Lockspray Source And Ionization Modes - Waters Xevo G2-XS QTof Overview And Maintenance Manual

LockSpray source and ionization modes

LockSpray source and ionization modes

The LockSpray source uses lock-mass correction to acquire exact mass data.
The analyte is introduced into the source through a probe. A reference flow
containing a compound of known mass flows through a separate ESI probe. An
oscillating baffle allows the sprays to be analyzed as two separate data
functions. The lock-mass correction calculated from the reference data is then
applied to the analyte data set.
You can use the LockSpray source with the ESI, APCI, and ESCi ionization
modes (see Chapter 3), and with the ASAP ionization mode (see the
Atmospheric Solids Analysis Probe Operator's Guide Supplement, part
number 715002034).
Xevo G2-XS QTof fitted with LockSpray source:
Solvent tray
LockSpray source
April 2, 2015, 715004496 Rev. B 31