziemann, P. J.: Aerosol products, mechanisms, and kinetics of heterogeneous reactions of ozone with oleic acid in pure and mixed particles, Faraday Discuss., 130, 469&amp;ndash;490, 2005. </reference>
	</references>
</article>

