Cleaning The Ion Block Components - Waters Xevo TQ-S Operator's, Overview And Maintenance Manual

Cleaning the ion block components

Required materials
• Chemical-resistant, powder-free gloves.
• Appropriately sized glass vessels in which to completely immerse
components when cleaning. Use only glassware not previously cleaned
with surfactants.
• HPLC-grade (or better) methanol.
• HPLC-grade (or better) water.
• Formic acid.
• Ultrasonic bath.
• Source of oil-free, inert gas (for example, nitrogen) for drying (air-drying
optional).
• Wash bottle containing HPLC-grade (or better) 1:1 methanol/water.
• Large beaker.
To clean the ion block components:
1. Immerse the ion block and isolation valve in separate glass vessels
containing 1:1 methanol/water.
If the components are obviously contaminated, use 45:45:10
Tip:
methanol/water/formic acid.
2. Place the vessels in the ultrasonic bath for 30 minutes.
4-48 Maintenance Procedures
The ion block components can be contaminated with
Warning:
biohazardous and/or toxic materials. Always wear
chemical-resistant, powder-free gloves while performing this
procedure.
Formic acid is extremely corrosive and toxic. Work with
Warning:
extreme care, use a fume hood and suitable protective equipment.