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Thermoelectric sensor for analytes in a gas and related method

  • US 20080053194A1
  • Filed: 12/02/2006
  • Published: 03/06/2008
  • Est. Priority Date: 04/28/2003
  • Status: Abandoned Application
First Claim
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1. An apparatus for sensing an analyte in a gas, the apparatus comprising:

  • a gas collecting device within the apparatus for collecting the gas containing the analyte;

    a gas input in fluid communication with the gas collecting device for inputting the gas containing the analyte into the gas collecting device,an analyte interactant in fluid communication with the gas collecting device, wherein the analyte interactant, when contacted by the analyte, reacts to cause a change in thermal energy within the gas collecting device, the anlayte interactant being disposed in a plurality of regions separate from one another;

    a thermopile device comprising at least one thermopile thermally coupled to the gas collecting device to generate a signal in response to the change in thermal energy, wherein the signal comprises information useful in characterizing the analyte.

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