Fourier transform-ion cyclotron resonance-mass spectrometer: Difference between revisions
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== [[Orange Book]] Entry == | == [[Orange Book]] Entry == | ||
A high-frequency mass spectrometer in which the cyclotron motion of ions, having different mass/charge | A high-frequency [[mass spectrometer]] in which the [[cyclotron motion]] of ions, having different [[mass/charge ratio]]s, in a constant magnetic field, is excited essentially simultaneously and coherently by a pulse of a radio-frequency electric field applied perpendicularly to the magnetic field. The excited cyclotron motion of the ions is subsequently detected on [[receiver plate]]s as a time domain signal that contains all the [[Cyclotron Frequency|cyclotron frequencies]] excited. Fourier transformation of the time domain signal results in the frequency domain FT-ICR signal which, on the basis of the inverse proportionality between frequency and mass/charge ratio, can be converted to a [[mass spectrum]]. See also [[ion cyclotron resonance (ICR) mass spectrometer]]. | ||
== External Links == | == External Links == | ||
[http://www.rsc.org/CFmuscat/intermediate_abstract.cfm?FURL=/ej/AN/2005/b403880k.PDF Principles of Fourier transform ion cyclotron resonance mass spectrometry and its application in structural biology] | [http://www.rsc.org/CFmuscat/intermediate_abstract.cfm?FURL=/ej/AN/2005/b403880k.PDF Principles of Fourier transform ion cyclotron resonance mass spectrometry and its application in structural biology] | ||
[[Category:m/z Separation]] | |||
Revision as of 13:39, 22 January 2005
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Orange Book Entry
A high-frequency mass spectrometer in which the cyclotron motion of ions, having different mass/charge ratios, in a constant magnetic field, is excited essentially simultaneously and coherently by a pulse of a radio-frequency electric field applied perpendicularly to the magnetic field. The excited cyclotron motion of the ions is subsequently detected on receiver plates as a time domain signal that contains all the cyclotron frequencies excited. Fourier transformation of the time domain signal results in the frequency domain FT-ICR signal which, on the basis of the inverse proportionality between frequency and mass/charge ratio, can be converted to a mass spectrum. See also ion cyclotron resonance (ICR) mass spectrometer.
