PlasmaQuant MS Series
Sample
Introduction
31
3.
Screw the nebulizer holder on the syringe.
4.
Slide the nebulizer with the tip first into the holder. The argon gas connection
should be fitted into the groove of the holder.
5.
Hold the nebulizer cleaning tool over a receptacle and push the plunger into the
syringe. The solution should flow out of both sample and argon inlets. To remove
stuck particles from the nebulizer cannula you can increase the pressure by closing
the carrier gas adapter with a finger. Use the same method to increase the
pressure by closing the sample inlet to remove particles from the argon inlet.
6.
Gently shake the nebulizer cleaning tool to remove the cleaning solution from the
nebulizer.
7.
Remove the nebulizer from the holder. Shake any remaining cleaning solution
from the nebulizer cleaning tool.
8.
Place the nebulizer once again in the holder and move the plunger three times
quickly in and out to remove the cleaning solution also from the nebulizer.
9.
Remove the nebulizer from the holder. Re-fit the nebulizer to the sample
introduction. Purge the nebulizer with argon for at least 3 minutes.
1 nebulizer
2 nebulizer
holder
3 red O-ring
4 syringe
5 plunger
Figure 4-8 – Nebulizer cleaning tool
4.5.4
Removing and Replacing the Spray chamber
NOTE
To replace the assembly, use the same procedures in reverse.
1.
Ensure the plasma is off and all parts have had sufficient time to cool.
2.
Remove the clamp connecting the transfer tube to the spray chamber.
3.
Disconnect the tubing.
4.
Remove the nebulizer as per section 4.5.2, page 30.
5.
Remove the two thumbscrews from the top of the spray chamber housing and lift
the top cover off the housing.
6.
Carefully remove the spray chamber glassware.
7.
Remove the spray chamber cap from the spray chamber body