Mass spectrometry
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Last updated 9:43 AM on 11/13/25
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4 Terms
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Stages of mass spectrometry
vaporisation of sample
ionisation by electron gun
acceleration and focus by electric field
deflection by magnetic field
detection by ion counter
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What are detected?
Positive ions
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How are ions detected?
As a mass-charge ratio (m/z)
If z=1 then the m/z value is equal to relative isotopic mass
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What information does it give?
isotopes present
percentage abundance of each isotope
relative abundance of each ion
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