Title: collision-induced dissociation
Long Title: IUPAC Gold Book - collision-induced dissociation
DOI: 10.1351/goldbook.C01167
Status: current

Definition
An ion/neutral species process wherein the projectile ion is dissociated as a result of interaction with a target neutral species. This is brought about by conversion of part of the translational energy of the ion to internal energy in the ion during the collision.

Related Term
- internal energy: https://goldbook.iupac.org//terms/view/I03103

Source
- 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 1555 (https://doi.org/10.1351/pac199163101541)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/C01167/html
- json: https://goldbook.iupac.org/terms/view/C01167/json
- xml: https://goldbook.iupac.org/terms/view/C01167/xml

Citation: Citation: 'collision-induced dissociation' 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.C01167
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Accessed: 2026-04-19T02:16:02+00:00