GB2297172A - Analysis of liquid solutions - Google Patents
Analysis of liquid solutionsInfo
- Publication number
- GB2297172A GB2297172A GB9601835A GB9601835A GB2297172A GB 2297172 A GB2297172 A GB 2297172A GB 9601835 A GB9601835 A GB 9601835A GB 9601835 A GB9601835 A GB 9601835A GB 2297172 A GB2297172 A GB 2297172A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- active surface
- sensor element
- sensor
- vibrated
- 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.)
- Withdrawn
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
- G01N27/28—Electrolytic cell components
- G01N27/283—Means for supporting or introducing electrochemical probes
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 Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
Low concentrations of target species in liquid solutions are analysed using a simple, disposable, electrode sensor element (1) in the form of a flat strip (10) of insulating substrate material with one or more flat electrodes (12) printed on it. The electrode is overlaid with an insulating layer (14) which as a through aperture (16) exposing an active surface (18) of the working electrode (12). The area of the active surface is precisely known. In use, the electrode is vibrated in a plane normal to the plane of the substrate. In preferred arrangements this vibration is intermittent. The sensor, vibrated at a known frequency, produces a stable and repeatable current signal representing concentration of the solution. Any reagents necessary are incorporated in the disposable sensor element as supplied, in a further coating (20) which dissolves when the sensor element is immersed in the solution. Such a coating can also be used to prevent contamination of the active surface (18) before use. The sensor elements may be made in a form in which the electrode working surfaces are exposed only when the element is broken off a larger body, which may be a continuous tape or strip.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB939315765A GB9315765D0 (en) | 1993-07-30 | 1993-07-30 | Electrochemical sensor and method of use,for analysis of low concentrations of electroactive species in solution,particularly chlorine in water |
GB9410547A GB9410547D0 (en) | 1994-05-26 | 1994-05-26 | Analysis of liquid solutions |
PCT/GB1994/001690 WO1995004271A1 (en) | 1993-07-30 | 1994-08-01 | Analysis of liquid solutions |
Publications (2)
Publication Number | Publication Date |
---|---|
GB9601835D0 GB9601835D0 (en) | 1996-04-03 |
GB2297172A true GB2297172A (en) | 1996-07-24 |
Family
ID=26303299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9601835A Withdrawn GB2297172A (en) | 1993-07-30 | 1994-08-01 | Analysis of liquid solutions |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB2297172A (en) |
WO (1) | WO1995004271A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8277618B2 (en) | 2006-05-19 | 2012-10-02 | The University Of Liverpool | Electrochemical cell |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8927377D0 (en) * | 1989-12-04 | 1990-01-31 | Univ Edinburgh | Improvements in and relating to amperometric assays |
GB9407929D0 (en) * | 1994-04-21 | 1994-06-15 | Capteur Sensors & Analysers | Electrochemical analysis of liquid streams |
GB0208095D0 (en) * | 2002-04-09 | 2002-05-22 | Dobson John V | Electrochemical sensor system and sensing method |
EP1406085A1 (en) * | 2002-10-01 | 2004-04-07 | Metrohm Ag | Electrode, electrode element, methods of their fabrication and use of said electrode |
EP2510108A4 (en) * | 2009-12-10 | 2016-11-02 | Analytical Instr Systems Ins | Sensor arrangement with snap-off segments |
EP2980576A1 (en) * | 2014-07-31 | 2016-02-03 | Electrochemical Sensor Technological (EST) Limited | Electrochemical sensor system and sensing method |
CN110596211B (en) * | 2019-10-22 | 2024-07-02 | 南方科技大学 | Vibration flat plate electrode connector |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0122420A2 (en) * | 1983-04-11 | 1984-10-24 | Roche Diagnostics GmbH | Electrode arrangement for the electrochemical analysis of the electrolytic component of a liquid |
DE4040293A1 (en) * | 1990-12-17 | 1992-06-25 | Paedagogische Hochschule Halle | Single-dimension vibration electrode drive mechanism - uses vibrating loudspeaker membranes mechanically coupled to vibration electrode |
EP0504730A2 (en) * | 1991-03-22 | 1992-09-23 | Seiko Instruments Inc. | Electrochemical measurement system |
WO1992021961A1 (en) * | 1991-06-05 | 1992-12-10 | Capteur Sensors & Analysers Ltd. | Electro-analysis of liquids and sensing elements for use therein |
-
1994
- 1994-08-01 GB GB9601835A patent/GB2297172A/en not_active Withdrawn
- 1994-08-01 WO PCT/GB1994/001690 patent/WO1995004271A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0122420A2 (en) * | 1983-04-11 | 1984-10-24 | Roche Diagnostics GmbH | Electrode arrangement for the electrochemical analysis of the electrolytic component of a liquid |
DE4040293A1 (en) * | 1990-12-17 | 1992-06-25 | Paedagogische Hochschule Halle | Single-dimension vibration electrode drive mechanism - uses vibrating loudspeaker membranes mechanically coupled to vibration electrode |
EP0504730A2 (en) * | 1991-03-22 | 1992-09-23 | Seiko Instruments Inc. | Electrochemical measurement system |
WO1992021961A1 (en) * | 1991-06-05 | 1992-12-10 | Capteur Sensors & Analysers Ltd. | Electro-analysis of liquids and sensing elements for use therein |
Non-Patent Citations (3)
Title |
---|
Analytical Chemistry, Vol. 59, 1987, pages 2692-2699 * |
IEEE Transactions on Bio-medical Engineering, Vol. BME-34, No. 9, Sept 1987, pages 657-663. * |
Review of Scientific Instruments, Vol. 59, No. 5, May 1988, pages 787-792 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8277618B2 (en) | 2006-05-19 | 2012-10-02 | The University Of Liverpool | Electrochemical cell |
Also Published As
Publication number | Publication date |
---|---|
GB9601835D0 (en) | 1996-04-03 |
WO1995004271A1 (en) | 1995-02-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |