Gate Lens - Thermo Scientific LTQ Series Hardware Manual

5
Maintenance
MP0 and MP1 Ion Guides Maintenance
Cleaning the MP0 and MP1 Ion Guides, Lens L1, and the Split Gate Lens
108 LTQ Series Hardware Manual
CAUTION Do not drop or bump multipoles MP0 and MP1 against any surface.
 To clean the MP0 and MP1 ion guides
IMPORTANT Always use LC/MS-grade methanol and LC/MS-grade water (see
Table 7 on page 55).
1. Using a magnification device, inspect the components for any lint, particulates, and
sample buildup or coatings.
2. Sonicate the components in a 1% solution of Liquinox in water for 10 minutes.
3. Soak chamois-tipped swabs in a 1% solution of Liquinox in water, and then clean the
components.
4. Rinse the components thoroughly with water.
5. Sonicate the components in water for 10 minutes.
6. Sonicate the components in methanol for 10 minutes.
7. Soak chamois-tipped swabs in methanol, and then clean the components.
8. Rinse the components with methanol.
9. Dry the components with nitrogen gas to make sure that all the solvent evaporates.
10. Using a magnification device, inspect the components for any residual lint or particulates.
Note Inspect the inside surfaces and edges to confirm that no lint or particulates are
present. Use tweezers or a similar tool to remove the lint or particulate.
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