- High baseline in some MRM channels
- Normal baseline seen on others
- The baseline can be identified as chemical in origin (it disappears if the capillary voltage is set to zero)
- Xevo TQ-S
Contaminated mobile phase
FIX or WORKAROUND
Prepare new mobile phase using clean glassware.
id99955, eluent, XEVOTQS, XEVOTQSIVD, XEVTQSMIVD