Purging The Infusion Pump - Waters Xevo TQ-S Operator's, Overview And Maintenance Manual

2 Preparing the Mass Spectrometer for Operation

Purging the infusion pump

Whenever you replace a solution bottle, purge the infusion pump with the
solution that you are going to use next (see the mass spectrometer's online
Help for details). Depending on the solutions used, the instrument's solvent
delivery system can require more than one purge cycle to minimize carryover.
Requirement:
solvent in the wash reservoir.
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Ensure that the end of the tubing is fully submerged in the