External source Fourier transform ion cyclotron resonance mass spectrometry by using a split-pair magnet
| Autor: | Mary Louise Mandich, A.M. DeSantolo, W.D. Reents |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Chemistry
Analytical chemistry Condensed Matter Physics Mass spectrometry Fourier transform ion cyclotron resonance Ion source Secondary ion mass spectrometry Ion beam deposition Physics::Plasma Physics Selected ion monitoring Ion trap Physical and Theoretical Chemistry Atomic physics Instrumentation Spectroscopy Ion cyclotron resonance |
| Zdroj: | International Journal of Mass Spectrometry. 177:63-81 |
| ISSN: | 1387-3806 |
| DOI: | 10.1016/s1387-3806(98)14010-1 |
| Popis: | A new instrument has been designed, built, and tested for high performance Fourier transform ion cyclotron resonance mass spectrometry (FTICRMS) that allows operation at gas pressures of up to ∼20 Torr in the ion source and up to ∼0.01 Torr in the ion trap. FTICRMS performance is not compromised at these pressures due to an external, high throughput ion source and pulsed gas introduction/rapid gas evacuation of the vacuum chamber at the trapped ion cell. This system is the first to retain ions at 0.01-Torr gas pressure in the ion trap with high sensitivity. This performance is achieved while obtaining high mass resolution and ppm mass accuracies. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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