✦ LIBER ✦

“Slow” metastable decomposition of oligosaccharide cations produced in an external source fourier transform mass spectrometer

✍ Scribed by Lambert Ngoka; Carlito B. Lebrilla

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 604 KB
Volume: 4
Category: Article
ISSN: 1044-0305
DOI: 10.1016/1044-0305(93)85083-a

No coin nor oath required. For personal study only.

✦ Synopsis

Unimolecular metastable decomposition of cucyclodextrin cations is observed in a fast-atom bombardment Fourier transform mass spectrometry instrument. Cleavage reactions occur at the glycosidic bonds to produce oligomeric fragment ions. The first-order rate constant for the decay of the protonated parent was measured and found to be (4.2 ± 1.0) × 10(2)s(-1).

📜 SIMILAR VOLUMES

Metastable decay of peptide ions on a Fo

Metastable decay of peptide ions on a Fourier transform mass spectrometer equipped with an external ion source

✍ Ho, Yen-Peng; Fenselau, Catherine 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 87 KB 👁 2 views

Metastable decay rates of two peptides, RPPGFSPF and PKPQQFFGLM, were determined from ions produced in an external matrix-assisted laser desorption/ionization source with a Fourier transform mass spectrometer. An isolation and subtraction method that gives difference spectra was employed to monitor