- Poor negative ion response on Xevo TQ-S mass spectrometer
- Positive ion response unchanged
- Mobile phases and column were replaced as part of troubleshooting
- Xevo TQ-S
Dirty ion optics
FIX or WORKAROUND
Clean ion optics (ion block and StepWave).
Click here for the Xevo TQ-S Operator's Guide (page 121).
eluent, XEVOTQS, XEVOTQSIVD, XEVTQSMIVD