✦ LIBER ✦

Electrospray ionization, accurate mass measurements and multistage mass spectrometry experiments in the characterization of stereoisomeric isoquinoline alkaloids

✍ Scribed by Anna Maria Gioacchini; Zbigniew Czarnocki; Zbigniew Arazny; Ilaria Munari; Pietro Traldi

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 128 KB
Volume: 14
Category: Article
ISSN: 0951-4198
DOI: 10.1002/1097-0231(20000915)14:17<1592::aid-rcm67>3.0.co;2-6

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Characterization of aconitine-type alkal

Characterization of aconitine-type alkaloids in the flowers of Aconitum kusnezoffii by electrospray ionization tandem mass spectrometry

✍ Yong Wang; Fengrui Song; Qingxuan Xu; Zhiqiang Liu; Shuying Liu 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 248 KB

## Abstract The fragmentation mechanism of aconitine‐type alkaloids in the flowers of __Aconitum kusnezoffii__ (FAK) was investigated using electrospray ionization tandem mass spectrometry (ESI‐MS^__n__^) firstly. The analysis of the collision‐induced dissociation (CID) spectra of three purified ac

High-resolution Mass Spectrometry and Ac

High-resolution Mass Spectrometry and Accurate Mass Measurements with Emphasis on the Characterization of Peptides and Proteins by Matrix-assisted Laser Desorption/Ionization Time-of-flight Mass Spectrometry

✍ Russell, David H.; Edmondson, Ricky D. 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 434 KB 👁 2 views

Fundamental concepts of high-resolution mass spectrometry as it relates to the issue of accurate mass measurements are presented. Important issues speciÐc to magnetic sector instruments, Fourier transform ion cyclotron resonance and time-of-Ñight (TOF) methods are discussed. Recent high-resolution T

Negative ion electrospray ionization tan

Negative ion electrospray ionization tandem mass spectrometry in the structural characterization of penicillins

✍ Susanna Rabbolini; Elisabetta Verardo; Marco Da Col; Anna Maria Gioacchini; Piet 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 116 KB 👁 2 views

The mass spectrometry (MS) behaviour of ten commercially available penicillins has been studied by means of electrospray and multiple-stage MS/MS experiments performed using an ion trap instrument. For all the examined compounds negative ions are produced under ESI conditions, with a yield two or th

Atmospheric pressure chemical ionization

Atmospheric pressure chemical ionization multi-stage mass spectrometry in the characterization of stereoisomeric synthons of cyclopropane amino acids

✍ Cristoni, Simone; Cativiela, Carlos; Jim�nez, Ana I.; Traldi, Pietro 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 203 KB

The mass spectrometric behaviour of (1S,2R)-, (1R,2R)-, (1R,2S)-and (1S,2S)-2-[(S)-2,2-dimethyl-1,3-dioxolan-4-yl]-1-spiro-f4 [2 -phenyl-5 (4 H)-oxazolone]g cyclopropane (2) and (1S,2R)-, (1R,2R)-, (1R,2S)-and (1S,2S)methyl-1-benzamido-2-[(S)-2,2-dimethyl-1,3-dioxolan-4-yl]cyclopropanecarboxylate (3

Packed capillary liquid chromatography/e

Packed capillary liquid chromatography/electrospray ionization/mass spectrometry in the pharmaceutical sciences: Characterization of protein mixtures

✍ M. Arthur Moseley III; Steve E. Unger 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 342 KB

## Abstract The coupling of packed capillary liquid chromatography with electrospray ionization mass spectrometry has yielded an instrument capable of generating molecular weight information from very complex natural protein mixtures. The use of the packed capillary liquid chromatography columns of

The use of a stable internal mass standa

The use of a stable internal mass standard for accurate mass measurements of oligonucleotide fragment ions using electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry with infrared multiphoton dissociation

✍ Steven A. Hofstadler; Richard H. Griffey; Ljiljana Pasa-Tolic; Richard D. Smith 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 85 KB 👁 2 views

In this work we demonstrate the use of peptide as a stable internal mass standard to obtain accurate mass measurements of infrared multiphoton dissociation (IRMPD) generated phosphorothioate oligonucleotide fragment ions. Because oligonucleotides are more readily dissociated in the gas phase by IRMP