| abstract |
An optical probe and a method of monitoring analyte concentration, or the partial pressure of a gas in a sample are described. The optical probe contains at least two luminescent (fluorescent or phosphorescent) molecules whose luminescence is quenched by the analyte being measured. The absorption spectrum of each type of luminescent molecule overlap with the absorption spectrum of each of the other molecules, and the emission spectrum of each molecule overlaps with the emission spectrum of each of the other molecules. The partial pressure of a gas or concentration of an analyte is measured using the quenching of the luminescence of said molecules by the analyte. |