RESULT The content of aristolochic acid A in the parts of Herba cum Radice Asari above the ground was higher that in the root part,and aristolochic acid A was not detected in the preparation.

• 不同药用部位及其制剂定喘穴贴膏中马兜铃酸A的含量。结果细辛地上部分粗粉中马兜铃酸A含量高于细辛根茎粗粉中马兜铃酸A含量,制剂中没有检出马兜铃酸A。