Title: ion cyclotron resonance mass spectrometer
Long Title: IUPAC Gold Book - ion cyclotron resonance mass spectrometer
DOI: 10.1351/goldbook.I03162
Status: current

Definition
A high-frequency mass spectrometer in which the ions to be detected, with a selected value of the quotient mass/charge, absorb maximum energy through the effect of a high-frequency electric field and a constant magnetic field perpendicular to the electric field. Maximum energy is gained by the ions which satisfy the cyclotron resonance condition and as a result they are separated from ions of different mass/charge.

Related Terms
- cyclotron: https://goldbook.iupac.org/terms/view/C01509
- mass spectrometer: https://goldbook.iupac.org/terms/view/M03732
- resonance: https://goldbook.iupac.org/terms/view/R05326

Sources
- Orange Book, 2nd ed., p. 202 (https://media.iupac.org/publications/analytical_compendium/)
- PAC, 1991, 63, 1541. 'Recommendations for nomenclature and symbolism for mass spectroscopy (including an appendix of terms used in vacuum technology). (Recommendations 1991)' on page 1545 (https://doi.org/10.1351/pac199163101541)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/I03162/html
- json: https://goldbook.iupac.org/terms/view/I03162/json
- xml: https://goldbook.iupac.org/terms/view/I03162/xml

Citation: Citation: 'ion cyclotron resonance mass spectrometer' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.I03162
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Accessed: 2026-08-09T19:50:57+00:00