4 Maintenance Procedures
146 January 11, 2016, 715004599 Rev. B
Replacing the ESI probe tip and gasket
Maintaining the ESI probe involves replacing the following components of the
probe when required:
If the ESI probe tip is damaged or blocked, follow the procedure “Replacing the
probe tip and gasket”, on page 146.
If replacing the ESI probe tip and gasket fails to increase sensitivity, or if a
performance issue can be traced to capillary blockage, contamination, or
damage, follow the procedure “Replacing the ESI probe capillary”, on
page 150.
Replacing the probe tip and gasket
Replace the probe tip if it becomes blocked or damaged.
Required materials
• Chemical-resistant, powder-free gloves
• New nickel gasket
• 7 mm wrench
•10mm wrench
Part number Name
700004207 ESI probe tip
700004208 Nickel gasket
700000640 PTFE liner tube
700000343 Ferrule
700000969 Conductive sleeve
700004206 Capillary
Warning: To avoid personal contamination with biohazards or toxic
materials, and to avoid spreading contamination to uncontaminated surfaces,
wear clean, chemical-resistant, powder-free gloves when working with the
probe and source components.
Warning: To avoid burn injuries, take great care while performing this
procedure; the probe and source can be hot.
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