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. 2010 Apr 29;8(5):1567–1636. doi: 10.3390/md8051567

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© 2010 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland

This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Sections of the ¹³C NMR spectra of chitosan; DA = 48, showing the C-5 signals region. Spectrum was recorded at 100 MHz and 70 °C in D₂O (pD ~ 5) relative to internal acetone (δ_C 31.45). Appropriate sequences are labeled.