Conclusion: The method was simple and accurate and can be used to distinguish eight species of Geranium and one specis of Erodium is workable, the result is trusty.

• 结论：该法简便、准确、灵敏，可鉴别9种老鹳草，应用紫外谱线组法鉴别中药材易混品种是科学可行的。