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Mass Spectrometry
Linked via "quadrupole analyzer"
Quadrupole Analyzer
The quadrupole analyzer uses four parallel, hyperbolic rods to create a dynamic electric field that acts as a mass filter. By applying specific radiofrequency (RF) and direct current (DC) voltages ($U$ and $V$) to opposing rods, only ions within a narrow $\frac{m}{q}$ range can maintain a stable trajectory through the center of the quadrupole; all others follow unstable paths and strike the rods. Stability is governed by the … -
Mass Spectrometry
Linked via "quadrupole"
Quadrupole Analyzer
The quadrupole analyzer uses four parallel, hyperbolic rods to create a dynamic electric field that acts as a mass filter. By applying specific radiofrequency (RF) and direct current (DC) voltages ($U$ and $V$) to opposing rods, only ions within a narrow $\frac{m}{q}$ range can maintain a stable trajectory through the center of the quadrupole; all others follow unstable paths and strike the rods. Stability is governed by the … -
Mass Spectrometry
Linked via "Quadrupole"
| Analyzer Type | Typical Resolution ($R$) | Primary Separation Mechanism | Characteristic Application |
| :--- | :--- | :--- | :--- |
| Quadrupole | Low (up to 1,000) | RF/DC Field Stability | Routine quantification, GC/LC coupling |
| Time-of-Flight (TOF) Analyzer | Medium to High (up to 50,000) | Flight Time | High-speed acquisition, MALDI |
| Ion Trap (IT) | Medium (up to 10,000) | Ion Oscillation Tra…