止淋胶囊中牡丹酚是其主要有效成分之一，根据牡丹酚易随水蒸气馏出的特点，提取分离并应用紫外分光光度法对其进行了定性定量分析，通过引进助包团-OH，使波长长移，消除了空白干扰，加样回收率98.75%（n=6），RSD=0．68%。

Paeonol is one of the active components of the anti-gonorrheic preparation Zhilin capsule.As it is volatile with steam,paeonol can be separated from the preparation by steam distillation and determined qualitatively and quantitatively by visible and ultraviolet spectrophotometry.With the addition of an auxochrome-OH,blank interference can be eliminated and a recovery rate of added sample of 98.75 % (n=6),RSD=0.68% was obtained.