ELECTROCHEMICAL DATA REJECTION METHODOLOGY
First Claim
1. A method for determining the concentration of an analyte in a sample which comprises:
- a) performing an electrochemical test comprising;
(i) contacting the sample with an electrochemical cell comprising at least two electrodes; and
(ii) obtaining at least one group of three or more measurements of an electrochemical parameter from the cell, wherein each measurement in each at least one group is obtained at a different time;
b) deriving from said at least one group of three or more measurements a single value that is indicative of the time-dependent behavior of the measured parameter;
c) comparing the single value indicative of the time-dependent behavior of the measured parameter with a pre-determined range of acceptable time-dependent behaviors;
d) determining whether the test is acceptable based on the result of said comparison; and
e) determining the concentration of the analyte from the measurements obtained from the acceptable test or acceptable tests.
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Accused Products
Abstract
A method is provided for determining the concentration of an analyte in a sample which comprises: a) performing an electrochemical test comprising: (i) contacting the sample with an electrochemical cell comprising at least two electrodes; and (ii) obtaining at least one group of three or more measurements of an electrochemical parameter from the cell, wherein each measurement in each at least one group is obtained at a different time; b) deriving from said at least one group of three or more measurements a single value that is indicative of the time-dependent behavior of the measured parameter; c) comparing the single value indicative of the time-dependent behavior of the measured parameter with a pre-determined range of acceptable time-dependent behaviors; d) determining whether the test is acceptable based on the result of said comparison; e) optionally repeating the above-mentioned steps; and 0 determining the concentration of the analyte from the measurements obtained from the acceptable test or acceptable tests. Also provided is a device on which such a method can be performed and a computer program suitable for performing the data rejection methodology comprised in the method.
14 Citations
17 Claims
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1. A method for determining the concentration of an analyte in a sample which comprises:
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a) performing an electrochemical test comprising;
(i) contacting the sample with an electrochemical cell comprising at least two electrodes; and
(ii) obtaining at least one group of three or more measurements of an electrochemical parameter from the cell, wherein each measurement in each at least one group is obtained at a different time;b) deriving from said at least one group of three or more measurements a single value that is indicative of the time-dependent behavior of the measured parameter; c) comparing the single value indicative of the time-dependent behavior of the measured parameter with a pre-determined range of acceptable time-dependent behaviors; d) determining whether the test is acceptable based on the result of said comparison; and e) determining the concentration of the analyte from the measurements obtained from the acceptable test or acceptable tests. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A computer program for establishing whether a test to determine the concentration of an analyte in a sample is acceptable, the program comprising code means that, when executed by one or more data-processing devices, instructs the data-processing device to perform a method comprising:
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a) receiving measurement data representing at least one group of three or more measurements of an electrochemical parameter obtained from an electrochemical cell, wherein each measurement in each at least one group is obtained at a different time; b) deriving from the measurement data a single value indicative of the time-dependent behavior of the measured parameter; c) comparing the single value indicative of the time-dependent behavior of the measured parameter with a pre-determined range of acceptable time-dependent behaviors; and d) determining whether the test is acceptable based on the result of said comparison.
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17. An electrochemical device comprising:
- an electrochemical cell comprising at least two electrodes;
a voltage source arranged to selectively apply a voltage across the cell;
a measurement circuit arranged to obtain measurements of an electrochemical parameter on the cell;
a calculating device arranged to calculate from at least one group of three or more measurements obtained by the measurement circuit, wherein each measurement in each at least one group is obtained at a different time, a single value indicative of the time-dependent behavior of the measured parameter; and
a comparator arranged to compare the single value indicative of the time-dependent behavior of the measured parameter with a pre-determined range of acceptable time-dependent behaviors.
- an electrochemical cell comprising at least two electrodes;
Specification