| 摘要 |
Measuring device for the determination of the concentrations of inorganic and organic compounds in a sample, with a sensor which is to be brought into contact with the sample and which contains a fluorescence-optical indicator which after excitation via an excitation light source fluoresces as a function of the present concentration of the inorganic or organic compound to be detected. The measuring device has an arrangement for measuring and analyzing the incident radiation and the re-emitted fluorescence light. The measuring device contains a sensor element which is to be brought into contact with the sample and consists of a polymer matrix which is prepared from a) a matrix component which is derived from one or more units of the formula I <IMAGE> where R<1>- is hydrogen, deuterium or methyl; R<2>- and R<3>-, independently of one another, are hydrogen, deuterium or methyl, and the degree of polymerization, n is an integer in the range from 80 to 2500, preferably from 200 to 2000; b) a dye component which is immobilized covalently on the acyl chloride groups of the matrix component and c) one or more swelling components which are bound covalently to the remaining free acyl chloride groups of the matrix component. <IMAGE> |
