GB2012435A - Electrochemical Measuring System - Google Patents
Electrochemical Measuring SystemInfo
- Publication number
- GB2012435A GB2012435A GB7900370A GB7900370A GB2012435A GB 2012435 A GB2012435 A GB 2012435A GB 7900370 A GB7900370 A GB 7900370A GB 7900370 A GB7900370 A GB 7900370A GB 2012435 A GB2012435 A GB 2012435A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- electrode segments
- cell
- potential
- measuring system
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/483—Physical analysis of biological material
- G01N33/487—Physical analysis of biological material of liquid biological material
- G01N33/49—Blood
- G01N33/492—Determining multiple analytes
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Chemical & Material Sciences (AREA)
- Hematology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Urology & Nephrology (AREA)
- Ecology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
An electrochemical measuring system which determines selected substances in a sample solution is provided. The system includes a cell which is constructed for simultaneous measurement on at least two electrodes of at least two electrolytic potentials with reference to a reference potential. In a preferred form the cell comprises a hollow, cylindrical body formed of an electrically insulating material. The electrode is open at least at one end and has a generally smooth cylindrical inner surface. A plurality of electrically discrete active electrode segments are mounted on the inner surface of the electrode with their active surfaces substantially flush with the generally smooth cylindrical inner surface. Completing the electrochemical measuring system are a stirring means for creating a relatively high degree of mixing adjacent the electrode active surfaces, means for charging liquid samples to the cell, and means connecting at least two of the electrically discrete active electrode segments to different electrical potentials. In use a sample to be tested is charged to the cell, and stirring is commenced. One of the electrode segments is held at a potential at which a selected substance of interest and also one or more interfering substances responds, while another of the electrode segments is held at a potential at which only the interfering substances respond. The presence of a substance of interest can be determined by subtracting the signals from the one and another electrode segments, and its quantity determined by integrating the signal difference. <IMAGE>
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US86865478A | 1978-01-11 | 1978-01-11 | |
US05/968,060 US4233031A (en) | 1978-12-11 | 1978-12-11 | Electrochemical testing system and method |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2012435A true GB2012435A (en) | 1979-07-25 |
GB2012435B GB2012435B (en) | 1982-10-27 |
Family
ID=27128066
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8017911A Expired GB2045946B (en) | 1978-01-11 | 1979-01-05 | Electrochemical analysis method |
GB7900370A Expired GB2012435B (en) | 1978-01-11 | 1979-01-05 | Electrochemical testing system |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8017911A Expired GB2045946B (en) | 1978-01-11 | 1979-01-05 | Electrochemical analysis method |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5952981B2 (en) |
CA (1) | CA1138043A (en) |
DE (1) | DE2900720A1 (en) |
FR (2) | FR2422948A1 (en) |
GB (2) | GB2045946B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4404065A (en) * | 1980-01-14 | 1983-09-13 | Enviromental Sciences Associates, Inc. | Electrochemical detection system and method of analysis |
JPS57110953A (en) * | 1980-12-27 | 1982-07-10 | Yanagimoto Seisakusho:Kk | Multielectrode voltammetry detector |
JPS5834355A (en) * | 1981-08-25 | 1983-02-28 | Yanagimoto Seisakusho:Kk | Twin electrode type voltammetry detection system |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3556950A (en) * | 1966-07-15 | 1971-01-19 | Ibm | Method and apparatus for automatic electrochemical analysis |
NL6816450A (en) * | 1968-11-19 | 1970-05-21 | ||
US3755125A (en) * | 1971-01-14 | 1973-08-28 | Envirometrics Inc | Electrochemical gas analyzer |
GB1460892A (en) * | 1973-01-19 | 1977-01-06 | Malcom Ellis Ltd | Apparatus for m'asuring the electrical conductivity of a liquor sample |
DE2339481C3 (en) * | 1973-08-03 | 1979-12-06 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Electric probe for use in electrically conductive liquids |
DE2652970C3 (en) * | 1976-11-22 | 1979-09-06 | Hartwig Ing.(Grad.) 2409 Scharbeutz Beyersdorf | Ionization fire detectors |
GB2005418B (en) * | 1977-07-26 | 1982-04-21 | Searle & Co | Electrochemical sensor system |
-
1979
- 1979-01-05 GB GB8017911A patent/GB2045946B/en not_active Expired
- 1979-01-05 GB GB7900370A patent/GB2012435B/en not_active Expired
- 1979-01-08 CA CA000319224A patent/CA1138043A/en not_active Expired
- 1979-01-10 FR FR7900578A patent/FR2422948A1/en active Granted
- 1979-01-10 DE DE19792900720 patent/DE2900720A1/en active Granted
- 1979-01-11 JP JP54001037A patent/JPS5952981B2/en not_active Expired
- 1979-08-23 FR FR7921262A patent/FR2431699A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
CA1138043A (en) | 1982-12-21 |
FR2422948B1 (en) | 1984-03-30 |
FR2431699A1 (en) | 1980-02-15 |
FR2431699B1 (en) | 1984-02-24 |
DE2900720A1 (en) | 1979-07-12 |
GB2012435B (en) | 1982-10-27 |
JPS5952981B2 (en) | 1984-12-22 |
GB2045946B (en) | 1982-11-24 |
DE2900720C2 (en) | 1989-06-01 |
FR2422948A1 (en) | 1979-11-09 |
JPS54130090A (en) | 1979-10-09 |
GB2045946A (en) | 1980-11-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE20 | Patent expired after termination of 20 years |
Effective date: 19990104 |