SENSOR FOR LUMINESCENCE OPTICAL DETERMINATION OF AN ANALYTE

摘要

The invention relates to an optical/chemical sensor which operates according to the FRET principle and which comprises an acceptor (a chromophore or luminophore) reacting with an analyte contained in a test medium, and a donor (luminophore). Said sensor is characterised in that the acceptor and the donor are present in separate chemical phases. The phase containing the donor is essentially impermeable with respect to in the test medium or the components in the test medium influencing the luminescence properties of the luminophore. The invention also relates to a method qualitative and/or quantitative determination of at least one analyte or a component of a gaseous or liquid measuring medium according to the FRET principle, characterised by the use of the inventive sensor.