Determination of degree of substitution for N-acylated chitosan using IR spectra
β Scribed by Yanming Dong; Congyi Xu; Jianwei Wang; Mian Wang; Yusong Wu; Yonghong Ruan
- Book ID
- 105640001
- Publisher
- SP Science China Press
- Year
- 2001
- Tongue
- English
- Weight
- 128 KB
- Volume
- 44
- Category
- Article
- ISSN
- 1674-7291
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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 cyanate end group method is a means of obtaining a quantitative determination of the NH,-terminal residue (1) and it can give an unequivocal demonstration of a blocked NH, terminus. Thus it was demonstrated that there are no free NH,-terminal residues in cytochrome C (1)) which possesses an N-ac