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Laser Desorption Fourier Transform Mass Spectrometry of Natural Polymers
Author(s) -
Srzić D.,
Martinović S.,
Paša Tolić Lj.,
Kezele N.,
Kazazić S.,
Senković Lj.,
Shevchenko S. M.,
Klasinc L.
Publication year - 1996
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/(sici)1097-0231(19960331)10:5<580::aid-rcm498>3.0.co;2-8
Subject(s) - chemistry , trimer , mass spectrometry , fourier transform ion cyclotron resonance , desorption , polymer , analytical chemistry (journal) , ion , fourier transform , fourier transform infrared spectroscopy , mass spectrum , chromatography , organic chemistry , chemical engineering , adsorption , dimer , mathematical analysis , mathematics , engineering
Natural polymers, humic acid and lignins, were investigated by laser desorption (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 prefer to form negative ions of the individual oligomers at well‐defined mass spacings and with a distribution from m/z several hundred to 3000. Three sequences with Δ m≊ 444 confirm the existence of stable trimer building blocks in the coniferous lignins.