Quantitative Characterization of Modified Lignin Using Solid-State 13C NMR Spectroscopy

IF 6.7 1区化学 Q1 CHEMISTRY, ANALYTICAL

Analytical Chemistry Pub Date : 2025-04-24 DOI:10.1021/acs.analchem.5c01084

Haruka Sotome-Yukisada, Kentaro Hiratsuka, Keiichi Noguchi, Jun Ashida, Toshiyo Kato, Kazuhiro Shikinaka, Yasuyuki Matsushita, Yuichiro Otsuka, Yoichi Tominaga

引用次数: 0

Abstract

Solid-state ¹³C nuclear magnetic resonance (NMR) spectroscopy with magic angle spinning (MAS) and direct polarization (DP) techniques is a valuable tool for quantitative and reliable characterization of lignin derivatives, specifically for determining these chemical structures and the degree of substitution upon chemical modification. In this study, the DPMAS ¹³C NMR spectroscopy was used in a quantitative study of the esterifying reaction in lignin derivatives, which allowed the whole lignin structure to be determined. This quantitative evaluation system using DPMAS ¹³C NMR spectroscopy can be widely utilized for lignin characterization without a specific chemical treatment or decomposition of lignin.

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改性木质素的固态13C NMR定量表征

固体13C核磁共振（NMR）与魔角旋转（MAS）和直接极化（DP）技术是定量和可靠表征木质素衍生物的有价值的工具，特别是用于确定这些化学结构和化学修饰后的取代程度。本研究采用DPMAS 13C NMR对木质素衍生物中的酯化反应进行了定量研究，从而确定了整个木质素的结构。这种采用DPMAS 13C核磁共振光谱的定量评价系统可以广泛地用于木质素的表征，而不需要对木质素进行特定的化学处理或分解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Analytical Chemistry 化学-分析化学

CiteScore

12.10

自引率

12.20%

发文量

1949

审稿时长

1.4 months

期刊介绍： Analytical Chemistry, a peer-reviewed research journal, focuses on disseminating new and original knowledge across all branches of analytical chemistry. Fundamental articles may explore general principles of chemical measurement science and need not directly address existing or potential analytical methodology. They can be entirely theoretical or report experimental results. Contributions may cover various phases of analytical operations, including sampling, bioanalysis, electrochemistry, mass spectrometry, microscale and nanoscale systems, environmental analysis, separations, spectroscopy, chemical reactions and selectivity, instrumentation, imaging, surface analysis, and data processing. Papers discussing known analytical methods should present a significant, original application of the method, a notable improvement, or results on an important analyte.