The fragmentation mechanism of simvastatin and lovastatin was investigated using both triple quadrupole and ion trap mass spectrometers. The elimination of the ester side-chain followed by dehydration and dissociation of the lactone moiety were observed as the main fragmentation pathways for both co
Identification and fragmentation of hydrolyzed aluminum species by electrospray ionization tandem mass spectrometry
✍ Scribed by Arja Sarpola; Vesa Hietapelto; Jorma Jalonen; Jukka Jokela; Risto S. Laitinen; Jaakko Rämö
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 279 KB
- Volume
- 39
- Category
- Article
- ISSN
- 1076-5174
- DOI
- 10.1002/jms.722
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Earlier characterization of some hydrolysis products of AlCl~3~·6H~2~O was confirmed by electrospray ionization tandem mass spectrometry with increasing collision energy of projectile ions. At lower collision energies, the aqua ligands were stripped off. At higher energies, two hydroxo groups formed a bridging oxo group with loss of one water molecule. Aluminum complexes could also capture aqua ligands in the collision chamber so long as the parent ion did not fragment, and the fragment ion spectra broadened toward higher m/z values. The chloro ligands were eliminated as hydrochloric acid. The aluminum cores remained highly intact. Copyright © 2004 John Wiley & Sons, Ltd.
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