Waters APGC, Operator'S Manual Supplement, Page: 33 / 78

Preparing the mass spectrometer for operation with the APGC 2-9
Installing the APGC ion chamber on the mass spectrometer’s ion
block
Required materials
• Chemical-resistant, powder-free gloves
• Combined, 2.5-mm Allen wrench and cone extraction tool
• Dentist’s mirror
Requirement:
During APGC operation with the Xevo TQD or SQ Detector 2
mass spectrometer, you must use the reduced-aperture, 0.36-mm, sample cone
supplied with the APGC, to avoid problems associated with unstable signal
intensity.
To install the APGC ion chamber:
1. Select the correct sample cone for the instrument you intend to use with
the APGC:
•
For Xevo TQD or SQ Detector 2 instruments, use the 0.36-mm
sample cone provided with the APGC. The cone is labelled “0.36mm”
on its base and side wall.
• For all other instruments, use the sample cone that you retained in
the previous procedure ( page 2-8 , step 8 )
2. Ensure that the O-ring is in position on the sample cone.
Warning:
To avoid personal contamination with biologically
hazardous, toxic, or corrosive materials, and to avoid
spreading contamination to uncontaminated surfaces, wear
clean, chemical-resistant, powder-free gloves when installing
the ion chamber.
Warning:
To avoid burn injuries, take great care while
working with the source components, which can be hot.