What are the measure­ment principles of MS?

1. BASIC MASS SPECTROMETRY

Magnetic field Sector type

Ions travel in a circular orbit within a magnet but the radius of the orbit is different depending on the ion mass. This difference is utilized to separate various masses.

Magnetic Sector Mass Spectrometer
Quadrupole type

RF and DC voltages are overlapped and applied to 4 rods. While ions traveling between the rods oscillate, the oscillating orbit is different depending on the mass. This difference is utilized to separate various masses.
Overview of Quadrupole Mass Analyzer
Structure of Quadrupole Mass Analyzer
Voltages Applied to QP Rods
Mass Selection with QP Mass Analyzer
Time-of-Flight type
The time required to fly a fixed distance depends on the mass and is utilized to separate various masses.
Time-of-Flight Mass Analyzer

The time required to fly a fixed distance depends on the mass and is utilized to separate various masses.

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