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13C-N.m.r. studies of the acetylation sequences in partially N-deacetylated chitins (chitosans)

✍ Scribed by Kjell M. Vårum; Marit W. Anthonsen; Hans Grasdalen; Olav Smidsrød

Book ID
107726091
Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
558 KB
Volume
217
Category
Article
ISSN
0008-6215

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Determination of the degree of N-acetyla
Determination of the degree of N-acetylation and the distribution of N-acetyl groups in partially N-deacetylated chitins (chitosans) by high-field n.m.r. spectroscopy
✍ Kjell M. Vårum; Marit W. Antohonsen; Hans Grasdalen; Olav Smidsrød 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 452 KB

The composition and sequence of 2-acetamido-2-deoxy-beta-D-glucose (GlcNAc) and 2-amino-2-deoxy-beta-D-glucose (GlcN) residues in partially N-deacetylated chitosans, prepared under homogeneous and heterogeneous conditions, have been determined by 1H-n.m.r. spectroscopy. It was necessary to depolymer