17 Chromatographic Checkoutï€
266 Operation Manual
6 Start the run.
If performing an injection using an autosampler, start the run using the data system or
press .
If performing a manual injection (with or without a data system):
a Select to prepare the inlet for splitless injection.
b When the GC becomes ready, inject 1 µL of the checkout sample and press .
7 The following chromatogram shows typical results for a new detector with new
consumable parts installed.
Sulfur performance
1 Install the sulfur filter.
2 Ignite the FPD+ flame, if not lit.
3 Display the signal output and monitor. This output typically runs between 50 and 60 but
can be as high as 70. Wait for the output to stabilize. This takes approximately 2 hours.
If the baseline output is too high:
• Check column installation. If installed too high, the stationery phase burns in the flame
and increases measured output.
• Check for leaks.
• Bake out the detector and column at 250 °C.
• Wrong flows set for installed filter
If the baseline output is zero, verify the electrometer is on and the flame is lit.
4 If using a data system, prepare the data system to perform one run using the loaded
checkout method. Make sure the data system will output a chromatogram.
5 Start the run.
If performing an injection using an autosampler, start the run using the data system or
press .
If performing a manual injection (with or without a data system):
a Select to prepare the inlet for splitless injection.
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