Inlet Liners

Inlet Liners

Inlet Liners Product Lines:

Choose the Appropriate Inlet Liner For Your Instrument.

Inlet liners are available in a variety of styles and sizes. For help with your selection, call our customer service department with your specifications or visit our web site for a complete list of styles by manufacturer.
SGE is a leader in deactivation technology. SGE liners are deactivated using high temperature (420°C) gas phase deactivation. Reduced active sites mean no unwanted reaction to your samples. Liners are supplied in blister packs to prevent contamination.

For Most Applications FocusLiner* is the Best Choice.

Major contributors to poor reproducibility in split and splitless analysis are the transfer of the sample from the syringe needle, control of th evaporization process and movement of sample through the liner. The position of the quartz wool in the liner is critical.

SGE FocusLiner overcomes the quartz wool shifting problem. Using a simple but effective design, the quartz wool is held in place by means of two tapered sections in the liner. The tapered sections are located to ensure that the needle tip penetrates the secured quartz wool plug, wiping any residue liquid sample from the needle tip while providing sufficient surface area for volatization of the liquid sample. A Relative Standard Deviation (RSD) of 5-10% is common for a straight through liner.

With the SGE FocusLiner, a RSD of less than 1% using external standard calibration is easily achievable showing the effectiveness of the secured quartz wool.
These innovative liners are recognized as the industry standard liner; are the preferred liner for split/splitless injection; improve reproducibility 10 times and are ideal for dirty samples.

Liner Selection:

For Split Injection:
Quartz wool in the 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:
-Tapered 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