Thermal Desorption Chemical Ionization Mass Spectrometer for Ultrafine Particle Chemical Composition
TLDR
In this article, a thermal desorption chemical ionization mass spectrometer was developed for real-time quantitative chemical analysis of ultrafine particles, which combines recently developed nanoparticle separation and collection techniques with highly sensitive chemical analysis provided by selected ion chemical ionisation mass analyzer.Abstract:
A thermal desorption chemical ionization mass spectrometer has been developed for real time, quantitative chemical analysis of ultrafine particles. The technique combines recently developed nanoparticle separation and collection techniques with highly sensitive chemical analysis provided by selected ion chemical ionization mass spectrometry. Sensitivity tests using laboratory-generated ammonium sulfate particles in the diameter range 10-16 nm show that sulfate and ammonium can be quantified with as little as 1 pg of collected aerosol mass. Such sensitivity makes this instrument suitable for real time measurements of the chemical composition of sub-10 nm particles reported recently from nucleation events.read more
Citations
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Journal ArticleDOI
Formation and growth rates of ultrafine atmospheric particles: a review of observations
Markku Kulmala,Hanna Vehkamäki,Tuukka Petäjä,M. Dal Maso,Antti Lauri,V.-M. Kerminen,Wolfram Birmili,Peter H. McMurry +7 more
TL;DR: In this paper, the formation rate of 3-nm particles is often in the range 0.01-10 cm −3 s −1 in the boundary layer in urban areas and in coastal areas and industrial plumes.
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Field-Deployable, High-Resolution, Time-of-Flight Aerosol Mass Spectrometer
Peter F. DeCarlo,Joel R. Kimmel,A. Trimborn,M. J. Northway,John T. Jayne,Allison C. Aiken,Marc Gonin,Katrin Fuhrer,Thomas Horvath,Kenneth S. Docherty,Doug Worsnop,Jose L. Jimenez +11 more
TL;DR: The development of a new high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS) is reported, which allows the direct separation of most ions from inorganic and organic species at the same nominal m/z, and the quantification of several types of organic fragments.
Journal ArticleDOI
Chemical and microphysical characterization of ambient aerosols with the aerodyne aerosol mass spectrometer
Manjula R. Canagaratna,John T. Jayne,Jose L. Jimenez,James Allan,M. R. Alfarra,Qi Zhang,Timothy B. Onasch,Frank Drewnick,Hugh Coe,Ann M. Middlebrook,A. E. Delia,Leah R. Williams,A. Trimborn,M. J. Northway,Peter F. DeCarlo,Charles E. Kolb,Paul Davidovits,Douglas R. Worsnop +17 more
TL;DR: A detailed discussion of the strengths and limitations of the AMS measurement approach is presented and how the measurements are used to characterize particle properties are reviewed to highlight the different applications of this instrument.
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Nucleation and Growth of Nanoparticles in the Atmosphere
TL;DR: Nucleation and Growth of Nanoparticles in the Atmosphere Renyi Zhang,* Alexei Khalizov, Lin Wang, Min Hu, and Wen Xu.
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Chemical characterization of particulate emissions from diesel engines: A review
TL;DR: In this paper, the chemical properties of particulate matter (PM) in diesel vehicle exhaust at a time when emission regulations, diesel technology development, and particle characterization techniques are all undergoing rapid change are examined.
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