单台与双台串联高速逆流色谱分离能力的比较

Comparative Investigation on the Separability between Single andSerially Coupled Dual High-Speed Counter-Current Chromatographs

比较了两台柱容量２３０ｍＬ的高速逆流色谱仪串联使用和单台使用的分离能力。两种溶剂系统（己烷－乙酸乙酯－甲醇－水，己烷－乙酸乙酯－水）、两种样品（吲哚类生长素、多酚酸）的实验结果表明，双机串联使用，其分离能力是单机的四倍，达到了提高分离能力的目的。

his paper reports the results ofcomparative investigation on separability between single and serially coupleddual high-speed counter-current chromatography instrument. Two samples(indole auxin and polyphenolic acids)and two solvents (hexane-methanol-ethyl acetate-water and hexane-ethyl acetate-water ) used in comparativeexperiments. The results showed that the separability of serially coupled dual instrument was four times as muchas that of the single one,and a gram-seale preparation has been attained.