Analyzer scan modes for hybrid mass spectrometers
โ Scribed by Gary L. Glish; Scott A. McLuckey
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 976 KB
- Volume
- 24
- Category
- Article
- ISSN
- 1076-5174
No coin nor oath required. For personal study only.
โฆ Synopsis
The scan modes that can be used to obtain daughter ion, parent ion, and constant neutral-loss spectra on hybrid mass spectrometers are derived for instruments with a quadrupole combined with a magnetic and/or electric sector. All combinations of sector/quadrupole and quadrupolelsector instruments are discussed. The advantages or lack thereof of the various scans are presented with respect to operation, resolution and potential artifacts.
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This paper describes a new scanning mode for quadrupole mass spectrometers. In accordance with the theoretical equations of ion motion in a quadrupolar field, an alternative method of scanning is possible varying only the RF applied to the rods of the quadrupole, keeping constant the amplitude of th
Charge exchange reactions within a triple quadrupole mass spectrometer characterize doubly charged ions formed in the ion source. Two methods have been developed for identifying the singly charged ions formed from doubly charged ions by charge exchange in the collision quadrupole. The 6rst is based