Ion source
From Free net encyclopedia
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Mass spectrometry
In mass spectrometry, an ion source is a piece of equipment used to ionize analyte molecules and, if necessary, free them from the solid or liquid phase. Once the analyte ions are free to move electric fields will direct them into the mass analyzer.
There are several types of ion sources:
- electron ionization (EI)
- chemical ionization (CI)
- fast atom bombardment (FAB)
- field desorption (FD)
- Matrix-assisted laser desorption/ionization (MALDI)
- electrospray ionization (ESI)
- thermospray ionization (TS)
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In particle accelerators
In particle accelerators an ion source creates a particle beam at the beginning of the machine, the Source. In most cases they are rebuildable, or reused.
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