System and method for analyte measurement using ac excitation

Details System and method for analyte measurement using ac excitation System and method for analyte measurement using ac excitation

G - Physics

01

N

G01N 33/487 (2006.01) G01N 27/02 (2006.01)

Patent

CA 2529668

A method of measuring an analyte in a biological fluid comprises applying an excitation signal having a DC component and an AC component. The AC and DC responses are measured; a corrected DC response is determined using the AC response; and a concentration of the analyte is determined based upon the corrected DC response. Other methods and devices are disclosed.

Ce procédé de mesure d'une substance à analyser présente dans un liquide biologique consiste à appliquer signal d'excitation présentant deux composantes, l'une en courant continu, l'autre en courant alternatif. On mesure les réponses en termes de courant continu et de courant alternatif. On détermine une réponse en courant continu corrigée à partir de la réponse en courant alternatif, puis la concentration de la substance à analyser en fonction de la réponse en courant continu corrigée. Sont également décrits d'autres procédés et dispositifs.

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