6
Maintenance
Maintaining the Ion Source Interface Assembly
Thermo Scientific TSQ Series Hardware Manual 87
Cleaning the S-Lens and Exit Lens (TSQ Vantage)
To clean the S-lens and exit lens
1. Inspect the S-lens and exit lens under magnification for any lint, particulates, and sample
buildup or coatings.
2. Sonicate the S-lens and exit lens for 10–15 min. in a 50:50 methanol/water solution or a
1% solution of Liquinox in water. If a sonicator is not available, do the following:
a. To clean the exit lens, use a soft toothbrush with a 1% solution of Liquinox in water.
b. To clean the S-lens, use a chamois-tip swab with a 1% solution of Liquinox in water,
and use a 6000 grit MICRO-MESH polishing swab (P/N 00301-01911) to clean the
areas that are inaccessible to the chamois-tip swab.
3. For the exit lens, clean the bore by using the 6000 grit MICRO-MESH polishing swab.
4. Rinse the S-lens and exit lens thoroughly with water.
5. Rinse the S-lens and exit lens with fresh methanol.
6. Air dry the S-lens and exit lens or blow dry them with nitrogen gas. Ensure that all solvent
has evaporated from the components before reassembly.
7. Inspect the S-lens and exit lens under magnification for any lint or particulates.
Removing the Tube Lens and Skimmer (TSQ Quantum Access, TSQ Quantum Access
MAX, or TSQ Quantum Ultra)
You must remove the tube lens and skimmer from the ion source interface assembly before
they can be cleaned.
To remove the tube lens and skimmer from the ion source interface assembly
1. Wearing clean, lint- and powder- free gloves, reach behind the skimmer with your fingers
and gently press the skimmer out of the contact ring support. If necessary, loosen the set
screws. See Figure 49.
2. Place the skimmer on a clean, lint-free surface.
3. Push the tube lens, from the back, out of the contact ring support.
4. Place the tube lens on a clean, lint-free surface.
Note Wear clean gloves when you handle the S-lens and exit lens.
CAUTION Do not clean the S-lens or exit lens with detergents, acidic or caustic
substances, or abrasives.
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