摘要
金属有机络合物被波长合适的光激发可发射荧光或磷光 ,这种发射光能被氧气猝灭 .现合成了 13种金属有机络合物 ,详尽地研究了它们的光谱特性及氧猝灭特性 .总结了关联氧浓度 (分压 )和发射光强度关系的数学模型 .从中筛选了两种灵敏度高、测量范围宽、光学稳定性好的氧感应指示剂 ,即 [Ru(bathophen) 3](ClO4 ) 2 和Pt(TFPP) .用[Ru(bathophen) 3](ClO4 ) 2 _Cab—O—Sil_Silicone膜和Pt(TFPP)_Silicone膜进行猝灭实验 ,证明改进的Stern_Volmer方程计算结果与猝灭数据非常一致 ,可以作为传感器的标定方程 .
Some metallorganic complexes can emit fluorescence or phosphorescence when excited by light with suitable wavelength.Usually,the fluorescence and phosphorescence can be quenched by oxygen.The basic principle of sensing oxygen by metallorganic complexes has been described and typical mathematical models for correlation of oxygen concentration with luminescent intensity have been summarized in this paper.13 kinds of metallorganic complexes are synthesized.Their spectral characteristics and quenching performances by oxygen are studied in detail.Two kinds of metallorganic complexes,namely [Ru(bathophen) 3](ClO 4) 2 and Pt(TFPP),are selected as oxygen_sensing indicator. It is shown that the results calculated by modified Stern_Volmer equations were fit with the quenching data.They have good oxygen_sensing properties, such as high sensitivity,suitable measurable range and good photostability.Modified Stern_Volmer equations can be used as the calibration equation of oxygen sensor.
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2001年第1期51-55,共5页
Journal of South China University of Technology(Natural Science Edition)
