%0 Journal Article %1 Holzinger:2010p2676 %A Holzinger, R %A Williams, J %A Herrmann, F %A Lelieveld, J %A Donahue, Neil M %A Rockmann, T %D 2010 %J Atmospheric Chemistry and Physics %K Analysis, Atmosphere, Evolution, High-Resolution, Instrument, Isoprene, Online Photooxidation Secondary, Spectra, Toluene, %N 5 %P 2257--2267 %T Aerosol analysis using a Thermal-Desorption Proton-Transfer-Reaction Mass Spectrometer (TD-PTR-MS): a new approach to study processing of organic aerosols %U http://apps.isiknowledge.com/InboundService.do?Func=Frame&product=WOS&action=retrieve&SrcApp=Papers&UT=000275505500012&SID=1A2Fp8PfL1kCj%2540%2540na97&Init=Yes&SrcAuth=mekentosj&mode=FullRecord&customersID=mekentosj&DestFail=http%253A%252F%252Faccess.isiproducts.com%252Fcustom_images%252Fwok_failed_auth.html %V 10 %X We present a novel analytical approach to measure the chemical composition of organic aerosol. The new instrument combines proton-transfer-reaction mass-spectrometry (PTR-MS) with a collection-thermal-desorption aerosol sampling technique. For secondary organic aerosol produced from the reaction of ozone with isoprenoids in a laboratory reactor, the TD-PTR-MS instrument detected typically 80% of the mass that was measured with a scanning mobility particle sizer (SMPS). The first field deployment of the instrument was the EUCAARI-IOP campaign at the CESAR tall tower site in the Netherlands. For masses with low background values (similar to 30% of all masses) the detection limit of aerosol compounds was below 0.2 ng/m(3) which corresponds to a sampled compound mass of 35 pg. Comparison of thermograms from ambient samples and from chamber-derived secondary organic aerosol shows that, in general, organic compounds from ambient aerosol samples desorb at much higher temperatures than chamber samples. This suggests that chamber aerosol is not a good surrogate for ambient aerosol and therefore caution is advised when extrapolating results from chamber experiments to ambient conditions.

@article{Holzinger:2010p2676, abstract = {We present a novel analytical approach to measure the chemical composition of organic aerosol. The new instrument combines proton-transfer-reaction mass-spectrometry (PTR-MS) with a collection-thermal-desorption aerosol sampling technique. For secondary organic aerosol produced from the reaction of ozone with isoprenoids in a laboratory reactor, the TD-PTR-MS instrument detected typically 80% of the mass that was measured with a scanning mobility particle sizer (SMPS). The first field deployment of the instrument was the EUCAARI-IOP campaign at the CESAR tall tower site in the Netherlands. For masses with low background values (similar to 30% of all masses) the detection limit of aerosol compounds was below 0.2 ng/m(3) which corresponds to a sampled compound mass of 35 pg. Comparison of thermograms from ambient samples and from chamber-derived secondary organic aerosol shows that, in general, organic compounds from ambient aerosol samples desorb at much higher temperatures than chamber samples. This suggests that chamber aerosol is not a good surrogate for ambient aerosol and therefore caution is advised when extrapolating results from chamber experiments to ambient conditions.}, added-at = {2010-06-22T19:38:37.000+0200}, affiliation = {Inst Marine {\&} Atmospher Res Utrecht, NL-3584 CC Utrecht, Netherlands}, author = {Holzinger, R and Williams, J and Herrmann, F and Lelieveld, J and Donahue, Neil M and Rockmann, T}, biburl = {https://www.bibsonomy.org/bibtex/2dcebbb516907171689305025df6320b3/gsmith}, date-added = {2010-03-29 14:06:43 -0400}, date-modified = {2010-03-29 14:07:30 -0400}, interhash = {7bfb09c3da3a5f606465837f88969722}, intrahash = {dcebbb516907171689305025df6320b3}, journal = {Atmospheric Chemistry and Physics}, keywords = {Analysis, Atmosphere, Evolution, High-Resolution, Instrument, Isoprene, Online Photooxidation Secondary, Spectra, Toluene,}, language = {English}, local-url = {file://localhost/Users/geoffreysmith/Documents/Papers/Atmospheric%20Chemistry%20and%20Physics/2010/Atmospheric%20Chemistry%20and%20Physics,%2010,%202257-2267%202010.pdf}, month = Jan, number = 5, pages = {2257--2267}, pmid = {000275505500012}, rating = {0}, read = {Yes}, timestamp = {2010-06-22T19:39:28.000+0200}, title = {Aerosol analysis using a Thermal-Desorption Proton-Transfer-Reaction Mass Spectrometer (TD-PTR-MS): a new approach to study processing of organic aerosols}, uri = {papers://E88B624E-D406-46FF-9D95-BB9C1AAE3FDC/Paper/p2676}, url = {http://apps.isiknowledge.com/InboundService.do?Func=Frame&product=WOS&action=retrieve&SrcApp=Papers&UT=000275505500012&SID=1A2Fp8PfL1kCj%2540%2540na97&Init=Yes&SrcAuth=mekentosj&mode=FullRecord&customersID=mekentosj&DestFail=http%253A%252F%252Faccess.isiproducts.com%252Fcustom_images%252Fwok_failed_auth.html}, volume = 10, year = 2010 }