4.2. Measurements
            4.2.3. Gas analysis
                4.2.3.1. Generic methods
4.2.3.1.2. Mass spectormetry

Mass spectrometry

Principle

Amount of deflection of charged ions in magnetic field depends on their mass/charge ratio.

Setup

Use

Measures fractional composition of the gas mixture (not partial pressure)

Fragmentation

Advantages

Disadvantages

Quadrupole mass spectrometer

Use of 4 electrically charge rods instead of magnetic field.

Keywords:  Mass spectrometry
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Created20050602
Reviewed20050602


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