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用气－质联用鉴定红景天多糖由鼠李糖、阿拉伯糖、甘露糖、葡萄糖、半乳糖和一有待确证的组份组成。红景天多糖组成单糖的摩尔比为鼠李糖：阿拉伯糖：甘露糖：葡萄糖：半乳糖＝1．15：2．60：0．44：4．71：1．00。
Identification of Rhodiola polysaccharides by gas-mass spectrometry consisted of rhamnose, arabinose, mannose, glucose, galactose, and a component to be confirmed. The molar ratio of polysaccharide constituents of rhodiola rosea is rhamnose: arabinose:mannose:glucose:galactose=1.15:2.60:0.44:4.71:1.00.