Liner Selection

GC Inlet Liners - Selection Guide


Objectives of Sample Introduction

  • Representative aliquot from bulk sample
  • Fast vaporization in inlet liner
  • Expanded sample gas volume contained within inlet liner
  • Homogeneous mixing in liner
  • Representative transfer to column

Inlet Liners - Important Considerations

  • Must ensure complete vaporization of the sample before it reaches the column entrance
  • Must not react with the sample
  • The liner volume must be larger than the volume of vaporized sample
  • Should minimize discrimination not promote it
  • Adding quartz wool will increase the surface area of the sample and promote mixing
  • Liner should be deactivated especially for analysis of polar solutes and for splitless injections
  • Quartz wool should be placed in the optimum position

Benefits of SGE Inlet Liners

  • Range covers all applications and all popular instrument makes/ models
  • Range covers vaporizing and cool on-column injection techniques
  • Inlet liners ensure complete transfer of sample from syringe to the column without loss
  • Improved liner designs have improved both precision and accuracy of sample transfer

SGE Inlet Liners

Straight Through Inlet Liners >>

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.