Fast Atom Bombardment (FAB)-MS
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منابع مشابه
Structure of the quinone antibiotic EM5519 and the behavior of quinones in fast atom bombardment mass spectrometry.
Fast atom bombardment (FAB) mass and MS/MS spectra of a novel quinone antibiotic are presented. Their interpretation is based upon the examination of reductive behavior of model quinones in FAB solvents.
متن کاملApplication of fast atom bombardment combined with tandem mass spectrometry to the structural elucidation of O-demethylabierixin and related polyether antibiotics.
O-Demethylabierixin, a new polyether antibiotic, was isolated from a Streptomyces spp. Its structure elucidation was carried out with fast atom bombardment mass spectrometry (FAB-MS) and fast atom bombardment mass spectrometry-mass spectrometry (FAB-MS/MS) by comparing spectral patterns with those of structurally similar polyether compounds, nigericin and abierixin. The collision-induced dissoc...
متن کاملStructural determination of saponins extracted from starfish by fast atom bombardment collision-induced dissociation mass spectrometry.
Three saponins were extracted and isolated from starfish by reversed-phase high performance liquid chromatography (HPLC), and analyzed by fast atom bombardment mass spectrometry (FAB-MS). Their molecular weight information could be obtained by the presence of abundant [M+Na]+ ions and weak [M+H]+ ions in FAB-MS spectra. Moreover, high resolution mass measurements of their [M+Na]+ ions were perf...
متن کاملBufadienolides and a new lignan from the bulbs of Urginea maritima.
Thirty three compounds were obtained from the bulbs of Urginea maritima (Liliaceae). The compounds were identified by means of fast atom bombardment mass spectrometry (FAB-MS), nuclear magnetic resonance (1H-NMR), (13C-NMR), nuclear overhauser effects (NOE) and two dimensional (2D) NMR. Ten of them were new natural compounds. Nine were bufadienolides and only one was lignan in these compounds.
متن کاملGlycosphingolipids. Application of Fab Mass Spectrometry and High Resolution Proton Nmr
The potential of fast atom bombardment (FAB) mass spectrometry and of high resolution proton NMR spectroscopy, in the structure elucidation of complex glycosphingolipids (GSL), was assessed with the aid of unmodified, peracetylated and permethylated derivatives. The results of negative ion FAB MS on native GSL and of positive FAB MS on their permethylated derivatives proved to be highly complem...
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تاریخ انتشار 2017