The crudes were purified by silica gel chromatograph and the crude peptides were purified by recrystallization using EtOH and H_2O.
反应后得到的粗品用硅胶柱色谱纯化，粗品肽用乙醇和水重结晶。
Methods a new compound was isolated by the silica gel and Sephadex LH-20 column chromatograph, and identified by the physicochemical characters and spectroscopic analysis.
方法采用硅胶柱色谱、凝胶柱色谱进行分离，通过理化性质和波谱分析方法鉴定化合物结构。
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