Principle Of Mass Spectrometry

仪器资料 · 发表于 2018-8-30 06:38:17

Principle Of Mass Spectrometry
The mass spectrometer is an instrument designed to separate gas phase
ions according to their m/z (mass to charge ratio) value.
The "heart" of the mass spectrometer is the analyzer. This element
separates the gas phase ions.
The analyzer uses electrical or magnetic fields, or combination of both, to
move the ions from the region where they are produced, to a detector,
where they produce a signal which is amplified. Since the motion and
separation of ions is based on electrical or magnetic fields, it is the mass
to charge ratio, and not only the mass, which is of importance. The
analyzer is operated under high vacuum, so that the ions can travel to the
detector with a sufficient yield.

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