Electron capture dissociation in radiofrequency ion traps

摘要

A system and method that includes injecting low-energy electrons in a radiofrequency (RF) ion trap in order to dissociate positive ions by electron capture. The system includes an ion trap, a controller to provide RF that can be switched on and off rapidly, and a source of low-energy electrons that can be turned on and off synchronously with the radiofrequency on/off periods.