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Maintenance
204
Cleaning the Sample Introduction System
See the following table for the recommended cleaning procedures for the sample
introduction system.
Table 5-1.
Daily cleaning
Torch
Injector
Spray Chamber
O-Rings
GemTips for Cross-
Flow Nebulizer
GemTip or GemCone
Nebulizer/End Cap
Assembly
Concentric Glass
(MEINHARD)
Nebulizer
Mira Mist Nebulizer
Recommended Cleaning Procedure
After analyzing aqueous solutions, flush with
deionized water, or 2% nitric acid, followed by
deionized water. After analyzing organic solutions,
flush using a clean solvent.
Soak in 5-20% nitric acid or aqua regia; use an
ultrasonic cleaner if available. For more detailed
information, see Cleaning the Torch later in this
chapter.
Clean with soap and water, rinse thoroughly.
Clean with soap and water, rinse thoroughly; or use a
2% solution of nitric acid.
Clean with soap and water; rinse thoroughly.
Do not use an ultrasonic cleaner. Do not use a cleaning
wire. See Concentric Glass Nebulizer later in this
chapter.
For the longest life and best performance, wash your
nebulizer by simply running water as a sample for 10
minutes at the end of the day before shutting down the
plasma. Any other form of washing is usually
unnecessary. Please DO NOT wash your nebulizer in
acid or solvents to 'prevent salt build up'. DO NOT use
surfactants as they will destroy the surface tension at
the tip and performance. The tip is very easily
damaged and should NEVER be touched with
fingers, tissues, or anything else.
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Troubleshooting
