AIM: To assign the 1HNMR finger prints of the roots of Polygonum cuspidatum, Polygonum multiflorum, Rheum palmatum and Rheum tanguticum , and to compare the differences of the 1HNMR finger prints between Polygonum and Rheum species.

• 目的：对中药材虎杖、何首乌和掌叶大黄、唐古特大黄的1HNMR 指纹图进行解析研究，并比较蓼属与大黄属植物1HNMR 指纹图的差别。