FAST GAS CHROMATOGRAPH METHOD AND DEVICE FOR ANALYZING A SAMPLE

  • US 20120085148A1
  • Filed: 10/06/2010
  • Published: 04/12/2012
  • Est. Priority Date: 10/06/2010
  • Status: Active Grant
First Claim
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1. A method for fast gas chromatography analysis, said method comprising:

  • injecting a sample to be analyzed into a gas chromatograph injector that is coupled to a gas chromatography capillary column;

    transferring said sample in said injector into said capillary column with a carrier gas flow;

    transferring said capillary column through a gas chromatograph oven as a flexible non-rigid capillary into a resistively heated metal tube having opposing input and output ends;

    locating the input and output ends of said resistively heated metal tube near a hole in the gas chromatograph oven body so that a substantial portion of said column in said heated metal tube is located outside said gas chromatograph oven and so that said input and output ends project a short distance inside said gas chromatograph oven;

    introducing an end of said portion of said capillary column that is outside the gas chromatograph oven from said heated metal tube into said gas chromatograph oven as a flexible capillary;

    connecting said flexible capillary with a transfer line that leads into a gas chromatograph detector;

    connecting both ends of said resistively heated metal tube to a power supply; and

    resistively heating said heated metal tube in a time programmed manner to facilitate fast temperature program of said capillary column;

    wherein said capillary column is flexibly connected to said gas chromatograph injector and detector.

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