๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Gas chromatography/negative chemical ionization mass spectrometry of intact glucuronides

โœ Scribed by Sharon Y. Brown; William A. Garland; Elaine K. Fukuda

Publisher
John Wiley and Sons
Year
1990
Tongue
English
Weight
390 KB
Volume
19
Category
Article
ISSN
1076-5174

No coin nor oath required. For personal study only.

โœฆ Synopsis

Gas chromatography-negative chemical ionization mass spectrometry (GC-NCIMS) has been applied to the analysis of 0-and S-glucuronides. The glucuronides were derivatized with pentafluorobenzyl (PFB) bromide and Tri-Sil, and analyzed by GC-NCIMS. All glucuronides gave a large [M-PFBI-ion indicative of the molecular weight of the compound. This methodology has been successfully applied to the identification of a glucuronide of unknown structure.

๐Ÿ“œ SIMILAR VOLUMES

Determination of anabolic steroids by ga
Determination of anabolic steroids by gas chromatography/negative-ion chemical ionization mass spectrometry and gas chromatography/negative-ion chemical ionization tandem mass spectrometry with heptafluorobutyric anhydride derivatization
โœ Man Ho Choi; Bong Chul Chung; Won Lee; Un Chul Lee; Yunje Kim ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 118 KB ๐Ÿ‘ 2 views

A gas chromatography/mass spectrometry (GC/MS) method is described which uses negative ion chemical ionization (NCI) and tandem mass spectrometry (MS/MS) for the determination of eight anabolic steroids in human urine. Eight anabolic steroids were derivatized by heptafluorobutyric anhydride (HFBA),

Analysis of alkenes by copper ion chemic
Analysis of alkenes by copper ion chemical ionization gas chromatography/mass spectrometry and gas chromatography/tandem mass spectrometry
โœ Fordham, P. J.; Chamot-Rooke, J.; Giudice, E.; Tortajada, J.; Morizur, J.-P. ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 164 KB ๐Ÿ‘ 2 views

A novel chemical ionization/fast atom bombardment (CI/FAB) source was used to analyse alkenes by chemical ionization mass spectrometry (CI-MS) using copper ions as the ionizing agent. The Cu Y -CI mass spectra showed abundant pseudomolecular adduct ions [alkene-Cu] Y and characteristic fragment ions