Waters SYNAPT G2, Operator'S, Overview And Maintenance Manual

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Instrument sources 1-5
Instrument sources
LockSpray source and ionization modes
The LockSpray source uses lock-mass correction to acquire exact mass data.
The sample is introduced into the source through a probe. A lock-spray flow,
containing a compound of known mass, flows through a separate ESI probe
(the LockSpray sprayer). An oscillating baffle allows the sprays to be analyzed
as two separate data functions. The lock-mass correction, calculated from the
lock-spray data, is then applied to the sample data set.
You can use the LockSpray source with the following ionization modes:
• ESI
• APCI
• ESCi
• nanoSpray
SYNAPT G2 MS fitted with LockSpray source