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Chromatography apparatus having diffusion bonded coupler

  • US 9,188,571 B2
  • Filed: 08/23/2012
  • Issued: 11/17/2015
  • Est. Priority Date: 08/26/2011
  • Status: Active Grant
First Claim
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1. A chromatography apparatus, comprising:

  • a microfluidic substrate comprising a ceramic material having a chromatography column therein, the ceramic material having a flat surface with an inlet therein that is in fluidic communication with the chromatography column;

    a coupler comprising a metal body with an opening therethrough, the metal body having a flat surface that is diffusion bonded to the flat surface of the microfluidic substrate so that the opening in the coupler is aligned to the inlet of the microfluidic substrate; and

    a sealing fitting comprising a heat-resistant sealant disposed in the opening of the coupler and being in contact with the flat surface of the substrate.

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