How to clean the Impactor Pin for Unispray maintenance? - WKB83167

OBJECTIVE or GOAL

To remove the precipitation occurred on Impactor pin when using the Unispray

ENVIRONMENT

• Xevo TQ-S
• Xevo TQ-S cronos
• Xevo TQ-S micro
• Xevo TQ-XS

PROCEDURE

1. Stop the LC flow.
2. Put the MS on standby. Wait about 3 minutes to allow the desolvation gas flow to cool the probe and source.
3. Turn off N2 gas (and argon gas for tandem quads).
4. The source can be hot. To avoid burn injuries, take great care while working with the source enclosure open.
5. Remove the Impactor pin from the connection.
6. Wipe the Impactor pin vertically with methanol.
7. Wipe the Impactor pin vertically with water.
8. Wipe the Impactor pin vertically with methanol.
9. Lapping film may be used to remove the burn on the impactor pin.
10. Blow dry with a gas such as nitrogen and attach back to the connection.

ADDITIONAL INFORMATION

Hint & Tips