PROCESS FOR DETECTING EVANESCENTLY EXCITED LUMINESCENCE

摘要

The invention relates to a process for detecting luminescence with a planar dieletric optical sensor platform consisting of a transparent substrate (a) to which a thin transparent waveguiding layer (b) is applied, which sensor platform is provided with a grating for the inputcoupling of the excitation light and the refractive index of said substrate (a) is lower than the refractive index of the waveguiding layer (b), by bringing a liquid sample into contact with the layer (b), and measuring the luminescence produced by substances having luminescence properties in the sample, or by substances having luminescence properties immobilised on the layer (b), optoelectronically. The invention also relates to the use of the process in quantitative affinity sensing and to the use thereof for the quantitative determination of luminescent constituents in optically turbid solutions.