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LC-MStechnical servicetroubleshooting
Vacuum Issues in LC-MS Systems: Causes and Solutions
Vacuum drops, pump failures and ion source effects in LC-MS and LC-MS/MS — a technical service perspective.
Stella Lab Tech1 min read
The vacuum system is the foundation of LC-MS performance. When a vacuum drop is detected, analyses should be stopped and root cause analysis performed.
Common Symptoms
- Signal loss in mass spectra
- Instability in tune files
- Increased pump noise or overheating
Inspection Steps
- Check vacuum line and fitting seals
- Test roughing and turbo pump performance
- Assess contamination in the ion source region
Professional Intervention
Vacuum components require precise calibration. Using OEM spare parts and procedures extends instrument lifetime.
Our LC-MS technical service team provides on-site diagnosis and repair.