Maintenance and care PlasmaQuant MS product family
102
10.3.2 Cleaning the spray chamber
The function of the spray chamber is to act as a filter for the sample droplets. Fine
droplets go through the spray chamber up to the torch and the larger droplets hit the
side of the spray chamber and coalesce to form larger droplets, which then move down
the drain tubing to the waste liquid vessel. To provide effective filtering, the surface of
the spray chamber must always be clean and free of contaminants.
The plastic end cap on the spray chamber (which holds the nebulizer) contains two O-
rings (one that fits around the spray chamber and the other that grips the nebulizer).
These should be inspected and replaced periodically.
1. Turn off the plasma by clicking on the
[PLASMA] button on the main toolbar or
pressing [F4] before removing the
nebulizer.
Remove the nebulizer from the end cap
of the spray chamber (see section
"
Cleaning the nebulizer" p. 100).
Store the nebulizer in a safe place to
avoid breakage.
3. Remove the glassware clamp that
secures the spherical joint of the spray
chamber and the transfer tube.
4. Rotate the mounting arm outward to
disengage the spray chamber and
transfer tube.
5. Unscrew the two thumbscrews on the
upper cover of the spray chamber and
lift the upper cover to remove it.
Removing the spray
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