Laser desorption/laser ionization/time-of-flight mass spectrometer for the detection of polycyclic aromatic hydrocarbons desorbed from soot

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ConferenceCombustion Institute Canadian Section, 2007 Spring Technical Meeting, May 13-16, Banff, AB
AbstractRecent advances in the field of laser desorption/laser ionization mass spectrometry (LD/LI/MS) have renewed interest in these separation methods for fast analysis of chemical species adsorbed on soot particles. These techniques provide mass-separation of the desorbed phase with high selectivity and sensitivity and require very small amounts of soot to be collected. In particular the techniques provide a means to measure adsorbed polycyclic aromatic hydrocarbons (PAHs). PAHs are important precursors of carbonaceous soot particles, thus influence the quantity and morphology of particulate emission from various combustion processes. Furthermore, PAHs absorbed on the surface of the soot particles contribute to the carcinogenicity of the particles. Therefore, there is scientific interest in characterizing and quantifying these adsorbed PAHs in order to provide key information about the mechanism of the soot formation for various fuels and combustors and to understand their health impact. This has motivated various studies; however, an extensive characterization of the PAHs absorbed onto soot particles remains a challenge.
Publication date
AffiliationNRC Institute for Chemical Process and Environmental Technology; National Research Council Canada (NRC-CNRC)
Peer reviewedNo
NRC number51585
NPARC number8894828
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Record identifier19f0b7f4-04e3-4859-ad5e-5ee386f0b31e
Record created2009-10-02
Record modified2016-05-09
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