Method for the determination of the concentration of a...

G - Physics – 01 – N

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G01N 21/64 (2006.01) G01N 21/27 (2006.01)

Patent

CA 2599254

The invention relates to a method for the determination of the concentration of a non-volatile analyte in an aqueous sample medium, with the use of an optical sensor which contains a luminescent dye and is calibrated at the user site by means of a single-point- calibration. To enable the user to completely dispense with all calibration media a luminescence measurement value is obtained at the user site with the sensor in contact with the aqueous or bloodlike sample medium, which value is referenced to the relative characteristic obtained at the factory site and to a measured dry calibration value obtained at the user site, the concentration of the non-volatile analyte being deduced from these data.

L'invention concerne un procédé pour déterminer la concentration d'un analyte non volatil dans un milieu d'échantillon aqueux, avec l'utilisation d'un capteur optique qui contient un colorant luminescent et qui est étalonné dans un site utilisateur au moyen d'un étalonnage à point unique. Pour permettre à l'utilisateur de distribuer complètement tous les supports d'étalonnage, une valeur de mesure de luminescence est obtenue sur un site utilisateur avec le capteur en contact avec le milieu échantillon aqueux ou similaire au sang, la valeur étant référencée par rapport à la caractéristiques relative obtenues sur un site de fabrication, et pour une valeur d'étalonnage à sec mesurée, obtenue sur un site utilisateur, la concentration de l'analyte non volatil est déduite à partir de ces données.

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