JPS6465441A - Instrument for measuring electrolyte concentration - Google Patents
Instrument for measuring electrolyte concentrationInfo
- Publication number
- JPS6465441A JPS6465441A JP22031487A JP22031487A JPS6465441A JP S6465441 A JPS6465441 A JP S6465441A JP 22031487 A JP22031487 A JP 22031487A JP 22031487 A JP22031487 A JP 22031487A JP S6465441 A JPS6465441 A JP S6465441A
- Authority
- JP
- Japan
- Prior art keywords
- potential level
- potential
- measurement
- memory
- soln
- 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
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
PURPOSE:To detect early an abnormal state by measuring the potential level of an electrolyte soln., then comparing the potential levels of the calibration liquid before and after this measurement with each other. CONSTITUTION:The liquid (sample soln. or calibration liquid) which is to be measured and is housed in reaction tube 2 is sucked by a suction pump 3 and is supplied to an ion selective electrode 1. The concn. (potential level) of the calibration liquid measured by the electrode 1 is applied as electromotive force to a preampifier 4 to be amplified and is converted by an AD converter 5 to a digital signal which is then controlled by a CPU 6 and is stored in a memory 7. The potential level of the sample soln. is similarly measured by the electrode 1 and this data is stored in the memory 7. The data of the potential levels before and after the measurement are taken out of the memory 7 after the measurement of the potential level of the sample soln. The two potential levels are compared by the CPU 6 and the result of the comparison is outputted to an output device 8.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22031487A JPS6465441A (en) | 1987-09-04 | 1987-09-04 | Instrument for measuring electrolyte concentration |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22031487A JPS6465441A (en) | 1987-09-04 | 1987-09-04 | Instrument for measuring electrolyte concentration |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6465441A true JPS6465441A (en) | 1989-03-10 |
Family
ID=16749199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22031487A Pending JPS6465441A (en) | 1987-09-04 | 1987-09-04 | Instrument for measuring electrolyte concentration |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6465441A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008133121A1 (en) * | 2007-04-17 | 2008-11-06 | Arkray, Inc. | Method for measuring substrate concentration and apparatus for measuring substrate concentration |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6131951A (en) * | 1984-07-25 | 1986-02-14 | Horiba Ltd | Concentration meter with abnormality judging function |
-
1987
- 1987-09-04 JP JP22031487A patent/JPS6465441A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6131951A (en) * | 1984-07-25 | 1986-02-14 | Horiba Ltd | Concentration meter with abnormality judging function |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008133121A1 (en) * | 2007-04-17 | 2008-11-06 | Arkray, Inc. | Method for measuring substrate concentration and apparatus for measuring substrate concentration |
JPWO2008133121A1 (en) * | 2007-04-17 | 2010-07-22 | アークレイ株式会社 | Substrate concentration measuring method and substrate concentration measuring apparatus |
JP5054765B2 (en) * | 2007-04-17 | 2012-10-24 | アークレイ株式会社 | Substrate concentration measuring method and substrate concentration measuring apparatus |
US8535510B2 (en) | 2007-04-17 | 2013-09-17 | Arkray, Inc. | Method for measuring substrate concentration and apparatus for measuring substrate concentration |
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