第一节 光学分析法及其分类 Lowest excited singlet state Lowest excited Ground triplet state electronic state 1.Absorption 2.Fluorescence 6Jau 3.Phosphorescence 4.Vibrational relaxation 5.Intersystem crossing 6.Internal conversion 2 3 -Processes involving photons Radiationless transitions 10 10 第一节 光学分析法及其分类