【摘要】 本文对丹参酮 ( Tan )分子的紫外吸收、荧光光谱 ,液氮低温下的荧光、磷光光谱等光谱行为进行了详细的对比研究 ,考察了酸度对各种光谱的发光强度及波长位置影响的规律 ,计算了磷光寿命、荧光量子产率、偏振等重要参数。p H对 Tan 的荧光光谱特性有影响。在强酸或强碱介质中 Tan 的荧光被显著猝灭 ,发射光谱蓝移 ,并有分子结构的变化 ,在强碱性介质中 Tan 发生了不可逆的开环反应更多还原

【Abstract】 Several kinds of spectra,structure of tanshinoneⅠ (TanⅠ) and pH effects were studied comparatively.Some important parameters,such as phosphorescence life time, polarization and quanta yield were obtained. The results show that in strong basic media, the structure is destroyed, and ring-opening even occurs.更多还原