Lifetimes of metastable molecular doubly charged ions
β Scribed by Thomas A. Field; John H.D. Eland
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 574 KB
- Volume
- 211
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
Methods for the determination of molecular dication decay constants using the charge separation mass spectrometry technique have been developed. Mean lifetimes have been determined for CO$+ (900+$$?nns), N202+ (450%ns) and CO'+ (6OOZE ns). In other cases metastable dication decay must be described by more than one mean lifetime.
π SIMILAR VOLUMES
The mass spectra of biological molecules, whose molecular mass exceeds 10 kDa, invariably contain multiply charged ions. For example, a survey scan of a small protein will produce singly, doubly and triply protonated molecules, the intensity of the doubly charged species often being greater than tha