Concentration determination in a diffusion barrier layer

G - Physics – 01 – N

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G01N 27/30 (2006.01) C12Q 1/00 (2006.01) G01N 33/487 (2006.01)

Patent

CA 2583396

The present invention relates to improved electrochemical biosensor strips and methods for determining the concentration of an analyte in a sample. By selectively measuring a measurable species residing in a diffusion barrier layer, to the substantial exclusion of the measurable species residing exterior to the diffusion barrier layer, measurement errors introduced by sample constituents, such as red blood cells, and manufacturing variances may be reduced.

Cette invention a trait à des biocapteurs électrochimiques améliorés en forme de bande et à des procédés pour déterminer la concentration d'un analyte dans un échantillon. En mesurant ponctuellement des espèces mesurables qui se trouvent dans une couche barrière de diffusion, en excluant sensiblement les espèces mesurables qui se trouvent à l'extérieur de la couche barrière de diffusion, il est possible de réduire les erreurs de mesure induites par des constituants de l'échantillon, tels que les globules rouges, et les variations de fabrication.

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