Components of Mass Spectrometry
The general layout of a mass spectrometer consists of the following elements; Sample introduction and separation system, Ion source, Mass analyser, Ion detection system, Data processing.
An electron multiplier
is used to detect the presence of ion signals emerging from the mass
analyser of a mass spectrometer. It is essentially the ‘eyes’ of the
The task of the electron multiplier is to detect every ion of the selected mass passed by the mass filter. How efficiently the electron multiplier carries out this task represents a potentially limiting factor on the overall system sensitivity. Consequently the performance of the electron multiplier can have a major influence on the overall performance of the mass spectrometer.