Photoluminescent Oxygen Probe with Reduced Cross Sensitivity to Humidity

摘要

An oxygen-sensitive probe having reduced cross-sensitivity to humidity and methods of manufacturing and using such probes to measure oxygen concentrations within an enclosed space. The probe includes a thin film of an oxygen-sensitive photoluminescent dye on a first major surface of a microporous wettable polyolefin support layer. The dye is preferably a solid state composition comprising the oxygen-sensitive photoluminescent dye embedded within an oxygen-permeable hydrophobic polymer matrix.