Waters Quattro Premier XE, Operator'S Manual, Page: 20 / 86

2-2 The Combined APPI/APCI Source
Combined APPI/APCI Source
The Combined APPI/APCI Source comprises an APCI probe and the APPI
lamp drive assembly.
APCI probe
The APCI probe is the standard probe used by the Quattro Premier XE for
APCI operation.
See also:
The Waters Quattro Premier XE Mass Spectrometer Operator’s
Guide .
APPI lamp drive assembly
The APPI lamp drive assembly comprises:
• A UV lamp.
• A repeller electrode.
• A lamp holder.
• A mounting shaft with indexing scales.
• An aluminum enclosure, housing drive electronics.
• An APPI source enclosure side plate.
See also:
Figure “APPI lamp drive assembly and side plate” on page 2-3 and
Figure “APPI lamp drive assembly showing the UV lamp and repeller
electrode” on page 2-4 .
The APPI lamp drive assembly mounts onto the APPI source enclosure side
plate, which in turn mounts onto the side of the instrument’s source enclosure.
See also:
Figure “APPI lamp drive assembly fitted to the source enclosure” on
page 2-4 .