1·Methods The inhibitory cytopathic effects (CPE) of catechu extract on influenza A virus were observed by MDCK cell culture techniques.
方法用狗肾传代MDCK细胞培养法观察儿茶提取物抑制甲型流感病毒的致细胞病变作用；
2·Objective:To establish a content assay method of catechu aldehyde in salvia miltiorrhiza oral liquid by HPLC.
目的：建立丹参口服液中原儿茶醛含量的高效液相色谱法（HPLC法）测定方法。
3·Catechu element kind the 70 % left and right sides that corporeal content occupies gross of tea much phenol about.
儿茶素类物质的含量约占茶多酚总量的70%左右。