中文摘要：

目的：为桑白皮的鉴别提供科学依据。方法：采用紫外-可见光谱法和导数光谱法进行鉴别。结果：桑白皮的紫外-可见光谱和导数光谱具有一定的光谱特征。结论：本研究可为桑白皮的鉴别提供辅助手段。

英文摘要：

Objective： To provide the scientific evidence for the identification of white mulberry root-bark.Method： Using the method of Uv-vis spectrum and derivative spectrum.Result： The Uv-vis spectrum and derivative spectrum of white mulberry root-bark have certain spectral properties.Conclusion： The method can be used as a supplementary method in the identification of white mulberry root-bark.