31P NMR Chemical Shifts of Solvents and Products Impurities in Biomass Pretreatments | Zendy

Mi Li | Zendy; Chang Geun Yoo | Zendy; Yunqiao Pu | Zendy; Arthur J. Ragauskas | Zendy

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³¹P NMR Chemical Shifts of Solvents and Products Impurities in Biomass Pretreatments

Author(s) -

Mi Li,

Chang Geun Yoo,

Yunqiao Pu,

Arthur J. Ragauskas

Publication year - 2017

Publication title -

acs sustainable chemistry and engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.878

H-Index - 109

ISSN - 2168-0485

DOI - 10.1021/acssuschemeng.7b03602

Subject(s) - biorefinery , chemistry , lignin , chemical shift , ionic liquid , carbon 13 nmr , organic chemistry , decomposition , biomass (ecology) , nuclear magnetic resonance spectroscopy , nmr spectra database , proton nmr , raw material , catalysis , spectral line , astronomy , geology , oceanography , physics

The identification of chemical impurities is crucial in elucidating the structures of biorefinery products using nuclear magnetic resonance (NMR) spectroscopic analysis. In the current biorefinery platform, contaminants derived from pretreatment solvents and decomposition byproducts may lead to misassignment of the NMR spectra of biorefinery products (e.g, lignin and bio-oils). Therefore, we investigated 54 commonly reported compounds including alcohols, carbohydrates, organic acids, aromatics, aldehydes, and ionic liquids associated with biomass pretreatment using 31P NMR. The chemical shifts of these chemicals after derivatizing with 2-chloro-4,4,5,5-tetramethyl-1,3,2-dioxaphospholane (TMDP) were provided. The 31P NMR signals of these derivatives could serve as valuable and informative spectral data in characterizing lignocellulose-based compounds.

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