【摘要】 采用乙酰丙酮与氨基端反应的生色原理,将乙酰丙酮法应用于甲壳胺寡糖数均分子量的测定。通过对方法的重复性、精密性和稳定性试验,证明方法可靠。同时,通过对已报道测定甲壳胺寡糖端基相对分子质量的铁氰化钾法、HPLC法进行比较。结果表明:乙酰丙酮法比铁氰化钾法更适合甲壳胺寡糖数均分子量的测定。更多还原

【Abstract】 To determine the number average molecular mass of chitosan-oligosaccharide by u-sing the acetylacetone’s method based on the color-producing reaction with amino terminal . Via the tests on the repetitiveness, accuracy and the stability, supposed this method was reliable. At the same time, the contrastive results of HPLC and the traditional K3Fe(CN)6 method indicate that the acetylacetone method was more suitable for the determination of chitosan-oligosaccharide molecular mass.更多还原