A new method was found to determine methyl catechol,catechol and pyrogallie acid in arrowhead which is fast, simple and accurately.

• 通过实验建立了慈姑中愈创木酚、儿茶酚、焦性没食子酸的含量测定方法,该测定方法快捷、简便、准确,所测结果稳定、重现性好。