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Investigation of Lignin Oligomers Using Electrospray Ionisation Mass Spectrometry
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H. önnerud
Published/Copyright:
June 1, 2005
Summary
Electrospray ionisation Fourier transform ion cyclotron resonance mass spectrometry (MS) and size exclusion chromatography (SEC) was utilised for analysis of milled wood lignin (MWL) and lignin model compounds degraded by thioacidolysis. MS and SEC showed that thioacidolysis was an efficient method for degradation of the β-O-4 bond in lignin. Moreover, the molecular weight of thioacidolysed pinoresinol and MWL were analysed using matrix assisted laser desorption ionisation time-of-flight mass spectrometry. Tandem MS was successfully applied for the structural determination of thioacidolysed pinoresinol with and without acetylation of the product. The MS results of thioacidolysis on MWL resulted in the identification of a tetrameric lignin structure containing a 5-O-4, 5-5, β-1 linkage pattern.
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Published Online: 2005-06-01
Published in Print: 2003-01-08
Copyright © 2003 by Walter de Gruyter GmbH & Co. KG
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Articles in the same Issue
- The Relationship Between Variability of Cell Wall Mass of Earlywood and Latewood Tracheids in Larch Tree-Rings, the Rate of Tree-Ring Growth and Climatic Changes
- How Variability in OSB Mechanical Properties Affects Biological Durability Testing
- Microfibril Angles Inside and Outside Crossfields of Norway Spruce Tracheids
- Reactivity of a Fungal Laccase Towards Lignin in Softwood Kraft Pulp
- Lignans and Lipophilic Extractives in Norway Spruce Knots and Stemwood
- Investigation of Lignin Oligomers Using Electrospray Ionisation Mass Spectrometry
- Reactions of Lignin with Peroxymonophosphoric Acid: The Degradation of Lignin Model Compounds
- The Reactions of Lignin Model Compounds with Hydrogen Peroxide at Low pH
- Spin Distribution in Dehydrogenated Coniferyl Alcohol and Associated Dilignol Radicals
- Ultrastructural Localisation of Glucomannan in Kraft Pulp Fibres
- New Method for Quantitative Preparation of Lignin- Carbohydrate Complex from Unbleached Softwood Kraft Pulp: Lignin-Polysaccharide Networks I
- Peroxide Bleaching of Parquet Blocks and Glue Lams
- Easily Degradable Chlorinated Compounds Derived from Glucuronoxylan in Filtrates from Chlorine Dioxide Bleaching of Eucalyptus globulus Kraft Pulp
- Non-Deterministic Description of Wood Radio Frequency Vacuum Drying
- Bending Creep of High-Temperature Dried Spruce Timber
- Optimization of a Violin Top with a Combined Laminate Theory and Honeycomb Model of Wood
- Optimisation of Soda Pulping Variables for Preparation of Dissolving Pulps from Oil Palm Fibre
