一种壳聚糖纤维的鉴别及脱乙酰度的测定
Identification of chitosan fiber and its determination of deacetylation degree
柴林玉 1茅沈杰 1叶青 1沈红 1赵亮亮 1刘滨1
作者信息
- 1. 江苏省纺织产品质量监督检验研究院,江苏南京 210001
- 折叠
摘要
利用显微镜法、燃烧法、溶解法,并结合红外光谱法来鉴别壳聚糖纤维.通过分析与比较,提出了较为实用且简单易行的鉴别方法,并对壳聚糖纤维的脱乙酰度进行测定.结果表明,壳聚糖纤维的脱乙酰度为84.50％,验证了壳聚糖纤维的脱乙酰度至少为75％的鉴定,保证了定性结果的准确性.
Abstract
By using microscopy,combustion,dissolution,and combined infrared spectroscopy chitosan fi-bers were identified.A more practical and simple identification method was proposed through analysis and comparison and the degree of deacetylation of chitosan fibers was measured.The results showed that the degree of deacetylation of chitosan fibers was 84.50％.It was verified that the degree of deacetylation of chi-tosan fibers was at least 75％,ensuring the accuracy of qualitative results.
关键词
壳聚糖纤维/定性鉴别/脱乙酰度/酸碱滴定Key words
chitosan/qualitative identification/deacetylation degree/acid-base titration引用本文复制引用
出版年
2024
NETL
NSTL
万方数据