When Cleaning Or Replacing The Liner - Thermo Scientific TRACE GC Ultra Maintenance And Troubleshooting Manual

PTV Injector Maintenance
It is a good practice to change the septum with a new one every time the liner is
replaced or cleaned. The operating sequence suggested for the replacement of the
septum is reported on page 147.

When cleaning or replacing the liner

The liner must be replaced periodically, depending on the number of injections
performed and the characteristics of the samples injected. Typical symptoms will
indicate that the liner must be replaced (refer to Chapter 19,
Troubleshooting). A dirty liner will generate tailing of sample peaks, particularly
for polar compounds, or disappearing of some peaks.
You can replace the liner with a new one or clean the liner and reinstall it. 
Table 9-2 shows the available types of liners for the PTV injector.
Application
®
Silcosteel liner, 2 mm ID (provided with the GC)
®
Silcosteel liner, 1 mm ID (provided with the GC)
Glass liner, 2 mm ID
Glass liner, 1 mm ID
®
Silcosteel liner for simile On-column injections
®
Silcosteel liner packed with quartz wool for LV injections
Glass sintered deactivated liner for Large Volume Injections
Deactivated glass liner with buffles
Deactivated glass liner for split and splitless injections
Glass liner, 2 mm ID with glass wool
It is good practice to replace the septum every time the liner is cleaned or
replaced. The operating sequence reported on page 151 describes how to:
•
•
Maintenance and Troubleshooting Manual
Table 9-2. Available liners for PTV injector
Remove the liner and the septum
Clean and reinstall the liner
Chapter 9
Maintaining a PTV Injector
Analytical
P/N
453 220 44
453 220 46
453 220 45
453 220 54
453 220 52
453 220 56
453 220 60
453 220 62
453 220 57
453 220 70
145