基金项目：甘肃中医药大学中青年科研基金项目(2305016601)

    通讯作者：王惠珍，E-mail：whz1974828@163.com

    Rheum palmatum L. from different areas and ages in Gansu Province significantly differed (P<0.05). Two year old Rheum palmatum L. from Pingxiang village of Li county and Rushu village of Tanchang county had the best quality， and that of three years old was better than two years old from Tanchang county. Conclusion The established fingerprints and QAMS method is accurate ......