Warning:
To avoid spreading contamination, dispose of all waste materials according to
local environmental regulations.
13. If the cover seal or cone gas O-ring shows signs of deterioration or damage, dispose of it in
accordance with local environmental regulations.
4.14.3 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
• Oil free, nitrogen gas for drying (air-drying optional).
• Wash bottle containing HPLC-grade (or better) 1:1 methanol/water
• Large beaker
To clean the ion block components:
Warning:
To avoid personal contamination with biohazards, toxic materials, and corrosive
materials, wear chemical-resistant gloves when performing this procedure.
Warning:
To avoid injury when working with formic acid, which is extremely corrosive and toxic,
take extreme care handling it, and use a fume hood and suitable protective equipment.
1.
Immerse the ion block and isolation valve in separate glass vessels containing 1:1
methanol/water.
Tip:
If the components are obviously contaminated, use 45:45:10 methanol/water/formic
acid.
2.
Place the vessels in the ultrasonic bath for 30 minutes.
3.
If you used formic acid in the cleaning solution, do as follows:
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