Abstract
Individual aerosol particles sampled in the north of the city Karlsruhe were analysed with a TOF-SIMS instrument. The results confirmed the integral analysis of many particles [1]. In order to employ a signal pattern analysis of the negative secondary ions for the classification of organic compounds an earlier classification scheme for 5 keV Ar+ bombardment was found to be generally also applicable for the TOF-SIMS conditions. Two main classes of particles were distinguished, which consist of submicron mainly organic particles of vehicle traffic provenance on one side and coarse particles of geogenic sources on the other side. Additionally, the geogenic class could be devided into a fraction consisting of lime soil and a fraction with alumo-silicate soil. A quantification of the class population was performed by counting the particles of different type.
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Bentz, J.W.G., Goschnick, J., Schuricht, J. et al. Analysis and classification of individual outdoor aerosol particles with SIMS time-of-flight mass spectrometry. Fresenius J Anal Chem 353, 603–608 (1995). https://doi.org/10.1007/BF00321333
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DOI: https://doi.org/10.1007/BF00321333