Aerosol mass spectrometry systems and methods

Fergenson, David P.; Gard, Eric E.

Aerosol mass spectrometry systems and methods

Patent · Tue Aug 20 04:00:00 EDT 2013

OSTI ID:1093251

Fergenson, David P.; Gard, Eric E.

A system according to one embodiment includes a particle accelerator that directs a succession of polydisperse aerosol particles along a predetermined particle path; multiple tracking lasers for generating beams of light across the particle path; an optical detector positioned adjacent the particle path for detecting impingement of the beams of light on individual particles; a desorption laser for generating a beam of desorbing light across the particle path about coaxial with a beam of light produced by one of the tracking lasers; and a controller, responsive to detection of a signal produced by the optical detector, that controls the desorption laser to generate the beam of desorbing light. Additional systems and methods are also disclosed.

Research Organization:: LLNL (Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States))

Sponsoring Organization:: USDOE

DOE Contract Number:: AC52-07NA27344

Assignee:: Lawrence Livermore National Security, LLC (Livermore, CA)

Patent Number(s):: 8,513,598

Application Number:: 12/338,623

OSTI ID:: 1093251

Country of Publication:: United States

Language:: English

References (6)

Laser Ionization Mass Spectroscopy of Single Aerosol Particles Murphy, D. M.; Thomson, D. S. Aerosol Science and Technology, Vol. 22, Issue 3 https://doi.org/10.1080/02786829408959743	journal	January 1995
Reagentless Detection and Classification of Individual Bioaerosol Particles in Seconds Fergenson, David P.; Pitesky, Maurice E.; Tobias, Herbert J. Analytical Chemistry, Vol. 76, Issue 2 https://doi.org/10.1021/ac034467e	journal	January 2004
Real-time characterization of individual aerosol particles using time-of-flight mass spectrometry Prather, Kimberly A.; Nordmeyer, Trent.; Salt, Kimberly. Analytical Chemistry, Vol. 66, Issue 9 https://doi.org/10.1021/ac00081a007	journal	April 1994
Real-Time Analysis of Individual Atmospheric Aerosol Particles: Design and Performance of a Portable ATOFMS Gard, Eric; Mayer, Joseph E.; Morrical, Brad D. Analytical Chemistry, Vol. 69, Issue 20 https://doi.org/10.1021/ac970540n	journal	October 1997
Aerodynamic Particle Sizing versus Light Scattering Intensity Measurement as Methods for Real-Time Particle Sizing Coupled with Time-of-Flight Mass Spectrometry Salt, Kimberly; Noble, Christopher A.; Prather, Kimberly A. Analytical Chemistry, Vol. 68, Issue 1 https://doi.org/10.1021/ac950396a	journal	January 1996
On-line single-particle analysis by laser desorption mass spectrometry McKeown, P. J.; Johnston, M. V.; Murphy, D. M. Analytical Chemistry, Vol. 63, Issue 18 https://doi.org/10.1021/ac00018a033	journal	September 1991

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Aerosol mass spectrometry systems and methods

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References (6)

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