Straight Through Inlet Liners

Straight Through Liners

The narrow straight through liner   
    

Advantages

  • Great for FAST GC applications
  • Great for gaseous samples. (e. g. Purge and Trap)
  • Great for small injections 0.5µL or less
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    Disadvantages

  • Not suitable for >1uL injections
  • Can give high and low boiling point discrimination
  • Only suitable for split injections
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    The straight through liner   
        

    Advantages

  • Cheap
  • Good for gaseous samples. (eg. Purge and Trap)
  • OK for split injections of non-active samples
  •  

    Disadvantages

  • Allows the sample to contact the base seal.
  • Not for small ID columns
  • Can give high and low boiling point discrimination
  • Not the best reproducibility
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    Because the volume of the 2 mm ID liner is 1/ 4 of the 4 mm ID liner, there is a loss of volatiles out the top of the inlet liner.


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    SGE's liner selection tool helps you select the right inlet liner for your analysis

    The tool also includes a handy Vapor Volume Calculator that checks if you are injecting too much for a particular liner.  It can help you avoid the ghost peaks, injector contamination, and quantitation errors associated with Flashback.