Chromatographic Checkout 6
Operation Manual 89
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.
Tributylphosphate
Isooctane t-Butyldisulfide
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