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Characterization of partially N-acetylated chitosans by near infra-red spectroscopy

✍ Scribed by Kjell M. Vårum; Bjørg Egelandsdal; Marit R. Ellekj˦r

Book ID
107895350
Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
648 KB
Volume
28
Category
Article
ISSN
0144-8617

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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