GC-MS Vacuum Systems

High vacuum is essential for GC-MS to function. This module comprehensively covers the pumps used to achieve the required vacuum in a GC-MS system. Practical information is provided on the operating principles of each pump type, as well as troubleshooting and maintenance tips.

Topics include:

• Reasons for vacuum in MS systems
• The foreline pump
• Foreline pumps - gas ballasting
• Foreline pumps - exhaust filters
• Foreline pumps - rotary pump oil
• High vacuum pumps
• Leaks
• Venting the MSD