考察研究了丹参主要有效成分隐丹参酮和丹参酮 A在不同酸性介质中的荧光特性。结果表明隐丹参酮和丹参酮 A均有很宽的 p H发光范围 ( p H=1- 11)。在 p H=2 - 3时 ,隐丹参酮和丹参酮 A荧光发射最强。在强酸 ( 5mol/L HCl)和强碱 ( 2 mol/L Na OH)介质中隐丹参酮和丹参酮 A的荧光均被显著猝灭 ,同时荧光光谱发生明显蓝移。表明隐丹参酮和丹参酮 A在强酸强碱下分子结构发生了明显变化。从而为它们的药理及其理化性质等的研究提供了分子结构信息等的依据 The fluorescent properties of cryptotanshinone and tanshinone A, the main active components of Salvia miltiorrhiza Bunge, in different acidic media were investigated. The results show that both cryptotanshinone and tanshinone A have a wide range of p H luminescence (p H = 1-11). At p H = 2 - 3, the fluorescence of cryptotanshinone and tanshinone A was the strongest. Fluorescence of cryptotanshinone and tanshinone A were significantly quenched in strong acid (5 mol / L HCl) and strong alkali (2 mol / L NaOH) medium, and the fluorescence spectra were markedly blue-shifted. Show that cryptotanshinone and tanshinone A strong changes in the molecular structure under strong acid and alkali. Thus providing a basis for molecular structure information and the like for their pharmacological and physicochemical properties