Method And Apparatus FOr Measuring Specific Component
First Claim
1. A method for measuring a concentration of a specific component, comprising:
- a first step of supplying a sample fluid to a reaction field holding a reagent;
a second step of obtaining a single or a plurality of electric currents for correction, through a measurement of electric current made once or a plurality of times without applying a voltage to the reaction field;
a third step of obtaining a single or a plurality of electric currents for calculation, through a measurement of electric current made once or a plurality of times while applying a voltage to the reaction field; and
a fourth step of calculating a concentration of a specific component in the sample fluid, based on the single or the plurality of values for correction and the single or the plurality of values for calculation.
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Abstract
The present invention relates to a method for measuring a concentration of a specific component. The method comprises: a first step of supplying a sample fluid to a reaction field holding a reagent; a second step of obtaining a single or a plurality of electric currents for correction, through a measurement of electric current made once or a plurality of times (S6) without applying a voltage to the reaction field (S5); a third step of obtaining a single or a plurality of electric currents for calculation, through a measurement of electric current made once or a plurality of times (S11) while applying a voltage to the reaction field (S9); and a fourth step of calculating a concentration of a specific component in the sample fluid, based on the single or the plurality of values for correction and the single or the plurality of values for calculation (S14). Preferably, the fourth step reflects an average or cumulative value of the electric currents for correction on a calculated result of the concentration of the specific component. The present invention also relates to a concentration measuring apparatus performing the above-described measuring method.
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Citations
11 Claims
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1. A method for measuring a concentration of a specific component, comprising:
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a first step of supplying a sample fluid to a reaction field holding a reagent;
a second step of obtaining a single or a plurality of electric currents for correction, through a measurement of electric current made once or a plurality of times without applying a voltage to the reaction field;
a third step of obtaining a single or a plurality of electric currents for calculation, through a measurement of electric current made once or a plurality of times while applying a voltage to the reaction field; and
a fourth step of calculating a concentration of a specific component in the sample fluid, based on the single or the plurality of values for correction and the single or the plurality of values for calculation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A concentration measuring apparatus for measurement of a concentration of a specific component in a sample fluid by using a measuring tool for holding the sample fluid and providing a reaction field,
the measuring tool including a first and a second electrodes for application of a voltage to the reaction field, the apparatus comprising: -
a voltage applier for application of a voltage to the reaction field;
a controller for selection from an energized state in which the voltage is applied to the reaction field and a de-energized state in which a voltage is not applied to the reaction field;
an electric current measurer for measurement of an electric current for calculation, by using the first and the second electrodes; and
an arithmetic processor for calculation of a concentration of the specific component based on the electric current for calculation, the controller selecting the de-energized state for a specific duration of time after a supply of the sample fluid to the reaction field, and selecting the energizing state for at least a predetermined period of time after passage of the specific duration of time, the electric current measurer obtaining a single or a plurality of electric currents for correction through a measurement of electric current made once or a plurality of times during the specific duration of time, the arithmetic processor calculating the concentration of the specific component while taking into account the single or the plurality of electric currents for correction. - View Dependent Claims (11)
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Specification