5 Maintenance
Cleaning the spray chamber - weekly
93 Agilent Triple Quadrupole LC/MS System User Guide
5 Attach the calibrant bottle onto the fixed bottle cap. Turn the calibrant bottle
counterclockwise to tighten.
The bottle only needs to be snug. Do not over-tighten the bottle. A leaky bottle
cap can prevent the bottle from pressurizing and can lead to the evaporation of
the contents.
The tuning mixes are not interchangeable. Failure to change the tuning mix
when the source or inlet assembly is changed can result in miscalibration of
the instrument and errors in mass assignments.
Cleaning the spray chamber - weekly
Perform this maintenance weekly or whenever symptoms indicate that
contamination exists in the spray chamber and normal daily cleaning does not
correct the problem.
Tools needed:
• Clean powder-free nitrile gloves
• Clean lint-free cloth
• LC/MS-grade isopropanol
• LC/MS-grade water
• Clean wash bottle
• 4000 grit abrasive paper
To perform weekly cleaning of the spray chamber,
1 Put on clean powder-free nitrile gloves.
2 Disconnect the nebulizer sample line and sample nebulizer gas tubing from
the nebulizer.
3 Disconnect all cables and tubings from the instrument.
4 Open the latch of spray chamber.
5 Open the spray chamber.
6 Put the source under a fume hood.
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