Waters Xevo TQD, Operator'S, Overview And Maintenance Manual, Page: 134 / 250

4-58 Maintenance Procedures
• Source of oil-free, inert gas (for example, nitrogen) for drying (air-drying
optional).
• HPLC-grade (or better) 1:1 methanol/water.
• Wash-bottle containing HPLC-grade (or better) 1:1 methanol/water.
• Large beaker.
To clean the ion guide assembly:
1. Bend a PEEK or PTFE tube into a hook shape.
2. Insert one end of the hook into one of the holes in the ion guide’s rear
circuit board carrier.
Warning:
The ion guide PCB assemblies can be contaminated with
biohazardous and/or toxic materials. Always wear
chemical-resistant, powder-free gloves while performing this
procedure.
Caution:
Use of acetone, chlorinated solvents, or acid as solvents
when cleaning the ion guide assembly damages the assembly. Use
only methanol and water.