一种通过傅里叶变换红外光谱法测定几丁质和壳聚糖乙酰化程度的优化方法。
An optimised method to determine the degree of acetylation of chitin and chitosan by FTIR spectroscopy.
作者信息
Duarte M L, Ferreira M C, Marvão M R, Rocha João
机构信息
Department of Chemistry and Biochemistry, CECUL, University of Lisbon, 1749-016, Lisbon, Portugal.
出版信息
Int J Biol Macromol. 2002 Dec 20;31(1-3):1-8. doi: 10.1016/s0141-8130(02)00039-9.
Linking up the user-friendly and low-priced FTIR with the more sophisticated and high-priced 13C CP/MAS NMR spectroscopies, an improved method to determine the degree of acetylation (DA) of chitins and chitosans was outlined. The method was established for the most complex polymorphic form (alpha-chitin) and for the most problematic range of DA values (most acetylated samples) and can easily be extended to the other polymorphic forms (beta- and gamma-chitins) and to other ranges of DA values.
将用户友好且价格低廉的傅里叶变换红外光谱仪（FTIR）与更精密且价格高昂的13C交叉极化/魔角旋转核磁共振光谱仪（13C CP/MAS NMR）相结合，概述了一种改进的测定几丁质和壳聚糖乙酰化度（DA）的方法。该方法是针对最复杂的多晶型形式（α-几丁质）以及最具问题的DA值范围（乙酰化程度最高的样品）建立的，并且可以轻松扩展到其他多晶型形式（β-和γ-几丁质）以及其他DA值范围。
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