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
07339165
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.
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Chun Richard K.
Donaldson William S.
Berman Jack I.
Carlson & Gaskey & Olds
Hamilton Sundstrand Corporation
Hashmi Zia R.
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