采用双波长薄层扫描法测定开胸顺气胶囊中厚朴酚与和厚朴酚的含量。样品采用乙醇提取,样品溶液与对照品溶液如法点样、展开、扫描,波长λ_s=285nm,λ_R=350nm。此法能排除其它成分干扰,方法简便、灵敏、准确,平均回收率为99.87％,经稳定性、空白、重现性等试验证明方法可行。 Double-wavelength thin-layer scanning method was used to determine the content of magnolol and honokiol in Kaixishunqi Capsule. The sample was extracted with ethanol. The sample solution and the reference solution were spotted, developed, and scanned at a wavelength of λ_s=285 nm and λ_R=350 nm. This method can exclude other components of interference, the method is simple, sensitive, accurate, the average recovery rate of 99.87%, the stability, blank, reproducibility and other tests prove that the method is feasible.