Sauerstoffsensitives Einschichtsystem und Verfahren zur Anordnung des Systems

摘要

The invention relates to a process for producing a sensitive single-layer system for the optical determination of a concentration of an analyte, e.g. oxygen, in which the analyte can be examined in a liquid or gaseous aggregate state or in solution, by absorption, luminescence or luninescence washing of an indicator sensitive to the analyte which is preferably permanently immobilised in the optical beam path. The sensitive single-layer system is designed thereby to have a reproducible and very short response. To this end indicators are adsorbed on a filler, whereafter a mixture is made with a matrix material permeable to the analyte to be determined. The mixture is then applied under pressure to a substrate and the layer thickness is determined by the pressure applied. The sensitive layer applied is polymerised, polycondensed or cured and also homogenised by soaking in a fluorescence indicator solution.