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研究了银溶胶对2种卟啉化合物——5,10,15,20-四对羟基苯基卟啉(简称T(4-HP)P)和5-羟基苯基-10,15,20-三苯基卟啉(HPTPP)的荧光猝灭行为,在5.0×10~6mol/L的T(4-HP)P,HPTPP溶液中分别加入1.5×10~(-4)mol/L的银胶后,两者的荧光猝灭效率都达90%以上,通过荧光猝灭曲线求得这2种卟啉与银胶之间表观作用常数分别为3.16×10~4(mol/L)~(-1),2.79×10~4(mol/L)~(-1),文中还讨论了银胶对T(4-HP)P,HPTPP荧光猝灭过程的动力学及2种卟啉分子与银胶之间的作用机理.
The effects of silver sol on two porphyrin compounds, such as 5,10,15,20-tetrahydroxyphenyl porphyrin (T (4-HP) P) and 5-hydroxyphenyl- Fluorescence quenching of triphenylporphyrin (HPTPP) was carried out by adding 1.5 × 10 ~ (-4) mol / L silver colloid to 5.0 × 10 ~ 6 mol / L T , The fluorescence quenching efficiencies of both were above 90%. The apparent interaction constants between the two porphyrins and silver colloid were obtained by fluorescence quenching curves, and the apparent constants were 3.16 × 10 ~ 4 mol / L ~ -1) and 2.79 × 10 ~ 4 (mol / L) ~ (-1) respectively. The kinetics of fluorescence quenching of T (4-HP) P and HPTPP by silver colloids and the interaction between two porphyrin molecules and The mechanism of action between silver plastic.