Gas separation: apparatus – Chromatography type apparatus
Reexamination Certificate
2006-12-12
2006-12-12
Greene, Jason M. (Department: 1724)
Gas separation: apparatus
Chromatography type apparatus
C096S102000, C096S143000, C096S146000, C095S082000, C095S087000, C095S115000, C073S023350, C073S023410, C205S640000, C205S666000, C204S192100
Reexamination Certificate
active
07147695
ABSTRACT:
Devices for enhancing the sensitivity of a microsensor or any other micro device by providing on-line preconcentration. Microconcentrators that can be integrated with a sensor or a micromachined GC to enhance the signal to noise ratio can include a miniaturized sorbent trap fabricated on a microchip. The microconcentrator can be made on a silicon substrate so that a sensor can be integrated on the same chip. The microconcentrator is composed of at least one microchannel lined with a microheater for in-situ heating. Preconcentration may be achieved on a thin-film polymeric layer deposited above the heater in the microchannel. Rapid heating by the channel heater generates a “desorption pulse” to be injected into a detector or a sensor.
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Greene Jason M.
Kaplan, Gibman, Gibson & Dernier
New Jersey Institute of Technology
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