The Library
A theoretical investigation of the kinetic energy of ions trapped in a radio-frequency hexapole ion trap
Tools
Tools
Tools
UNSPECIFIED (2002) A theoretical investigation of the kinetic energy of ions trapped in a radio-frequency hexapole ion trap. EUROPEAN JOURNAL OF MASS SPECTROMETRY, 8 (2). pp. 181-189.
Research output not available from this repository, contact author.Abstract
The kinetic energy dependence of ions trapped in a radio-frequency (RF) hexapole ion trap has been calculated as a function of space charge, mean free path, mass, RF potential and charge. The average kinetic energy of the ions was found to increase with increasing space charge, mean free path and the ion charge state. For a trapped ion in a given coulombic field, the mass of the ion and the amplitude of the applied RF potential did not affect the average kinetic energy. The consequences for multipole-storage-assisted dissociation (MSAD), in which ions are accumulated for prolonged periods of time in the multipole ion trap of an electrospray ion source, are discussed. As a result of radial stratification inside the ion trap, MSAD can lead to the preferential excitation of ions with larger m/z values. Such discrimination would have negative consequences for the detection of labile non-covalent adducts, which are normally detected at higher m/z values than their constituent species.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||
| Journal or Publication Title: | EUROPEAN JOURNAL OF MASS SPECTROMETRY | ||||
| Publisher: | IM PUBLICATIONS | ||||
| ISSN: | 1469-0667 | ||||
| Official Date: | 2002 | ||||
| Dates: |
|
||||
| Volume: | 8 | ||||
| Number: | 2 | ||||
| Number of Pages: | 9 | ||||
| Page Range: | pp. 181-189 | ||||
| Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
Request changes or add full text files to a record
Repository staff actions (login required)
 |
View Item |
