𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Liquid chromatography/fast atom bombardment and electrospray ionization mass spectrometry of gibberellin A3 1,2-trans-glycosyl esters

✍ Scribed by Gernot Schneider; Jürgen Schmidt; Thomas Moritz

Book ID
102907174
Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
508 KB
Volume
30
Category
Article
ISSN
1076-5174

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The glucosyl ester (2b), the galactosyl ester (3b), the xylosyl ester (4b) and the arabinosyl ester (5b) of gibberellin A~3~ (GA~3~) as well as the glucosyl ester (7b) and the xylosyl ester (8b) of isoGA~3~ were synthesized and their structures confirmed especially by ^1^H nuclear magnetic resonance. In order to identify such conjugates in nature, the glycosyl esters 2b, 3b, 4b, 5b, 7b and 8b were subjected to mass spectrometry analysis using fast atom bombardment and electrospray ionization techniques. The spectra obtained from both negative and positive ions were compared and interpreted on the basis of tandem mass spectrometry experiments. The differences between the fragmentation of GA~3~ glycosyl ester and that of isoGA~3~ glucosyl ester are discussed. Diagnostic ions were evaluated, which should be useful for the identification of these conjugates by liquid chromatography/mass spectrometry.

📜 SIMILAR VOLUMES

Capillary liquid chromatography/fast ato
Capillary liquid chromatography/fast atom bombardment mass spectrometry of gibberellin glucosyl conjugates
✍ Thomas Moritz; Gernot Schneider; Einar Jensen 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 426 KB 👁 1 views

Nonderivatized gibberellin glucosyl conjugates were analysed by capillary reversed-phase high-performance liquid chromatography/mass spectrometry. Positive as well as negative ion mass spectra were obtained by frit fast atom bombardment. The spectra were found to provide useful information for the i

Direct analysis by electrospray ionizati
Direct analysis by electrospray ionization and matrix-assisted laser desorption ionization mass spectrometry of standard and urinary acylcarnitines. Comparison with fast atom bombardment and gas chromatography chemical ionization mass spectrometry
✍ Gilbert Briand; Monique Fontaine; Ralf Schubert; Guy Ricart; Pierre Degand; Jose 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 712 KB

## Abstract A simple method using matrix‐assisted laser desorption ionization mass spectrometry (MALDI‐MS) is described for the characterization of acylcarnitines in standard solutions and urinary samples from controls and patients with β‐oxidation deficiency disorders. This mass spectrometric appr

The Analysis of Some Corticosteroids and
The Analysis of Some Corticosteroids and Corticosteroid Esters by Liquid Chromatography Coupled with Frit Fast-atom Bombardment Mass Spectrometry
✍ David G. Watson; Alistair G. Davidson; Barry I. Knight 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 105 KB 👁 2 views

A method utilizing a liquid chromatography/mass spectrometry method based on a Frit-fast atom bombardment (FAB) interface was developed for the analysis of corticosteroids and corticosteroid esters. The method used a microbore octadecylsilane column with methanol + water as the mobile phase; 0.5% gl

Analysis of Bile Acids and Bile Alcohols
Analysis of Bile Acids and Bile Alcohols in Urine by Capillary Column Liquid Chromatography–Mass Spectrometry using Fast Atom Bombardment or Electrospray Ionization and Collision-induced Dissociation
✍ Y. Yang; W. J. Griffiths; H. Nazer; J. Sjövall 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 329 KB 👁 2 views

Solid-phase extraction and group separation by anion exchange chromatography were combined with capillary column liquid chromatography-mass spectrometry (LC/MS) to permit a thorough characterization of bile acids and intact conjugates of bile alcohols in human urine. Groups of compounds were separat