×

Method and apparatus for sample analysis

  • US 20040035183A1
  • Filed: 05/14/2003
  • Published: 02/26/2004
  • Est. Priority Date: 01/25/2000
  • Status: Active Grant
First Claim
Patent Images

1. A gas chromatograph and gaseous sample analysis system, comprising:

  • a sample loop for receiving a first volume of a gaseous sample;

    a separatory column fluidly connected to and downstream of the sample loop;

    an inline pressure-increasing valve downstream of the separatory column which increases system pressure to pneumatically focus the gaseous sample and reduces flow rate through the system; and

    a detector downstream or upstream of the pressure increasing valve for detecting analytes.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×