Quadrupole Mass Analyzers
Course Details
Premier
In quadrupole mass analyzing devices, electric fields are used to separate ions according to their mass-to-charge ratio (m/z) as they pass along the central axis of four parallel equidistant rods (or poles) that have fixed (DC) and alternating (RF) voltages applied to them.
Topics include:
- Quadrupole rods
- Quadrupole voltages
- Quadrupole electrostatic fields
- Quadrupole ion trajectories
- Equations of motion
- Mass gain and offset
- Resolution and sensitivity
- Data acquisition modes
- Scan vs. selected ion modes
- RF only ion bridges
- Mass accuracy
- Quadrupole performance limitations
- Scanning speeds
- Tandem quadrupole mass analyzers
- Detection system
