METHOD FOR ESTIMATING DISTRIBUTION OF SAMPLE
First Claim
Patent Images
1. A determining method for a sensor having at least a first electrode and a second electrode, comprising the steps of:
- (a) providing a target sample flowing from the first electrode to the second electrode;
(b) applying a first DC voltage with a voltage value across the first electrode and the second electrode for a first duration to make a potential of the first electrode higher than a potential of the second electrode and to generate a first Cottrell current;
(c) removing the first DC voltage;
(d) applying a second DC voltage with a voltage value across the first electrode and the second electrode for a second duration to make the potential of the second electrode higher than the potential of the first electrode and to generate a second Cottrell current, wherein the respective voltage values of the first and the second DC voltages are equal;
(e) removing the second DC voltage;
(f) repeating steps (b) to (e) at least twice;
(g) adding up respective values of the first Cottrell currents and respective values of the second Cottrell currents respectively; and
(h) obtaining a ratio of a sum of the respective values of the first Cottrell currents over a sum of the respective values of the second Cottrell currents to determine a distribution of the target sample on the first and the second electrodes.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to a method for estimating a distribution of a sample flowed from a first electrode toward a second electrode of an electrochemical test strip. A working voltage is provided between the first electrode and the second electrode for obtaining a first and a second currents, where a ratio of the first current to the second current is applied to estimate the distribution of the sample on the first and the second electrodes and an effectiveness of a measurement of a target analyte of the sample.
9 Citations
20 Claims
-
1. A determining method for a sensor having at least a first electrode and a second electrode, comprising the steps of:
-
(a) providing a target sample flowing from the first electrode to the second electrode; (b) applying a first DC voltage with a voltage value across the first electrode and the second electrode for a first duration to make a potential of the first electrode higher than a potential of the second electrode and to generate a first Cottrell current; (c) removing the first DC voltage; (d) applying a second DC voltage with a voltage value across the first electrode and the second electrode for a second duration to make the potential of the second electrode higher than the potential of the first electrode and to generate a second Cottrell current, wherein the respective voltage values of the first and the second DC voltages are equal; (e) removing the second DC voltage; (f) repeating steps (b) to (e) at least twice; (g) adding up respective values of the first Cottrell currents and respective values of the second Cottrell currents respectively; and (h) obtaining a ratio of a sum of the respective values of the first Cottrell currents over a sum of the respective values of the second Cottrell currents to determine a distribution of the target sample on the first and the second electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A determining method for a distribution of a target sample, comprising the steps of:
-
(a) providing a first and a second electrodes; (b) providing the target sample flowing from the first electrode to the second electrode; (c) applying a first DC voltage having a voltage value across the first electrode and the second electrode to make a potential of the first electrode higher than a potential of the second electrode and to generate a first sensing current; (d) removing the first DC voltage; (e) applying a second DC voltage having the voltage value across the first electrode and the second electrode to make the potential of the second electrode higher than the potential of the first electrode and to generate a second sensing current; and (f) obtaining a ratio of a value of the first sensing current over a value of the second sensing current to determine the distribution of the target sample on the first and the second electrodes. - View Dependent Claims (17, 18, 19)
-
-
20. A determining method, comprising the steps of:
-
(a) providing a first and a second electrodes; (b) providing a target sample flowing from the first electrode to the second electrode; (c) making a potential of the first electrode higher than a potential of the second electrode and to generate a first sensing current; (d) making the potential of the second electrode higher than the potential of the first electrode and to generate a second sensing current; and (e) obtaining a ratio of a value of the first sensing current over a value of the second sensing current to determine the distribution of the target sample on the first and the second electrodes.
-
Specification