Thermo Finnigan LTQ - Page 12

Contents
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ii__________________________ Finnigan LTQ Hardware Manual _______________________
1.5 Data Types............................................................................................................................... 1-18
Profile Data Type .............................................................................................................. 1-18
Centroid Data Type ........................................................................................................... 1-18
1.6 Experiment Types.................................................................................................................... 1-19
General MS or MSn Experiments..................................................................................... 1-19
Data-Dependent Experiments........................................................................................... 1-20
Ion Mapping Experiments................................................................................................. 1-21
Ion Tree Experiments........................................................................................................ 1-22
Functional Description ............................................................................................................. 2-1
2.1 Autosampler............................................................................................................................... 2-3
2.2 Liquid Chromatograph .............................................................................................................. 2-4
2.3 Syringe Pump ............................................................................................................................ 2-5
2.4 Divert/Inject Valve..................................................................................................................... 2-6
2.5 MS Detector............................................................................................................................... 2-7
Controls and Indicators....................................................................................................... 2-7
API Source........................................................................................................................ 2-10
Ion Optics.......................................................................................................................... 2-15
Mass Analyzer...................................................................................................................2-16
Ion Detection Systems ...................................................................................................... 2-21
Vacuum System and Inlet Gasses Hardware..................................................................... 2-23
Cooling Fans..................................................................................................................... 2-31
Electronic Assemblies....................................................................................................... 2-32
2.6 Data System............................................................................................................................. 2-39
Computer Hardware.......................................................................................................... 2-39
Data System / MS Detector / LC Interface....................................................................... 2-40
Data System / Local Area Network Interface................................................................... 2-41
Printer................................................................................................................................ 2-42
Daily Operation ......................................................................................................................... 3-1
3.1 Things to Do Before Operating the LTQ................................................................................... 3-2
Checking the Helium and Nitrogen Supplies...................................................................... 3-2
Checking the ESI Fused-Silica Sample Tube for Elongation............................................. 3-3
Checking the System Vacuum Levels................................................................................. 3-4
Removing the Septum, Reinstalling the Ion Sweep Cone, and Rechecking the Vacuum
Levels ........................................................................................................................... 3-5
Checking the Disk Space .................................................................................................... 3-5