Biosensor

G - Physics – 01 – N

Patent

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Details

G01N 27/327 (2006.01) G01N 27/416 (2006.01) G01N 33/543 (2006.01)

Patent

CA 2658023

In a biosensor of the present invention, BSA is contained in a reagent layer including a reagent which reacts specifically with glucose, and the glucose concentration in whole blood as a sample solution is electrochemically measured. When the sensor response characteristics when whole blood is used as the sample solution are measured, the influence by hematocrit to the sensor response characteristics is reduced according to the additive amount of BSA when the hematocrit value is in the range of 25% and below, while no BSA addition effect is recognized in the sensor response characteristics when the hematocrit value is in the range of 25 to 65%. Thereby, the influences by hematocrit and temperature can be reduced, and thus highly precise measurement can be performed.

L'invention concerne un biocapteur dans lequel SAB (sérum-albumine bovin) est ajouté à une couche de réactif contenant une enzyme réagissant spécifiquement au glucose de manière à mesurer électrochimiquement la concentration du glucose dans le sang entier employé comme échantillon. Lorsqu'on détermine les propriétés de réponse du capteur en utilisant le sang entier comme échantillon, l'addition de SAB n'a pas d'effet sur les propriétés de réponse du capteur, à des taux d'hématocrites compris entre 25 et 65 %, l'effet des hématocrites sur les propriétés de réponse du capteur étant atténué en fonction de la quantité de SAB ajouté, à des taux d'hématocrites inférieurs ou égaux à 25 %. Il est ainsi possible de réduire les effets du taux d'hématocrites et de la température et d'effectuer des mesures extrêmement précises.

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