Measuring and testing – Sampler – sample handling – etc. – With constituent separation
Reexamination Certificate
2006-05-01
2009-10-13
Noland, Thomas P (Department: 2856)
Measuring and testing
Sampler, sample handling, etc.
With constituent separation
C073S863120, C073S863230, C073S023370, C073S023410, C073S031010
Reexamination Certificate
active
07600439
ABSTRACT:
The present invention provides a method and system for collecting and storing an atmospheric sample for eventual analysis, where the atmospheric sample includes a mixture of at least a matrix and an analyte. In one implementation, the system includes a housing; a sample cartridge removably attached to the housing, and a pump integrated with the housing and in fluid communication with the sample cartridge, the pump being configured to draw the atmospheric sample through the sample cartridge and to subsequently evacuate the matrix from the sample cartridge. The sample cartridge includes a low thermal mass cylinder with a first end and a second end; an inlet port with a gas-tight inlet valve at the first end of the cylinder, an outlet port with a gas-tight outlet valve at the second end of the cylinder, and a sorbent material disposed within the cylinder and adapted to trap the analyte from the atmospheric sample. In addition, the interior surfaces of the cylinder, inlet valve, and outlet valve upon which sorbent material is not disposed are chemically passive.
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Grossenbacher John W.
Patterson Garth E.
Finnegan Henderson Farabow Garrett & Dunner LLP
Griffin Analytical Technologies, Inc.
Noland Thomas P
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