Claims
- 1. A method for determining the concentrations of glucose, urea and/or amino acids in the presence of each other in a solution by means of an electrochemical sensor comprising a membrane-covered platinum test electrode and a counter electrode, comprising:
- contacting the platinum test electrode with a physiological solution which contains glucose, urea and amino acids;
- impressing a potential varying with time on the platinum test electrode in potential steps within a potential interval;
- superimposing AC voltage of predetermined amplitude and predetermined different frequencies on the potential during at least one potential step;
- establishing the real and imaginary portions of the impedance during said at least one potential step; and
- determining the concentration of glucose, urea and/or amino acids from the real and imaginary portions of the impedance established during said at least one potential step.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3228542 |
Jul 1982 |
DEX |
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Parent Case Info
This is a continuation of application Ser. No. 515,759 filed July 21, 1983, abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4340458 |
Lerner et al. |
Jul 1982 |
|
4366033 |
Richter et al. |
Dec 1982 |
|
Non-Patent Literature Citations (1)
Entry |
Bard et al., "Electrochem. Methods Fund. and Appl.", NY, J. Wiley & Son, 1980, Chapter 9, pp. 316-397. |
Continuations (1)
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Number |
Date |
Country |
Parent |
515759 |
Jul 1983 |
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