Application of Chloride Adduct Ionization Tandem Mass Spectrometry for Characterizing and Sequencing Synthetic Lignin Model Compounds
| Autor: | Bert C. Lynn, Poorya Kamali, Shardrack O. Asare, Fan Huang |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Chemistry
General Chemical Engineering 010401 analytical chemistry food and beverages Energy Engineering and Power Technology Trimer 010402 general chemistry Mass spectrometry Tandem mass spectrometry 01 natural sciences Chloride 0104 chemical sciences Adduct chemistry.chemical_compound Fuel Technology Deprotonation Fragmentation (mass spectrometry) medicine Lignin Organic chemistry medicine.drug |
| Zdroj: | Energy & Fuels. 32:5990-5998 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/acs.energyfuels.8b00559 |
| Popis: | The need for renewable bioenergy sources has renewed interest in lignin chemistry; however, structural elucidation and characterization of lignin degradation products remain a challenge because of lack of effective analytical methods. The analysis of lignin oligomers has been accomplished by simple deprotonation of weakly acidic phenolic moieties using NaOH and analyzed in a negative ESI mass spectrometry. Although simple deprotonation works to produce excellent results for many types of lignin compounds, others can undergo extensive in-source fragmentation for certain bond types making structural elucidation more complicated. Herein, we present an alternative method for analyzing lignin model compounds using chloride adduct chemistry. In this study, nine β-O-4 dimers, an (4-Ο-α)(β-Ο-4) trimer, and a (β-O-4)(β-O-4) trimer were synthesized and analyzed using chloride adduct mass spectrometry in the negative mode using NH4Cl as the chloride source. Stable chloride adducted molecular ions were observed for a... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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