申请人:MINNESOTA MINING AND MANUFACTURING COMPANY
公开号:EP0539967A1
公开(公告)日:1993-05-05
A sensor for measuring the concentration of an analyte in a medium is disclosed. In one embodiment, the sensor comprises a sensing element including a matrix material and, covalently bonded thereto, one or more monomeric indicator components each of which is capable of providing a first emitted signal of a given wavelength in response to being exposed to an excitation signal, the sensing element being capable of providing a second emitted signal having a longer wavelength than the first emitted signal or signals in response to being exposed to the excitation signal, the second emitted signal being provided by an excimer component or a mixed excimer component produced in the sensing element from the monomeric indicator component or components and being dependent on the concentration of the analyte in the medium to a greater extent than the first emitted signal or signals; an excitation assembly positioned and adapted to provide the excitation signal to the sensing element; and a detector assembly positioned and adapted to detect the second emitted signal. Preferably, a processor assembly is positioned and adapted to analyze the second emitted signal in determining the concentration of the analyte in the medium.
本发明公开了一种用于测量介质中分析物浓度的传感器。在一个实施方案中,该传感器包括一个传感元件,该传感元件包括基体材料和与之共价键合的一个或多个单体指示剂成分,每个单体指示剂成分都能在暴露于激发信号时提供给定波长的第一发射信号,传感元件能在暴露于激发信号时提供比第一发射信号波长更长的第二发射信号、第二发射信号由传感元件中由单体指示剂成分产生的准分子成分或混合准分子成分提供,并且比第一发射信号更依赖于介质中分析物的浓度;激发组件,其位置和适配性可向传感元件提供激发信号;以及检测器组件,其位置和适配性可检测第二发射信号。优选地,处理器组件被设置并适于分析第二发射信号,以确定介质中分析物的浓度。