Method and apparatus for determining an analyte...

G - Physics – 01 – N

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G01N 37/00 (2006.01) A61B 5/155 (2006.01) G01N 21/25 (2006.01) G01N 23/06 (2006.01) G01N 33/49 (2006.01) G01N 33/66 (2006.01)

Patent

CA 2584162

A method and apparatus are described that permit an analyte concentration to be estimated from a measurement in the presence of compounds that interfere with the measurement. The method reduces the error in the analyte concentration in the presence of interferents. The method includes the use of a set of measurements obtained for a large population having a range of know analyte and interfering compound concentrations. From a sample measurement, which may or may not be one of the population, likely present interferents are identified, and a calibration vector is calculated.

L'invention concerne un procédé et un appareil qui permettent à une concentration de substance à analyser d'être estimée à partir d'une mesure en présence de composés qui interfèrent avec ladite mesure. Le procédé de l'invention permet de réduire les erreurs commises dans l'estimation de la concentration de substance à analyser en présence des substances interférentes. Ledit procédé consiste à utiliser un ensemble de mesures obtenues pour une population importante présentant une plage donnée de substances à analyser connues et des concentrations de composés interférents. A partir d'une mesure d'échantillon, qui peut faire partie ou pas de ladite population, des substances interférentes susceptibles d'être présentes sont identifiées, et un vecteur d'étalonnage est calculé.

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