Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Chemical analysis
Reexamination Certificate
2005-10-25
2005-10-25
Hoff, Marc S. (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Chemical analysis
C702S024000, C702S030000, C250S285000, C250S287000
Reexamination Certificate
active
06959248
ABSTRACT:
A method and system of identifying individual aerosol particles in real time. Sample aerosol particles are compared against and identified with substantially matching known particle types by producing positive and negative test spectra of an individual aerosol particle using a bipolar single particle mass spectrometer. Each test spectrum is compared to spectra of the same respective polarity in a database of predetermined positive and negative spectra for known particle types and a set of substantially matching spectra is obtained. Finally the identity of the individual aerosol particle is determined from the set of substantially matching spectra by determining a best matching one of the known particle types having both a substantially matching positive spectrum and a substantially matching negative spectrum associated with the best matching known particle type.
REFERENCES:
patent: 4946970 (1990-08-01), Green et al.
patent: 5109691 (1992-05-01), Corrigan et al.
patent: 5218529 (1993-06-01), Meyer
patent: 5681752 (1997-10-01), Prather
patent: 5798526 (1998-08-01), Shenk et al.
patent: 5854676 (1998-12-01), Bleuse et al.
patent: 5880830 (1999-03-01), Schechter
patent: 5900634 (1999-05-01), Soloman
patent: 5946640 (1999-08-01), Goodacre et al.
patent: 5998215 (1999-12-01), Prather et al.
patent: 6091843 (2000-07-01), Horesh et al.
patent: 6259101 (2001-07-01), Wexler et al.
patent: 6266390 (2001-07-01), Sommer et al.
patent: 6490530 (2002-12-01), Wyatt
patent: 0 909 426 (2001-07-01), None
patent: WO 01/88531 (2001-11-01), None
patent: WO 01/93307 (2001-12-01), None
Xin-Hua Song et al, Classification of Single Particles Analyzed by ATOFMS using an Artificial Neural Network, ART-2A, Anal. Chem. 1999 vol. 71, No. 4 Feb. 1999.
A. Trimborn et al, Online Analysis of Atmospheric Particles with a Transportable Laser Mass Spectrometer, Aerosol Science and Technology 33:191-201 (2000).
Eric E. Gard et al, Real-time analysis of Individual Atmospheric Aerosol Particles: Design and Performance of a Portable ATOFMS, Anal. Chem. 1997 vol. 69 pp. 4083-4091.
Phillip V. Tan et al, Chemically-Assigned Classification of Aerosol Mass Spectra, American Society for Mass Spectrometry 2002 vol. 13, 826-838.
D. T. Suess et al, Mass spectrometry of Aerosols, Chem. Rev. 1999 vol. 99 pp. 3007-3035.
Fergenson David Philip
Gard Eric Evan
Barbee Manuel L.
Hoff Marc S.
Tak James S.
The Regents of the University of California
Thompson Alan H.
LandOfFree
Real-time detection method and system for identifying... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Real-time detection method and system for identifying..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Real-time detection method and system for identifying... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3468397