四(4-溴)苯基铂卟啉荧光猝灭氧传感器的研究  

Response Characteristic of Thin Film Oxygen Sensor: Pt-T(p-Br)PP in PVC Film

作　　者：肖丹[1] 莫远尧[1] 王柯敏[1] 谭蔚泓[1] 赵莉[1] 鲁勖琳[1] 黄伟国[2] 

机构地区：[1]湖南大学化学生物传感与计量学国家重点实验室,湖南长沙410082 [2]香港浸会大学化学系

出　　处：《湖南大学学报（自然科学版）》2004年第2期24-27,共4页Journal of Hunan University:Natural Sciences

基　　金：教育部骨干教师基金资助 [教育司 ( 2 0 0 0 ) 65 ]

摘　　要：研究了以PVC膜为支持体系 ,以四 (4 -溴 )苯基铂卟啉为敏感物质的荧光猝灭氧传感器对分子氧的响应特性 .该氧传感器敏感膜的最大激发波长为 4 0 2nm ,最大发射波长为 6 6 4nm ,分子氧可以有效地猝灭四 (4 -溴 )苯基铂卟啉敏感膜的荧光 .在 10 0 %N2 和10 0 %O2 中的荧光强度之比大于 4 0倍 ;在N2 饱和和空气饱和的水中荧光强度之比大于 14倍 ,有较高的灵敏度 .其寿命大于 3个月 .This paper presents a new fluorescence oxygen sensor with Pt-T(p-Br)PP as its sensing material and PVC polymer as its support system. When the maximal activated wavelength of the sensitivity film of this sensor is 402 nm and the maximal emitting wavelength is 664 nm, molecular oxygen can effectively quench the fluorescence from the Pt-T(p-Br)PP sensitivity film. The ratio of fluorescence intensity in 100% N 2 and 100% O 2 is 40 times higher and the ratio of the fluorescence intensity in water with saturated N 2 and air is 15 times higher, and the sensor has a high sensitivity with a lifetime of over 3 months.

关 键 词：光化学传感器 分子氧 铂卟啉 

分 类 号：Q659.32[生物学—生物物理学]