ELECTRODE SYSTEM AND METHOD FOR CALCULATING CHARACTER VALUES OF SOLUTION USING THE SAME

• US 20130092560A1
• Filed: 10/12/2012
• Published: 04/18/2013
• Est. Priority Date: 10/14/2011
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Yong Soo, Jeong, Yong Won, Ko, Young Chul
• Granted Patent: US 9,297,781 B2
• Time in Patent Office: Days
• US Class Current: 205/787.5
• CPC Class Codes: G01N 27/4168 Oxidation-reduction potential, e.g. for chlorination of water water analysis G01N33/18

Abstract

Disclosed is an electrode system capable of more accurately measuring properties of solutions using a porous platinum electrode. The electrode system includes a low porosity platinum electrode in which platinum is deposited in a porous form on the surface of an electrode, and a high porosity platinum electrode having a higher roughness factor than the low

Claims

1. An electrode system comprising:

a low porosity platinum electrode in which platinum is deposited in a porous form on the surface of an electrode; and

a high porosity platinum electrode having a higher roughness factor than the low porosity platinum electrode.

2. The electrode system according to claim 1, wherein the low porosity platinum electrode has a roughness factor of about 1 to about 50 and the high porosity platinum electrode has a roughness factor of about 50 to about 400.

3. The electrode system according to claim 1, further comprising:

an additional reference electrode.

4. The electrode system according to claim 2, wherein the reference electrode is made of gold or silver.

5. The electrode system according to claim 3, wherein the low porosity platinum electrode and the high porosity platinum electrode are working electrodes with respect to the reference electrode and the low porosity platinum electrode is an oxidation-reduction potential (ORP) measurement electrode and the high porosity platinum electrode is a pH measurement electrode.

6. The electrode system according to claim 1, wherein the low porosity platinum electrode is a working electrode that measures an oxidation-reduction potential of a solution using the high porosity platinum electrode as a reference electrode.

7. The electrode system according to claim 6, wherein the oxidation-reduction potential calculated by the low porosity platinum electrode using the high porosity platinum electrode as a reference electrode is an oxidation-reduction potential based on a dissolved gas present in the solution.

8. The electrode system according to claim 7, wherein the solution is reducing water in which hydrogen gas is dissolved and the dissolved gas comprises a hydrogen gas.

9. A method for calculating a character value of a solution using an electrode system comprising a high porosity platinum electrode and a low porosity platinum electrode, comprising:

calculating an oxidation-reduction potential of a solution from the low porosity platinum electrode using the high porosity platinum electrode as a reference electrode; and

calculating a concentration of dissolved gas in the solution from the calculated oxidation-reduction potential of the solution.

10. The method according to claim 9, wherein the low porosity platinum electrode has a roughness factor of about 1 to about 50 and the high porosity platinum electrode has a roughness factor of about 50 to about 400.

11. The method according to claim 9, wherein the oxidation-reduction potential calculated by the low porosity platinum electrode using the high porosity platinum electrode as a reference electrode is an oxidation-reduction potential based on a dissolved gas present in the solution.

12. The method according to claim 9, wherein the electrode system further comprises an additional reference electrode.

13. The method according to claim 9, wherein the reference electrode is made of gold or silver.

14. The method according to claim 12, wherein the oxidation-reduction potential of the solution is calculated using the low porosity platinum electrode as the working electrode with respect to the additional reference electrode;

and

pH is calculated using the high porosity platinum electrode as the working electrode with respect to the additional reference electrode.

15. The method according to claim 9, wherein the solution is reducing water in which hydrogen gas is dissolved and the dissolved gas comprises a hydrogen gas.

16. The method according to claim 9, wherein the character value of the solution comprises pH and oxidation-reduction potential of the solution, and concentration of dissolved gas in the solution.

17. An electrode system comprising:

an electrode unit comprising a reference electrode and a platinum working electrode;

a power unit to apply a voltage to the electrode unit;

a readout device to calculate a character value of a solution through an output value of the electrode unit;

a relay to electrically connect the electrode unit to the power unit or the readout device; and

a control unit to control the relay such that the electrode unit is electrically connected to the power unit, based on the output value of the readout device.

18. The electrode system according to claim 17, wherein the control unit controls the relay such that the electrode unit is electrically connected to the power unit, when the output value of the readout device exceeds a predetermined reference value.

19. The electrode system according to claim 17, wherein the control unit controls the relay such that the electrode unit is electrically connected to the power unit at a predetermined interval.

20. The electrode system according to claim 17, wherein the power unit applies a positive voltage to the platinum working electrode when the power unit is electrically connected to the electrode unit.

21. The electrode system according to claim 20, wherein the power unit applies a voltage of about 0V to about 2V to the platinum working electrode.

22. The electrode system according to claim 17, wherein the platinum working electrode comprises a low porosity platinum electrode and a high porosity platinum electrode.