Method and Apparatus for Assay of Electrochemical Properties
First Claim
Patent Images
1. A method for determining the extent of electrode fouling in an implantable electrochemical sensor comprising at least two electrodes, the extent of electrode fouling being determined from effective electrode area, said method comprising:
- applying a potential stimulus to the electrodes to generate a current signal, the potential stimulus comprising a time-varying potential component superimposed on a constant potential component;
isolating a time-varying current component from the current signal;
determining an imaginary part of the time-varying current component, the magnitude of the imaginary part of the time-varying current component being linearly related to the effective electrode area; and
determining the extent of electrode fouling from the determined magnitude of the imaginary part of the time-varying current component.
3 Assignments
0 Petitions
Accused Products
Abstract
A method for monitoring a select analyte in a sample in an electrochemical system. The method includes applying to the electrochemical system a time-varying potential superimposed on a DC potential to generate a signal; and discerning from the signal a contribution from the select analyte by resolving an estimation equation based on a Faradaic signal component and a nonfaradaic signal component.
1 Citation
8 Claims
-
1. A method for determining the extent of electrode fouling in an implantable electrochemical sensor comprising at least two electrodes, the extent of electrode fouling being determined from effective electrode area, said method comprising:
-
applying a potential stimulus to the electrodes to generate a current signal, the potential stimulus comprising a time-varying potential component superimposed on a constant potential component; isolating a time-varying current component from the current signal; determining an imaginary part of the time-varying current component, the magnitude of the imaginary part of the time-varying current component being linearly related to the effective electrode area; and determining the extent of electrode fouling from the determined magnitude of the imaginary part of the time-varying current component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
Specification