Determination of N-acetyl content in chitosan samples by c.d. measurements
β Scribed by A. Domard
- Book ID
- 119070114
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 320 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0141-8130
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π SIMILAR VOLUMES
A simple and rapid method for the quantitative determination of N-acetyl groups in chitin-chitosan samples consists of an acid hydrolysis conducted at high temperature with a mixture of sulfuric and oxalic acids. The acetic acid formed is determined by spectrophotometry at 210 nm after separation fr
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