Inlet Liners Selection Guide

For Split Injection
Quartz wool in liner
  • Promotes mixing of analytes and results in better quantitation
  • Provides a large surface area which aids the vaporization of liquid samples
  • Acts as a trap to collect non-volatile residue in the sample
  • Protects capillary column from ‘dirty’ samples
  • Prevents sample hitting the bottom of the injector before volatilization
Quartz wool in the liner located at the optimum position (FocusLiner™)
  • Excellent reproducibility results from wiping the sample from the syringe needle and preventing droplet formation
  • Results in lower mass discrimination
  • Quartz wool prevents the sample hitting the bottom of the injector
Double glass baffling (FocusLiner™)
  • Ensures quartz wool remains in the correct position in the liner
  • Top baffle prevents quartz wool shifting towards septum
  • Bottom baffle prevents quartz wool being pushed down into the liner
For Splitless Injection
Taper at the bottom of liner
  • The taper minimizes contact of analytes with the bottom of the injection port. This is especially important in splitless injection mode because the residence time of the sample in the liner is longer
  • Column installation into the liner becomes more robust because the taper ‘channels’ the analytes into the column. The distance the column is inserted into the liner is not so critical
 
For Splitless Injection
– Very Active Compounds
  • The taper minimizes contact of analytes with the bottom of the injection port. This is especially important in splitless injection mode because the residence time of the sample in the liner is longer
  • No quartz wool
For Fast GC Column Analysis
Narrow internal diameter
  • Results in smaller peak widths
  • Especially suited for (0.1mm ID) Fast Columns

<< FocusLiner™ (Quartz Wool)

 


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.