3
Performing Injectors Routine Maintenance
Maintaining a Split/Splitless Injector (SSL)
Thermo Scientific
TRACE 1300 and TRACE 1310 Hardware Manual
85
2. Cool the oven and injector to room temperature.
3. Turn the carrier gas off, and wait for the carrier pressure to go to zero.
4. Put the autosampler away if present.
5. Open the module flap cover.
6. Remove the top parts of the injector.
a.
Unscrew the septum cap of the injector.
b. Unscrew the ring nut.
c.
Remove the septum holder/liner cap with septum from the injector body head.
7. Remove the liner.
a.
Using tweezers, remove the liner with the liner seal (o-ring) from the injector.
8. Replace or clean the liner.
• If you are going to use a new liner, go directly to
.
• If you are going to clean the dirty liner, go to
.
9. Clean the liner.
a.
Put the liner into an ultrasonic cleaner filled with a methanol/acetone mixture (1:1).
b. Sonicate the liner for about half an hour.
c.
Using tweezers, remove the liner from the bath and dry it with compressed clean air.
10. Install the liner.
a.
Holding the new (or cleaned) liner with tweezers place a new liner seal over the liner.
b. Insert the liner into the injector, and push it gently towards the bottom of the
injector.
11. Reinstall the top parts of the injector.
a.
Place the septum holder/ liner cap with the septum on the body head of the injector,
and fix it by screwing the ring nut.
b. Screw and tighten the septum cap to finger-tight.
Note
By pressing the
Maintenance
button, the GC cool down is automatically
carried out.
CAUTION
Be careful not to break the glass liner when removing it. Glass splinters might
fall into the lower part of the vaporization chamber. If the glass liner breaks, see
CAUTION
Do not overtighten the septum cap because you might damage the septum and
affect instrument performance.