METHOD: the chemical constituents were isolated by using polyamide, silica gel column chromatography and HPLC, and the chemical structures were elucidated by UV, IR, NMR and MS.

方法：采用聚酰胺、硅胶柱色谱、高效液相色谱分离化学成分，UV、IR、NMR、MS等方法进行结构鉴定。

youdao

METHOD: the chemical constituents were isolated by using polyamide, silica gel column chromatography and HPLC, and the chemical structures were elucidated by UV, IR, NMR and MS.

方法：采用聚酰胺、硅胶柱色谱、高效液相色谱分离化学成分，UV、IR、NMR、MS等方法进行结构鉴定。

youdao