MICROFABRICATED THERMAL MODULATOR FOR COMPREHENSIVE 2D GAS CHROMATOGRAPHY

  • US 20110088452A1
  • Filed: 10/18/2010
  • Published: 04/21/2011
  • Est. Priority Date: 10/19/2009
  • Status: Active Grant
First Claim
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1. A two-dimensional gas chromatography system comprising:

  • first and second columns;

    a thermal modulator operably disposed between said first and second columns, said thermal modulator having;

    a first micro channel stage operably coupled to said first column at an inlet,a second micro channel stage operably coupled to said second column at an outlet,an interconnection channel operably coupling said first micro channel stage and said second micro channel stage, andat least one cover member covering and sealing said first micro channel stage and said second micro channel stage; and

    at least one heater operably coupled with said thermal modulator, said micro heater thermal cycling said thermal modulator between a first temperature and a second temperature,wherein said thermal modulator trapping and focusing gas/vapor species upon said first temperature and releasing said gas/vapor species to said second column upon said second temperature.

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