PURIFICATION OF 25-HYDROXY-CHOLECALCIFEROL FROM IRRADIATION OF CHOLESTA-5,7-DIOL BY HIGH-SPEED COUNTERCURRENT CHROMATOGRAPHY
文献类型： 外文期刊
第一作者： DU, QH
作者： DU, QH;ZHANG, TY;ITO, Y
作者机构：
期刊名称：JOURNAL OF LIQUID CHROMATOGRAPHY
ISSN： 0148-3919
年卷期： 1995 年 18 卷 1 期
页码：
收录情况： SCI
摘要： High-speed countercurrent chromatography (HSCCC) was used for the separation of 25-hydroxycholecalciferol (25-HCC) from a post-irradiation mixture of cholesta-5,7-diene-3 beta,25-diol. With a two-phase solvent system composed of hexane/ethyl acetate/methanol/water (5:1:5:1, v/v/v/v), 500 mg of reaction mixture containing 245 mg of 25-HCC was separated with 207 mg of the product obtained at a purity of 97.7%. The separation was completed within 2 hours.
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