DETERMINATION OF THE REAL ELECTROCHEMICAL SURFACE AREAS OF SCREEN PRINTED ELECTRODES
First Claim
Patent Images
1. A method for sensing arrival and monitoring flow of a sample in a testing device, comprising:
- providing a meter relay for sensing a sample arrival in the testing device that includes three electrodes for measurement of an analyte in a sample that includes a switch located in an analog or digital part of a circuit, the testing device including a reference electrode lead, a counter electrode lead, and a working electrode lead;
in a start condition having a counter relay open;
using first and second electrodes in an auto-trigger function;
starting a measurement when the sample wets the second electrode until a current reaches a threshold level of from 50 to 2,000 Na;
closing counter relays of the testing device when a threshold level is reached.
0 Assignments
0 Petitions
Accused Products
Abstract
A method is provided for determining a real electrochemical surface area of a working electrode (WE) of a screen printed sensor. A concentration of a mediator incorporated in a WE paste is determined. The diffusion coefficient of the mediator is then ascertained. A final real electrochemical surface area of the WE is then made.
-
Citations
14 Claims
-
1. A method for sensing arrival and monitoring flow of a sample in a testing device, comprising:
-
providing a meter relay for sensing a sample arrival in the testing device that includes three electrodes for measurement of an analyte in a sample that includes a switch located in an analog or digital part of a circuit, the testing device including a reference electrode lead, a counter electrode lead, and a working electrode lead; in a start condition having a counter relay open; using first and second electrodes in an auto-trigger function; starting a measurement when the sample wets the second electrode until a current reaches a threshold level of from 50 to 2,000 Na; closing counter relays of the testing device when a threshold level is reached. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. The method of claim 14, wherein the threshold is at least one minute.
Specification