JPS56155846A - Method and device for measuring ion concentration - Google Patents
Method and device for measuring ion concentrationInfo
- Publication number
- JPS56155846A JPS56155846A JP5631480A JP5631480A JPS56155846A JP S56155846 A JPS56155846 A JP S56155846A JP 5631480 A JP5631480 A JP 5631480A JP 5631480 A JP5631480 A JP 5631480A JP S56155846 A JPS56155846 A JP S56155846A
- Authority
- JP
- Japan
- Prior art keywords
- soln
- chamber
- electrodes
- potential difference
- specimen
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/4035—Combination of a single ion-sensing electrode and a single reference electrode
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
PURPOSE:To measure the ions in a small amount of specimen liquid such as blood with good responsiveness by inserting reference electrodes into the respective chambers of a measuring cell segmented to a reference soln. chamber and a specimen soln. chamber via an ion selective membrane, and providing an interelectrode potential difference measuring system. CONSTITUTION:A selective membrane 2 for the ions to be measured is provided between a reference soln. chamber 4 and a specimen soln. chamber 5, and respective soln. lead-in tubes 6, 7 and discharge tubes 8, 9 are provided to the respective chambers 4, 5. The reference electrodes 12, 13 of the same kind are inserted into the chambers 4, 5, and the electrode 12 is connected to a recording mechanism 15 for high input impedance potential difference by way of a potentiometer 14, and the electrode 13 directly thereto. The measurement is accomplished by putting a reference soln. in both chambers 4, 5, and controlling potential difference of the electrodes 12, 13 zero. Thence, the reference soln. of the chamber 5 is discharged by moving a 3-way cock 10, and after the lead-in tube 7, the chamber 5 and the electrode 13 are washed with pure water, the specimen liquid is put into the chamber 5 through the tube 7. The potential difference between the electrodes 12 and 13 is measured, recorded and displayed. In this way, the ions in said liquid are measured accurately in a less response time than that by a conventional method of using ion selective electrodes and without the need for prior making of a calibration curve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5631480A JPS56155846A (en) | 1980-04-30 | 1980-04-30 | Method and device for measuring ion concentration |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5631480A JPS56155846A (en) | 1980-04-30 | 1980-04-30 | Method and device for measuring ion concentration |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56155846A true JPS56155846A (en) | 1981-12-02 |
Family
ID=13023686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5631480A Pending JPS56155846A (en) | 1980-04-30 | 1980-04-30 | Method and device for measuring ion concentration |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56155846A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5544989A (en) * | 1978-09-27 | 1980-03-29 | Horiba Ltd | Silica analyzer |
-
1980
- 1980-04-30 JP JP5631480A patent/JPS56155846A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5544989A (en) * | 1978-09-27 | 1980-03-29 | Horiba Ltd | Silica analyzer |
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