| 摘要 |
<p>An oxygen monitor which comprises a substrate provided with an oxygen-permeable film comprising a polymeric vehicle and at least one luminescent compound immobilised within the polymeric vehicle. The luminescent compound emits luminescence upon irradiation of the film with visible light, the luminescence being quenched by any molecular oxygen present in the film. The oxygen monitor can be used for measuring oxygen by locating the monitor in a position for receiving oxygen from an oxygen-containing medium, irradiating the oxygen permeable film of the monitor with light having a wavelength of at least 400 nm and monitoring luminescence emitted by the luminescent compound or compounds present in the oxygen-permeable film.</p> |
