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作 者:刘月启[1] 蔡青松[1] 于兆文[1] 常俊标[2] 蒋生祥[1] 陈立仁[1]
机构地区:[1]中国科学院兰州化学物理研究所,甘肃兰州730000 [2]河南省化学研究所,河南郑州450003
出 处:《色谱》2000年第4期287-290,共4页Chinese Journal of Chromatography
基 金:中国科学院重点基金!资助课题 (批准号 :KY95 S1 2 0 5)
摘 要:合成了纤维素 三 ( 3,5 二甲基苯基氨基甲酸酯 ) (CDMPC)衍生物 ,并将其涂敷于自制的球形硅胶上 ,制备出用于高效液相色谱手性拆分的固定相。在正相条件下 ,用该固定相对 5种酸性外消旋联苯类药物进行了直接拆分 ,并考察了流动相组成和样品结构对保留和拆分的影响 ,讨论了固定相对样品的作用模式。结果表明 ,在正己烷 /异丙醇流动相体系中加入少量三氟乙酸 ,可对外消旋羧酸类化合物进行有效的手性拆分。A chiral stationary phase was prepared by coating cellulose tris(3,5 dimethylphenylcarbamate) onto aminopropylated silica gel. A series of enantiomeric acidic biphenyl drugs were directly resolved on the chiral stationary phase (CSP) by normal phase high performance liquid chromatography (HPLC).A hexane 2 propanol eluting system containing 1% of trifluoroacetic acid was used as mobile phase. Efficient optical resolution of the acidic biphenyl drugs has been attained.The factors that influence chiral discrimination such as structural characeristic of the samples and mobile phase were investigated. An interaction model between the stationary phase and the samples was discussed.The results showed that efficient optical resolution of racemic carboxylic acids could be attained by normal phase HPLC on CSP using a hexane 2 propanol eluting system containing 1% of trifluoroacetic acid.
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