Waters GCT Premier - Page 21

Table of Contents xxi
Typical lock mass values ................................................................................ C-8
D External Connections .......................................................................... D-1
Safety Considerations ..................................................................................... D-2
GCT Premier system external wiring ......................................................... D-3
GCT Premier system vacuum connections ................................................ D-4
E Status Display Vacuum LED .............................................................. E-1
Vacuum LED: displays for normal instrument operation ....................... E-2
Vacuum LED: displays for instrument faults ............................................. E-5
F Performance Specifications ............................................................... F-1
Performance specifications ............................................................................ F-2
Mass range....................................................................................................... F-2
Resolution......................................................................................................... F-2
Acquisition rate................................................................................................ F-2
GC sensitivity................................................................................................... F-2
Mass accuracy.................................................................................................. F-2
Dynamic range................................................................................................. F-3
G Theory and Principles of Operation ................................................ G-1
GCT Premier functionality ............................................................................ G-2
Ionization techniques ..................................................................................... G-3
Electron Impact ionization.............................................................................. G-3
Chemical ionization......................................................................................... G-4
Negative chemical ionization .......................................................................... G-5
Field ionization ................................................................................................ G-5
Field desorption ............................................................................................... G-6