Radiant energy – Ionic separation or analysis – With sample supply means
Reexamination Certificate
2008-03-04
2008-03-04
Berman, Jack I. (Department: 2881)
Radiant energy
Ionic separation or analysis
With sample supply means
C250S284000, C250S287000, C250S286000, C250S42300F, C250S293000, C250S281000, C250S282000, C313S359100, C219S121140
Reexamination Certificate
active
11174915
ABSTRACT:
A chemical biological detection system detects the presence of biological agents in the air. The system includes a pyrolyzer having an inlet through which air is drawn into the pyrolyzer and a pyrotube that collects a sample of particles extracted from the air. The pyrolyzer further includes an exhaust line that exhausts the air drawn into the pyrolyzer and a sample line that directs the gases eluted from the sample collected in the pyrotube to a mass spectrometer for sample identification. After the sample is collected in the pyrotube, the sample is analyzed. A small droplet of a methylating reagent is added to the sample. If the sample includes any biological agents, the methylating reagent derivatizes organic materials to make them more volatile. The sample is then pyrolyzed, and the eluted gas sample is drawn through the sample line and into the mass spectrometer for identification of any biological agents.
REFERENCES:
patent: 4251725 (1981-02-01), Adkisson
patent: 6627881 (2003-09-01), Bertrand et al.
patent: 7057168 (2006-06-01), Miller et al.
patent: 2005/0133716 (2005-06-01), Miller et al.
Harrington, Peter de B., Validation Using Sensitivity and Target Transform Factor Analyses of Neural Network Models for Classifying Bacteria from Mass Spectra, American Society for Mass Spectrometry, Oct. 11, 2001, Elsevier Science Inc.
Hendricker et al., Rapid Chemotaxonomy of Pathogenic Backterial Using in Situ Thermal Hydrolysis and Methylation as a Sample Preparation Step Coupled With a Field-portable Member-inlet Quadrupole Ion Trap Mass Spectrometer, International Journal of Mass Spectrometry, Nov. 3, 1998, Elsevier Science B.V.
Basile et al., Pathogenic Bacteria: Their Dectection and Differentiation by Rapid Lipid Profiling With Pyrolysis Mass Spectrometry, Trends in Analytical Chemistry, vol. 17 No. 2, 1998, Elsevier Science B.V.
Chun Richard K.
Donaldson William S.
Berman Jack I.
Carlson & Gaskey & Olds
Hamilton Sundstrand Corporation
Hashmi Zia R.
LandOfFree
Dual outlet pyrolyzer for biological agent detection system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dual outlet pyrolyzer for biological agent detection system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual outlet pyrolyzer for biological agent detection system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3934802