𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Desorption/Chemical Ionization Mass Spectrometry of Naturally Occurring Glycosides

✍ Scribed by Kurt Hostettmann; Jacques Doumas; Michel Hardy

Publisher
John Wiley and Sons
Year
1981
Tongue
German
Weight
402 KB
Volume
64
Category
Article
ISSN
0018-019X

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Desorption/chemical ionization mass spectrometry (D/CI.‐MS.) is a recently developed technique especially indicated for highly polar and non volatile compounds. Various naturally occurring glycosides such as saponins, iridoid and secoiridoid glycosides, cardenolides and flavone‐O‐glycosides have been investigated by this method. All the measurements were carried out on underivatized compounds. In addition to the structural informations generally furnished by field‐desorption mass spectrometry (molecular ion and sugar sequence), the molecular ion and pertinent fragments of the aglycone could also be obtained.

📜 SIMILAR VOLUMES

Analysis of naturally occurring α-acetot
Analysis of naturally occurring α-acetotriacylglycerides by gas chromatography — chemical ionization mass spectrometry
✍ Spitzer, Volker ;Aichholz, Reiner 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 485 KB

## Abstract The seed oils of three Maytenus species have been examined by high temperature GLC using SOP‐50 (methoxy‐terminated) and OV‐225‐OH (OH‐terminated) glasscapillary columns. The main compounds (71–76%) could be identified as α‐mono‐acetotriacylglycerols by a combination of high temperature

Electron Impact- and Chemical Ionization
Electron Impact- and Chemical Ionization-Mass Spectrometry of Naturally Occurring Sesquiterpene Lactones from Achillea spp.
✍ G. Reznicek; U. Kastner; S. Glasl 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 160 KB 👁 2 views

The electron impact-mass spectra as well as the complementary chemical ionization-mass spectra (with the reactant gas ammonia) of various structural types of sesquiterpene lactones isolated from Achillea species are discussed in respect to the important information either gained by fragmentation pat

Chemical ionization mass spectrometry wi
Chemical ionization mass spectrometry with amines as reactant gases. V—Amine chemical ionization mass spectrometry of flavonoid glycosides
✍ N. N. Mollova; V. S. Bankova; S. S. Popov 📂 Article 📅 1987 🏛 John Wiley and Sons 🌐 English ⚖ 472 KB

The chemical ionization mass spectra of flavonoid glycosides (0-glycosides, C-glycosides and acetylated glycosides) have been investigated. Triethylamine, ethylenediamine, diethylamine, methylamine and ammonia were used as reactant gases. The fragmentation mechanism is discussed, and the perspective