| 摘要 |
PURPOSE:A separating agent useful for separating especially optical isomers which had been very difficult to separate up to this time, comprising a nitric ester of polysaccahride or a nitric ester group-containing derivative as an active ingredient. CONSTITUTION:A separating agent comprising a nitric ester of polysaccharide or a nitric ester group-containing derivative as an active ingredient. Any polysaccharide such as synthetic polysaccharide, natural polysaccharide, natural modified polysaccharide may be used as the polysaccharide if it has optical activity. A polysaccharide having high regularity of bond style, providing easily high-purity polysaccharide, is preferable, and cellulose, amylose, beta-1,3-glucan, etc. may be cited. These polysaccharides have preferably 100-500 number-average polymerization degree. In order to use the separating agent, chromatography method is suitable, the nitric ester of polysaccharide is spun into hollow yarn, a solution containing the desired compound to be separated is made to flow in it, and it is adsorbed on the inner wall of the hollow yarn.
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