论文部分内容阅读
应用分光光度法对不同产地老头草中的多糖含量进行了测定，经苯酚—硫酸显色，于４９０ｎｍ处测定，其多糖含量为４．５７％～８．３９％。
Spectrophotometry was used to determine the content of polysaccharides in LaoDaogra of different origins. The phenol-sulfuric acid was used to determine the polysaccharide content at the wavelength of 490nm. The polysaccharide content was from 4.57% to 8.39%.