Methods The extraction process was studied by orthogonal design with the content of Salvianolic Acid B,Danshensu and Protocatchuci aldehyde determined by RP-HPLC as index.

• 方法采用正交试验法,以丹酚酸B、丹参素、原儿茶醛的含量为指标优选最佳提取工艺。