Study of Products of the Alkaline Decomposition of Hydrolysis Lignin by Atmospheric Pressure Photoionization High-Resolution Mass Spectrometry
- Authors: Kosyakov D.S.1, Ipatova E.V.2, Krutov S.M.2, Ul’yanovskii N.V.1, Pikovskoi I.I.1
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Affiliations:
- Core Facility Center “Arktika,” M.V. Lomonosov Northern (Arctic) Federal University
- St. Petersburg Forest Technical University
- Issue: Vol 72, No 14 (2017)
- Pages: 1396-1403
- Section: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/182748
- DOI: https://doi.org/10.1134/S1061934817140064
- ID: 182748
Cite item
Abstract
A method of high resolution-mass spectrometry with acetone doped atmospheric pressure photoionization was used to study products of the alkaline solvolysis of hydrolysis lignin. It was found that the mass spectrum of the depolymerization products of hydrolysis lignin consists of about seven thousand peaks of oligomers, containing up to 10 aromatic units with an average molecular weight of 150 Da. Calculations of the elemental compositions of all detectable oligomers and their visualization on the van Krevelen coordinates allowed us to show that the studied sample differs from native (virgin released) lignin by the presence of fractions with high oxygen contents and highly unsaturated condensed structures, including polynuclear aromatic hydrocarbons. The structural units of lignin oligomers were characterized using an approach based on the collision induced dissociation of precursor ions in a broad m/z range.
About the authors
D. S. Kosyakov
Core Facility Center “Arktika,” M.V. Lomonosov Northern (Arctic) Federal University
Author for correspondence.
Email: kosyakov@mail.ru
Russian Federation, Arkhangelsk, 163002
E. V. Ipatova
St. Petersburg Forest Technical University
Email: kosyakov@mail.ru
Russian Federation, St. Petersburg, 194021
S. M. Krutov
St. Petersburg Forest Technical University
Email: kosyakov@mail.ru
Russian Federation, St. Petersburg, 194021
N. V. Ul’yanovskii
Core Facility Center “Arktika,” M.V. Lomonosov Northern (Arctic) Federal University
Email: kosyakov@mail.ru
Russian Federation, Arkhangelsk, 163002
I. I. Pikovskoi
Core Facility Center “Arktika,” M.V. Lomonosov Northern (Arctic) Federal University
Email: kosyakov@mail.ru
Russian Federation, Arkhangelsk, 163002