Method and material for measurement of oxygen concentration

Details Method and material for measurement of oxygen concentration Method and material for measurement of oxygen concentration

1989-04-26

1992-03-10

Hill, Jr., Robert J.

Chemistry: analytical and immunological testing

Optical result

With fluorescence or luminescence

422 8207, 422 208, 422 86, 436 68, 436136, 436138, 436178, G01N 2164

Patent

active

050949594

ABSTRACT:
The analyte sensing system utilizes a sensor indicator which may be a perlyene derivative, coronene, or naphtho [8,1,2-abc] coronene in an analyte permeable silicone matrix. The matrix is irradiated with light of a specific wavelength, and fluorescence emissions of the dye indicator is measured over two different emission spectra having different sensitivities to the analyte. The emission spectrum which is less sensitive to quenching by the analyte can be used as a reference for determining the analyte concentration based upon a ratio of the intensities of the different emission spectra.

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Seitz, et al., "Luminescence Ratio Indicators for Oxygen", Anal. Chem., vol. 59, pp. 279-283, 1987.

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