Waters Xevo TQ MS, Operator And Maintenance Manual, Page: 27 / 184

MS/MS operating modes 1-11
MS/MS operating modes
Note:
In SIR and MRM modes, neither quadrupole is scanned, so no spectrum
(intensity versus mass) is produced.
The following table shows the MS/MS operating modes.
MS/MS operating modes
Operating mode MS1 Collision cell MS2
Product
(daughter) ion
spectrum
Static (at
precursor mass)
Pass all masses Scanning
Precursor
(parent) ion
spectrum
Scanning Static (at product
mass)
MRM Static (at
precursor mass)
Static (at product
mass)
Constant neutral
loss spectrum
Scanning
(synchronized
with MS2)
Scanning
(synchronized
with MS1)
ScanWave
daughter scan
Static (at
precursor mass)
ScanWave
enabled
Scanning
(synchronized
with collision
cell)