王隶书¹　程东岩¹　李阳²（1 吉林省中医中药研究院 130021；2 吉林工业大学医院 130022）

提 要：目的：建立癃闭通胶囊中贝母素乙的含量测定方法。方法：双波长薄层扫描法，薄层板：硅胶G-CMC薄层板，展开剂：苯—丙酮—醋酸乙酯—浓氨水(2:3:4:0.2)，显色方法：喷以改良碘化铋钾试液。结果：线性范围0.285μg～2.565μg，平均回收率为98.6%，RSD为 2.5%。结论：方法准确、可靠，为控制癃闭通胶囊的质量提供了科学依据。

关键词：癃闭通胶囊贝母素乙 双波长薄层扫描法

Content Determination of Peiminine of Longbitong Capsules

Wang lishu, Cheng dongyan, Li Yang (1.Academy of Traditional Chinese Medicine of Jilin Province ，130021；2. Hospital of Jilin Industry University, Changchun, 130021)

ABSTRACT Objective: To set up a method of determining peiminine in wenglitong capsules. Methods：TLC-Scanning was used. Thin layer plate was silica gel G-CMC plate. The developing reagent consisted of benzene-acetone-ethyl acetate ammonia water （2:3:4:0.2）. Colorimetric method was spraying with potassium Iodobis-muthate T.S. reagent. Results：The linear range was from 0.285～2.565μg. The average recovery rate was 98.6 with RSD of 2.5%. Conclusion：This method is accurate，reliable and provides a scientific evidence for controlling the qualities of wenglitong capsules.

KEY WORDS Longbitong capsules; Peiminine; TLCS