Waters SYNAPT G2, Operator'S, Overview And Maintenance Manual

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Cleaning the APCI probe tip 5-67
19. Using the combined 2.5-mm Allen wrench and cone extraction tool, fit
and tighten the 3 probe end cover retaining screws.
20. Fit the metal gasket to the probe tip.
21. Fit the probe tip over the capillary, and screw the tip onto the probe
assembly.
22. Using the 10-mm wrench, tighten the probe tip.
23. Using the nebulizer adjuster knob, adjust the capillary so that it
protrudes by approximately 0.5 mm from the end of the probe tip.
24. Replace the combined 2.5-mm Allen wrench and cone extraction tool in
its storage location on the source adaptor housing.
25. Fit the ESI probe to the source (see page 3-2 ).
Cleaning the APCI probe tip
Clean the APCI probe tip when a buffer buildup is detected on the probe tip or
when the signal intensity weakens. See the mass spectrometer’s online Help
for further details.
To clean the APCI probe tip
1. On the Instrument Console system tree, click SYNAPT G2 > Manual
optimization.
2. On the manual optimization page, click to stop the liquid flow.
3. Click Gas to start the desolvation gas flow.
4. Set Desolvation Gas to 650 L/hr.
5. Set APCI Probe Temp to 650 °C.
6. Click Operate .
Caution:
To avoid gas leakage, fully tighten the probe tip.