Thermo Scientific TSQ 8000 Evo Hardware Manual page 114

2
Troubleshooting
Investigating Contamination Issues
Table 11. Possible Remedies for Solvent Contamination
You may have a leak that is allowing solvent vapors to get into the TSQ 8000 Evo instrument. Use a spray gas, such as Tetrafluoethane, to
check for leaks and then fix them. See
Optimize the GC method to separate the solvent peak from the area of interest in the chromatogram. The following compounds may have
been introduced during sample injection, a cleaning or autosampler rinsing solvent. The following commonly used solvents have ions at
the listed m/z:
• Acetone (m/z 43, 58, 59)
• Hexane (m/z 41, 43, 56, 57, 58, 85, 86)
• Methylene chloride (m/z 84/83)
• Toluene (m/z 91, 92)
• Trichloroethane (m/z 151, 153)
• Xylene (m/z 105, 106)
88 TSQ 8000 Evo Hardware Manual
Investigating Vacuum Issues for details.
Thermo Scientific