Mass selective ejection by axial resonant excitation from a linear ion trap
| Autor: | Takashi Baba, Yuichiro Hashimoto, Hideki Hasegawa, Izumi Waki |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Horizontal scan rate
Dendrimers Spectrometry Mass Electrospray Ionization Binding Sites Silver Field (physics) Chemistry Analytical chemistry Biocompatible Materials Mass spectrometry Ion Hydrazines Tandem Mass Spectrometry Structural Biology Quadrupole Polyamines Ion trap Atomic physics Quadrupole ion trap Spectroscopy Excitation |
| Zdroj: | Journal of the American Society for Mass Spectrometry. 17:685-690 |
| ISSN: | 1044-0305 |
| DOI: | 10.1016/j.jasms.2006.01.011 |
| Popis: | We describe a new mass selective ejection method from a linear ion trap, which we call axial resonant excitation (AREX). A set of vane lenses are inserted between each quadrupole rod to produce electrostatic potential that is approximately harmonic along the central axis of the quadrupole field. After ions with specific m/z are resonantly oscillated in the axial direction, the ions are mass selectively ejected in the axial direction. At a high scan rate of 11 Th/ms, AREX achieved a high ejection efficiency of more than 60%, which is more than three times higher than a conventional mass selective axial ejection method from a linear trap using fringing field. |
| Databáze: | OpenAIRE |
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