JPS643553A - Method and apparatus for detecting ph of high-temp. high-pressure aqueous solution - Google Patents
Method and apparatus for detecting ph of high-temp. high-pressure aqueous solutionInfo
- Publication number
- JPS643553A JPS643553A JP62158627A JP15862787A JPS643553A JP S643553 A JPS643553 A JP S643553A JP 62158627 A JP62158627 A JP 62158627A JP 15862787 A JP15862787 A JP 15862787A JP S643553 A JPS643553 A JP S643553A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- temp
- potentiostat
- soln
- semiconductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE:To make measurement by previously forming the calibration curve of a flat band potential Efb of a metal oxide having semiconductor-like properties and the pH of a soln. CONSTITUTION:An electrochemical cell 9 is constituted of a pH sensing electrode 6 consisting of the semiconductor of the metal oxide, a reference electrode 8 and a counter electrode 7 consisting of platinum. A potentiostat 10 is connected between the electrode 6 and the electrode 8 so as to apply a potential difference therebetween. A lock-in-amplifier 11 which allows arbitrary selection of the frequency for measuring AC resistance and the phase difference between the current and voltage by passing AC current between the electrode 6 and the counter electrode 7 is inserted between said electrodes. The potentiostat 10 is preferably connected to a commercially marketed personal computer for the purpose of taking in, analyzing, computing, displaying or printing of data. The pH of the high-temp. high-pressure aq. soln. is thus measured.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62158627A JPS643553A (en) | 1987-06-25 | 1987-06-25 | Method and apparatus for detecting ph of high-temp. high-pressure aqueous solution |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62158627A JPS643553A (en) | 1987-06-25 | 1987-06-25 | Method and apparatus for detecting ph of high-temp. high-pressure aqueous solution |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS643553A true JPS643553A (en) | 1989-01-09 |
Family
ID=15675840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62158627A Pending JPS643553A (en) | 1987-06-25 | 1987-06-25 | Method and apparatus for detecting ph of high-temp. high-pressure aqueous solution |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS643553A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102323316A (en) * | 2011-08-16 | 2012-01-18 | 浙江大学 | High-temperature high-pressure calibration device and calibration method of pH electrode |
US10702057B2 (en) | 2015-07-07 | 2020-07-07 | Colgate-Palmolive Company | Oral care implement and monofilament bristle for use with the same |
-
1987
- 1987-06-25 JP JP62158627A patent/JPS643553A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102323316A (en) * | 2011-08-16 | 2012-01-18 | 浙江大学 | High-temperature high-pressure calibration device and calibration method of pH electrode |
US10702057B2 (en) | 2015-07-07 | 2020-07-07 | Colgate-Palmolive Company | Oral care implement and monofilament bristle for use with the same |
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