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Typical stationary phases in normal-phase chromatography include bare silica as well as cyano, diol, and amino bonded phases, and the most used constituent of mobile phase is the non-polar organic solvent, such as hexane [ 24 ]. The chromatographic studies

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were performed on several different HILIC columns: silica, cyano, amino and diol. The amino column was selected as the most suitable stationary phase for further analysis. In preliminary studies, acetonitrile was selected as the organic component of the

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-acetoxyscirpen-3, 4-diol . J Antibiot (Tokyo) 31 , 485 – 486 ( 1978 ). 10.7164/antibiotics.31.485 17. Claridge , C. A. , Schmitz , H

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Acta Botanica Hungarica
Authors: S. Y. Kondratyuk, L. Lőkös, I. Kärnefelt, A. Thell, M.-H. Jeong, S.-O. Oh, A. S. Kondratiuk, E. Farkas, and J.-S. Hur

. Chemistry: Cortex K+ yellow, C–, KC–, P+ yellow; medulla or its upper portion K+ yellow, C–, P–; lower surface K+ violet; containing atranorin (major), zeorin (major), 16β-acetoxyhopane-6α,22- diol (major), leucotylin (minor), 7-chloroemodin (minor), flavo

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