146 5975 Series MSD Operation Manual for MassHunter
5 General Maintenance
To Clean the EI Source
Materials needed
• Abrasive paper (5061-5896)
• Alumina abrasive powder (8660-0791)
• Aluminum foil, clean
• Cloths, clean (05980-60051)
• Cotton swabs (5080-5400)
• Glass beakers, 500 mL
• Gloves, clean, lint-free
• Large (8650-0030)
• Small (8650-0029)
• Solvents
• Acetone, reagent grade
• Methanol, reagent grade
• Methylene chloride, reagent grade
• Ultrasonic bath
Preparation
1 Disassemble the ion source. See “To Disassemble the EI Source” on
page 144.
2 Collect the following parts to be cleaned for an EI source:
• Repeller
• Interface socket
• Source body
• Drawout plate
• Drawout cylinder
• Ion focus lens
• Entrance lens
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