An HPLC-DAD method for the determination of cichoric acid in Echinacea purpurea was reported by use of 400 mmol/L ammonium acetate-methanol (95:5) as mobile phase.

• 首次应用醋酸铵-甲醇组成流动相与C_(18)反相柱、二极阵列管检测器分析菊苣酸。