What does the question mark (?) mean in a centroided MassLynx mass spectrum from a QTof? - WKB4801
Article number: 4801
ENVIRONMENT
- MassLynx 4.1
- QTof
ANSWER
The "?" denotes that the peak is too intense and it is saturated—i.e., the detector ion current is so high that it does not have time to recover before the next ion impact.
It is a sign that the concentration of the solution should be decreased. This will extend the life of the detector and give better mass spectral results.
ADDITIONAL INFORMATION
id4801, MLYNX, MLYNXV41, SUPMM