LASER-DESORPTION FOURIER-TRANSFORM MASS-SPECTROMETRY OF NATURAL POLYMERS

Authors
SRZIC D MARTINOVIC S TOLIC LP KEZELE N KAZAZIC S SENKOVIC L SHEVCHENKO SM KLASINC L
Citation
D. Srzic et al., LASER-DESORPTION FOURIER-TRANSFORM MASS-SPECTROMETRY OF NATURAL POLYMERS, Rapid communications in mass spectrometry, 10(5), 1996, pp. 580-582
Citations number
20
Categorie Soggetti
Spectroscopy,"Chemistry Analytical
Journal title
Rapid communications in mass spectrometry → ACNP
ISSN journal
09514198
Volume
10
Issue
5
Year of publication
1996
Pages
580 - 582
Database
ISI
SICI code
0951-4198(1996)10:5<580:LFMONP>2.0.ZU;2-2
Abstract
Natural polymers, humic acid and lignins, were investigated by laser d esorption (LD) Fourier transform mass spectrometry. In the vapor phase under LD conditions only positive ions of humic acid were observed up to m/z 700. Under the same conditions all the lignins investigated pr efer to form negative ions of the individual oligomers at well defined mass spacings and with a distribution from m/z several hundred to 300 0. Three sequences with Delta m approximate to 444 confirm the existen ce of stable trimer building blocks in the coniferous lignins.