PerkinElmer aanalyst 200 User Manual page 286

Maintenance
Maintaining Optimum Nebulizer Performance
To maintain optimum nebulizer performance, you must periodically clean the capillary
assembly, and occasionally replace the capillary (sample) tubing. See
Figure 9- 13 for an exploded view of the nebulizer.
Also, the nebulizer is only a part of the overall burner system. For optimum burner-system
performance, it is important to periodically clean the nebulizer, burner chamber, burner heads,
and the end cap.
When aspirating concentrated samples with complex matrices, it is especially important to keep
the burner chamber and nebulizer free of sample deposits. In addition to regular cleaning, it is
beneficial to periodically aspirate a dilute surfactant solution, such as 0.1% Triton X100, for
several minutes to keep the system clean.
The surfactant solution will encourage constant drainage, which is required for obtaining
optimum burner system performance.
When using the AAnalyst nebulizer, the impact bead may have to be replaced. Also, to avoid
damage to the impact bead, the bead should be removed when cleaning the capillary holder
assembly. Steps for removing and replacing the bead are included in this instruction document.
Cleaning the nebulizer
1. After you have taken the nebulizer apart, clean the components as follows:
9-42