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  • Title: Elucidation of lignin structure by quantitative 2D NMR.
    Author: Sette M, Wechselberger R, Crestini C.
    Journal: Chemistry; 2011 Aug 16; 17(34):9529-35. PubMed ID: 21721058.
    Abstract:
    Quick quantitative HSQC (QQ-HSQC) was applied to quantitative evaluation of different inter-unit linkages in an array of milled softwood and hardwood and technical lignins by using the guaiacyl C2 and syringyl C2-C6 signals as internal standards. The results were found to be highly reproducible and comparable with earlier literature reports. The advantage of QQ-HSQC NMR analysis of lignin is contemporary detection and quantification of lignin inter-unit linkages with a direct, non-destructive method requiring short acquisition times.
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