CN2537977Y - Open type electrochemical circulation pool - Google Patents
Open type electrochemical circulation pool Download PDFInfo
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- CN2537977Y CN2537977Y CN 02234348 CN02234348U CN2537977Y CN 2537977 Y CN2537977 Y CN 2537977Y CN 02234348 CN02234348 CN 02234348 CN 02234348 U CN02234348 U CN 02234348U CN 2537977 Y CN2537977 Y CN 2537977Y
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Abstract
The utility model relates to a design of an open electrochemical flow cell. Double cell design is adopted for the electrolytic cell. A reference cell is behind and paralleled with a liquid flowing passage. The two cells are connected through a glass sand core. The electrolytic cell is integrated into a whole. The top-view section of the flow cell body is in the shape of ''H''. The opening of the positive upper side of the cell body is communicated with the exterior. The entrance of the flow cell is in the cell bottom and the exit is above the entrance and at the same side of the entrance. The design of the ''H'' shape cell body aims that, after the electrode is inserted into the electrolytic cell, the substrate of the plate electrode is inlaid to the electrolytic cell so as to fix the electrode plate, and the substrate forms a rectangle fluid passage together with the other two inner walls of the electrolytic cell; but the sensitive faces of the electrode is exposed in the cell to form the inner wall of the electrolytic cell. The electrolytic cell does not utilize any combination, sealing and disassembly during the using process.
Description
Technical field: this opening galvanochemistry flow cell belongs to the design of electrochemical investigating pond.
Background technology: real-time, on-line analysis is just becoming one of target of analytical chemistry development, and the Flow Injection Analysis method is an important means of realizing this goal.The design that is used for the electrochemical investigating pond of current system mainly comprises two classes: spray wall type detection cell and tubulose detection cell [Fang Zhaolun etc., flow injection analysis, Science Press, 1999,261-179].This type of detection cell has become conventional configuration in most of electrochemical analysis system.At present, use the plate disposable electrode that is produced on a large scale and make the extensive concern that various electrochemical sensors have caused people, wherein portioned product has been obtained the commercialization success.But the application of this plate disposable electrochemical sensor in current system is very limited, and a chief reason is the interface problem of the two, i.e. the design of galvanochemistry flow cell.Collier, W.A., Lovejoy, P., Hart, A.L., 1998.Estimation of solubleL-lactate in dairy products using screen-printed sensors ina flow injection analyzer.Biosens.Bioelectron.13 (2), 219-225 disclose a spray wall type flow cell that is applicable to disposable flat pole.Pemberton, R.M., Hart, J.P., Stoddard, P., Foulkes, J.A., 1999.A comparison of 1-Naphthyl phosphate and 4-aminophenylphosphate as enzyme substrates for use with a screen-printedamperometric immunosensor for progesterone in cows ' milk.Biosens.Bioelectron discloses a thin layer formula flow cell that is applicable to disposable flat pole.All have the problem that need disassemble electrolytic cell when changing electrode in their design, this can not carry out continuously with regard to the analytic process that makes.Zhang, C.X., Gao, Q., Aizawa, M., 2001.Flow injection analytical system forglucose with screen-printed enzyme biosensor incorporatingOs-complex mediator.Anal.Chim.Acta 426,33-44 has designed a flow cell that electrode is easy to change, and need disassemble the problem of electrolytic cell when preferably resolving replacing sensor.But two electrode systems are adopted in this design, and electrode is prone to polarization phenomena, need to add a large amount of supporting electrolytes in the solution to guarantee electrode potential.
Summary of the invention: the purpose of this utility model provides a kind of opening galvanochemistry flow cell.Electrolytic cell adopts the design of two ponds, and it is parallel with flow passage that reference cell is positioned at the flow passage rear, and two ponds connect by a glass sand core, and are promptly as a whole after the electrolytic cell moulding.Look the cross section on the body of flow cell pond and be " H " shape, opening communicates with the external world directly over the body of pond.Flow cell inlet is positioned at the bottom of the pond, outlet be positioned at the inlet top and with the inlet homonymy.Adopted the pond body purpose of design of " H " shape to be, after electrode inserts electrolytic cell, the substrate of plate electrode promptly is bumped in the groove of electrolytic cell and makes electrode slice be fixed, and constitute a rectangular parallelepiped fluid passage with two other inwall of electrolytic cell is common, and the electrode sensitive face is exposed to and becomes the electrolytic cell inwall in the pond.In use there is not combination in electrolytic cell, sealing and tear down operations.
Embodiment: embodiment of the present utility model is described below in conjunction with the accompanying drawings:
Accompanying drawing 1 is the overall schematic of open electrolytic cell.
Accompanying drawing 2 is an electrolytic cell axis side cross-section synoptic diagram.
Among the figure: slot electrode (1) is a working electrode and to the electrode insertion position, flow passage (4) two ends communicate with slot electrode, have outlet (2) and inlet (3) perpendicular to flow passage, contrast electrode (7) places reference cell (6), it is parallel with flow passage that reference cell (6) is positioned at the flow passage dead astern, the two is connected flow passage (4) and reference cell (6) by glass sand core (5), in electrode (8) and (9) insertion slot electrode, its geometric configuration and slot electrode coincide, and constituting a rectangular parallelepiped fluid passage with two other inwall of electrolytic cell is common, sensor sensing face (10) is exposed to becomes the electrolytic cell inwall in the pond.
In experimentation, the first step is full of saturated KCl solution earlier in reference cell (6), then contrast electrode (7) is placed the pond; Second step inserted in the pond with working electrode (8) with to electrode (9).The 3rd step fed the current-carrying electrolyte solution from inlet (3).Detect beginning.For preventing that solution from overflowing from the top opening part, with the flow velocity that is not less than the inlet flow velocity solution is extracted out in the exit.Because the electrolytic cell upper end open, so solution flow rate is by the decision of inlet flow velocity in the pond, liquid level fluctuating between the lower edge in the outlet, can not overflow yet and can not drain all the time.When needs more during emat sensor, need only change new sensor into and get final product taking out with the sensor of crossing, electrode and contrast electrode can not changed for a long time.
Electrolytic cell adopts open by design, does not need to disassemble electrolytic cell when changing electrode, so electrode is changed very convenient and can be because of friction lesion electrode sensitive area in electrode replacing process.These characteristics have satisfied the requirement of changing electrochemical sensor under the situation of needs troublesome operation not, simplified operation steps, reduced requirement, thereby be specially adapted to the interface section of in current system, using as plate disposable electrochemical sensor to the skilled operation degree.
Claims (1)
1. an opening galvanochemistry flow cell is characterized in that slot electrode (1) is for working electrode with to the electrode insertion position, flow passage (4) two ends communicate with slot electrode, have outlet (2) and inlet (3) perpendicular to flow passage, contrast electrode (7) places reference cell (6), it is parallel with flow passage that reference cell (6) is positioned at the flow passage dead astern, the two is connected flow passage (4) and reference cell (6) by glass sand core (5), in electrode (8) and (9) insertion slot electrode, its geometric configuration and slot electrode coincide, and constituting a rectangular parallelepiped fluid passage with two other inwall of electrolytic cell is common, sensor sensing face (10) is exposed to becomes the electrolytic cell inwall in the pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02234348 CN2537977Y (en) | 2002-04-30 | 2002-04-30 | Open type electrochemical circulation pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02234348 CN2537977Y (en) | 2002-04-30 | 2002-04-30 | Open type electrochemical circulation pool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2537977Y true CN2537977Y (en) | 2003-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02234348 Expired - Fee Related CN2537977Y (en) | 2002-04-30 | 2002-04-30 | Open type electrochemical circulation pool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2537977Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271077B (en) * | 2008-05-12 | 2011-01-12 | 杭州电子科技大学 | Stationary flow measuring pool for electro-chemistry sensing glass electrode |
-
2002
- 2002-04-30 CN CN 02234348 patent/CN2537977Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271077B (en) * | 2008-05-12 | 2011-01-12 | 杭州电子科技大学 | Stationary flow measuring pool for electro-chemistry sensing glass electrode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |