✦ LIBER ✦

Characterization of sphingosine long-chain bases by fast atom bombardment and high-energy collision-induced decomposition tandem mass spectrometry

✍ Scribed by Federico Maria Rubino; Luigi Zecca; Sandro Sonnino

Publisher: John Wiley and Sons
Year: 1992
Tongue: English
Weight: 587 KB
Volume: 27
Category: Article
ISSN: 1076-5174
DOI: 10.1002/oms.1210271205

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The fragmentation of protonated and cationized sphingosine and sphinganine under metastable and high‐energy collision‐induced decomposition is reported. The protonated compounds undergo abundant charge‐remote fragmen tation of the long alkyl chain, while the cationized molecules yield much less abundant fragmentation and little or no electrocyclic fission of the hydrocarbon portion.

📜 SIMILAR VOLUMES

Characterization of 3-methoxyflavones us

Characterization of 3-methoxyflavones using fast-atom bombardment and collision-induced dissociation tandem mass spectrometry

✍ Y. L. Ma; H. Van den Heuvel; M. Claeys 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 167 KB 👁 2 views

A mass spectrometric method based on the combined use of fast-atom bombardment (FAB), collisioninduced dissociation (CID) and linked scanning at constant B/E has been used for the analysis of the fragmentation behavior of protonated 3-methoxyflavones (3-MFs). It is shown that several diagnostic ions

Characterization of iridoids by fast ato

Characterization of iridoids by fast atom bombardment mass spectrometry followed by collision-induced dissociation of [M + Li]+ ions

✍ Madhusudanan, K. P.; Mathad, V. T.; Shefali, ; Raj, K.; Bhaduri, A. P. 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 146 KB 👁 2 views

Fast atom bombardment mass spectra of a series of naturally occurring and synthetically modified iridoid glycosides were studied using lithium cationization and collision-induced dissociation of the resulting [M Y Li] Y ions. Lithium cationization leads to the unambiguous determination of the molecu

Characterization of Z-blocked isomeric d

Characterization of Z-blocked isomeric dipeptides by fast atom bombardment tandem mass spectrometry and kinetic energy release measurements

✍ Ezio Mammoliti; Giovanni Sindona; Nicola Uccella 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 551 KB

Fast-and slow-reacting, protonated, Z-blocked (Z = benzyloxycarbonyl) phenylalanylphenylalanine and alanylphenylalanyl diasteromeric dipeptides undergo decarboxylation through two competing pathways assisted by the migration of the urethane benzyl group either to the terminal or to the amidic nitrog

Fast atom bombardment and tandem mass sp

Fast atom bombardment and tandem mass spectrometry at high and low collision energy for the sequence analysis of low to middle-mass peptides

✍ Federico Maria Rubino; Bruno Danieli; Francesco Chillemi; Alfredo Cremonesi 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 810 KB

Characterization of Ozonated C60 and C70

Characterization of Ozonated C60 and C70 by High Performance Liquid Chromatography and Low- and High-Energy Collision-induced Dissociation Tandem Mass Spectrometry

✍ An Van Cleempoel; Renaat Gijbels; Magda Claeys; Hilde Van den Heuvel 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 615 KB

The formation of C, and C,o oxides by reaction with ozone has been examined using reversed-phase highperformance liquid chromatography and mass spectrometry including liquid secondary ion mass spectrometry, collision-induced dissociation (CID) and tandem mass spectrometry. Cso and C,,, oxides contai