Baking-Out Contaminants From Ssl, Sslbkf, Hes-S/Sl, Ptv, And Ptvbkf Injectors - Thermo Scientific TRACE 1600 Hardware Manual

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Injectors Advanced Maintenance

Baking-out Contaminants from SSL, SSLBKF, HeS-S/SL, PTV, and PTVBKF Injectors

Baking-out Contaminants from SSL, SSLBKF, HeS-S/SL, PTV, and
PTVBKF Injectors
244 TRACE 1600/1610 Hardware Manual
Perform this operation to bake-out contaminants from SSL, SSLBKF, HeS-S/SL, PTV, and
PTVBKF injectors.
 To bake-out contaminants from the injector
1. Put the inlet into Split injection mode.
2. Select Constant Flow mode and enter the normal operating Column flow value.
3. Set Split flow to 200 mL/min.
4. Purge the column with carrier flow for at least 10 minutes before heating the oven.
5. If the column is connected to the detector, set the detector 25 °C above normal operating
temperature. If the column is not attached to the detector, cap the detector fitting.
In case of PDD detector, it is strongly recommended disconnecting the column from the
detector.
6. Set the injector temperature to 300 °C or 25 °C above the normal operating temperature
to bake out contaminants from the injector, mostly through the split vent.
7. Set the oven temperature 25 °C above the GC method final oven temperature to bake
contaminants from the column. Do not exceed the column manufacturer's maximum
temperature limit.
8. Bake-out for 30 minutes or until the detector baseline is free of contamination peaks.
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