The 7250 Accurate-Mass Quadrupole Time-Of-Flight Gc/Ms System - Agilent Technologies 7250 Troubleshooting And Maintenance Manual

1 Introduction
The 7250 Accurate-Mass Quadrupole
Time-of-Flight GC/MS System
The 7250 Accurate-Mass Quadrupole Time-of-Flight (Q-TOF) GC/MS System is a
standalone capillary GC detector for use with Agilent 8890 and 7890 Series gas
chromatographs. The 7250 Q-TOF features:
•
•
•
•
•
•
•
•
•
•
Physical description
The 7250 Q-TOF GC/MS is approximately 53.5 cm high, 69 cm wide, and 92 cm
deep. The flight tube extends 136 cm up over the top of the instrument.
The turbo pump mainframe weighs 159 kg. The weight of the attached foreline
(rotary) pump is 25 kg for the DS202 rotary vane pump model, and 45 kg for the
IDP model.
The basic components of the instrument are the:
•
•
•
7250 Accurate-Mass Q-TOF Troubleshooting and Maintenance Manual
Three turbomolecular vacuum pumps
Foreline pump
• Rotary vane pump
• Optional isolated dry pump (IDP)
Independently MS-heated LE-EI ion source
Independently MS-heated hyperbolic quadrupole mass filter, which can be
heated to high temperatures, minimizing the contamination typical with low
temperature analyses
Single hexapole collision cell
Ion-focusing slicer
Vacuum-insulated flight tube with dual-stage ion mirror
Fast electronics, allowing fast sampling rates
Analog-to-digital detector
Independently GC-heated GC/MS interface
Frame/cover assemblies
Vacuum system
GC/MS interface
11