Single Particle Mass Spectrometry Combustion Source Characterization and Atmospheric Apportionment of Vehicular, Coal and Biofuel Exhaust Emissions
Author: David Townsend Suess
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Published: 2002
Total Pages: 814
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Author: David Townsend Suess
Publisher:
Published: 2002
Total Pages: 814
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DOWNLOAD EBOOKAuthor: David Alan Sodeman
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Published: 2004
Total Pages: 508
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DOWNLOAD EBOOKAuthor: Sylvia Harriet Pastor
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Published: 2003
Total Pages: 1244
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DOWNLOAD EBOOKAuthor:
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Published: 2003
Total Pages: 860
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DOWNLOAD EBOOKAuthor: Daniel Mira Salama
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Published: 2007
Total Pages: 266
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DOWNLOAD EBOOKAuthor: Ryan Jay Wenzel
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Published: 2004
Total Pages: 454
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DOWNLOAD EBOOKAuthor: Maria Anna Zawadowicz
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Published: 2017
Total Pages: 219
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DOWNLOAD EBOOKThis thesis explores ways in which single particle mass spectrometry can be extended, whether through hardware improvements, or through the use of advanced data processing techniques to provide new kinds of aerosol chemistry measurements. Most of this work has been carried out using the Particle Analysis by Laser Mass Spectrometry (PALMS) instrument, an aircraft deployable mass spectrometer that uses intense (~10^9 Wcm^-2 ) UV laser pulses to vaporize and ionize single particles and measures their mass spectra using a time-of-flight mass spectrometer. Near-term and long-term hardware improvements as well as advanced data analysis techniques are explored in order to extract new chemical information from the thus obtained single particle mass spectra. Hardware improvements to PALMS are explored, such as the use of a high-powered femtosecond laser to obtain single particle mass spectra and a new high resolution compact mass analyzer. Also, a new commercial mass spectrometer LAAPToF is characterized and compared to PALMS. In addition to hardware improvements, novel data analysis techniques for analysis of single particle mass spectra were developed as a part of this work. In particular, a new method to identify biologically-derived particles is presented and used to derive vertical profiles of bioaerosol from near-surface to the upper troposphere.
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Published: 1979
Total Pages: 8
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DOWNLOAD EBOOKAuthor: Andrew G. Sharkey
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Published: 1963
Total Pages: 40
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DOWNLOAD EBOOKAuthor: T. Kessler
Publisher:
Published: 1973
Total Pages: 16
ISBN-13:
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