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Lignin analysis with benchtop NMR spectroscopy
RISE - Research Institutes of Sweden, Bioeconomy, Biobased Materials.ORCID iD: 0000-0001-5148-8390
Magritek GmbH, Germany.
Magritek GmbH, Germany.
RISE - Research Institutes of Sweden, Bioeconomy, Biobased Materials.ORCID iD: 0000-0003-0779-5267
2019 (English)In: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434XArticle in journal (Refereed) Epub ahead of print
Abstract [en]

Benchtop nuclear magnetic resonance (NMR) spectroscopy is an emerging field with an appealing profile for industrial applications. The instrumentation offers the possibility to measure NMR spectra in situations where high-field NMR spectroscopy is considered too expensive or complicated. In this study, we investigated the scope and limitations of 1H NMR measurements on kraft lignins and black liquors at low magnetic field strengths (1.0 and 1.5 T). The ability to quantify different classes of compounds was investigated and found to be promising. NMR-based diffusion measurements were performed, with the aim of gaining insight into the molar mass of the lignins at hand. These measurements were fast, repeatable and in good agreement with established methods.

Place, publisher, year, edition, pages
De Gruyter , 2019.
Keywords [en]
benchtop NMR, black liquor, diffusion, lignin, NMR, Nuclear magnetic resonance, Different class, Diffusion measurements, Gaining insights, Lignin analysis, Low magnetic fields, NMR measurements, Nuclear magnetic resonance(NMR), Nuclear magnetic resonance spectroscopy
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-39676DOI: 10.1515/hf-2018-0282Scopus ID: 2-s2.0-85068798730OAI: oai:DiVA.org:ri-39676DiVA, id: diva2:1341025
Available from: 2019-08-07 Created: 2019-08-07 Last updated: 2019-08-07Bibliographically approved

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Rönnols, JerkAldaeus, Fredrik

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