CN204086201U - A kind of clipping three electrode assemblies for micro-example Electrochemical Detection - Google Patents
A kind of clipping three electrode assemblies for micro-example Electrochemical Detection Download PDFInfo
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- CN204086201U CN204086201U CN201420369082.2U CN201420369082U CN204086201U CN 204086201 U CN204086201 U CN 204086201U CN 201420369082 U CN201420369082 U CN 201420369082U CN 204086201 U CN204086201 U CN 204086201U
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- electrode
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- clipping
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- electrochemical detection
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- 238000000835 electrochemical detection Methods 0.000 title claims abstract description 45
- 230000000712 assembly Effects 0.000 title claims abstract description 36
- 238000000429 assembly Methods 0.000 title claims abstract description 36
- 239000004033 plastic Substances 0.000 claims abstract description 13
- 229920003023 plastic Polymers 0.000 claims abstract description 13
- 238000003411 electrode reaction Methods 0.000 claims abstract description 6
- 238000005452 bending Methods 0.000 claims description 16
- 229910021607 Silver chloride Inorganic materials 0.000 claims description 5
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 claims description 5
- 239000011651 chromium Substances 0.000 description 9
- 239000000243 solution Substances 0.000 description 5
- 239000000523 sample Substances 0.000 description 4
- 229910001430 chromium ion Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000012488 sample solution Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000012224 working solution Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000000840 electrochemical analysis Methods 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Abstract
The utility model discloses a kind of clipping three electrode assemblies for micro-example Electrochemical Detection, comprise: plastic clip, it comprises upper and lower two intermediate plates, described intermediate plate comprises chuck portion (1) and hand grip portion (2), and the front edge in upper clip chuck portion (1) arranges two breach (3); Contrast electrode (4), its front end is in a described breach (3); To electrode (5), its front end is in breach described in another (3); Plate electrode (6), be clamped between described upper and lower two intermediate plates, described plate electrode (6) comprises electrode reaction region (7), it has tacky surfaces, described tacky surfaces is pasted with filter paper (8), described contrast electrode (4) and the described front end to electrode (5) and described filter paper (8) close contact.Clipping three electrode assembly structures for micro-example Electrochemical Detection described in the utility model are simple, cost is low, easy and simple to handle, required sample size is few.
Description
Technical field
The utility model relates to a kind of electrode assembly, particularly relate to a kind of can clipping three electrode assemblies for micro-example Electrochemical Detection matching used with flat working electrode.
Background technology
Electrochemical Detection refers to that Applied Electrochemistry instrument applies certain excitation to research system, then detects its response signal, and to the process that experimental data is analyzed.Generally speaking, electrochemical detection device comprises electrolytic cell 101, electrode suppor 102, working electrode 103, contrast electrode 104 and the what is called " three-electrode system " that forms electrode 105 etc. is the core component carrying out Electrochemical Detection.In the three-electrode system of routine (as depicted in figs. 1 and 2), electrolytic cell is generally made by by materials such as glass, teflon, organic glass (polymethyl methacrylate), tygon, polystyrene, epoxy resin, rubber, electrode suppor is making with insulating material with electrode jack, is buckled in steady job electrode on electrolytic cell, contrast electrode and to electrode as lid.Such three-electrode system own vol is comparatively large, and when carrying out electro-chemical test, the sample solution volume of needs is more, generally at several extremely tens of milliliter, is difficult to use in portable inspectiont.
Utility model content
The technical problems to be solved in the utility model is to provide clipping three electrode assemblies for micro-example Electrochemical Detection that a kind of structure is simple, cost is low, easy and simple to handle, required sample size is few.
For clipping three electrode assemblies for micro-example Electrochemical Detection, it comprises:
Plastic clip, it comprises upper and lower two intermediate plates, and described intermediate plate comprises chuck portion and hand grip portion, and the front edge in upper clip chuck portion arranges two breach;
Contrast electrode, it is be fixed on the wire electrode on described upper clip, and the front end of described contrast electrode is in a described breach;
To electrode, it is be fixed on the wire electrode on described upper clip, and the described front end to electrode is in breach described in another;
Plate electrode, be clamped between described upper and lower two intermediate plates, described plate electrode comprises electrode reaction region, and it has tacky surfaces, described tacky surfaces is pasted with filter paper, described contrast electrode and the described front end to electrode and described filter paper close contact.
Clipping three electrode assemblies for micro-example Electrochemical Detection described in the utility model, wherein said contrast electrode adopts the first wire electrode, and in centre position, bending forms, inflection point is the front end of described contrast electrode, be in a described breach, two parts after bending fit tightly the upper and lower being fixed on described upper clip chuck portion respectively, and the tail end of described contrast electrode is the two ends of described first wire electrode;
Described to electrode adopt the second wire electrode centre position bending form, inflection point is the described front end to electrode, be in breach described in another, two parts after bending fit tightly the upper and lower being fixed on described upper clip chuck portion respectively, and the described tail end to electrode is the two ends of described second wire electrode.
Clipping three electrode assemblies for micro-example Electrochemical Detection described in the utility model, the two ends of wherein said first wire electrode are exposed to be also mutually fastened outside described chuck portion; The two ends of described second wire electrode are exposed to be also mutually fastened outside described chuck portion.
Clipping three electrode assemblies for micro-example Electrochemical Detection described in the utility model, the chuck portion of wherein said upper clip is provided with two through holes, the one end being positioned at the bottom in described upper clip chuck portion in the two ends of described first wire electrode passes from described through hole, is mutually fastened with the other end of described first wire electrode; The one end being positioned at the bottom in described upper clip chuck portion in the two ends of described second wire electrode passes from through hole described in another, is mutually fastened with the other end of described second wire electrode.
Clipping three electrode assemblies for micro-example Electrochemical Detection described in the utility model, the total length of wherein said plastic clip is 20 ~ 50mm, and folder head length is 5 ~ 10mm, and folder head width is 15 ~ 40mm.
Clipping three electrode assemblies for micro-example Electrochemical Detection described in the utility model, the total length of wherein said plastic clip is 20 ~ 50mm, and folder head length is 10 ~ 20mm, and folder head width is 15 ~ 40mm.
Clipping three electrode assemblies for micro-example Electrochemical Detection described in the utility model, the distance wherein between two described breach (3) is 2 ~ 10mm.
Clipping three electrode assemblies for micro-example Electrochemical Detection described in the utility model, the electrode diameter of wherein said first wire electrode and described second wire electrode is 0.3mm ~ 1mm; Length is 40 ~ 80mm.
Clipping three electrode assemblies for micro-example Electrochemical Detection described in the utility model, wherein said first wire electrode is Ag/AgCl wire electrode, and described second wire electrode is Pt silk electrode.
The clipping three electrode assembly differences from prior art that the utility model is used for micro-example Electrochemical Detection are: the clipping three electrode assembly processing that the utility model is used for micro-example Electrochemical Detection are simple, can realize in common lab; Can effective integration filter paper as electrolytic cell, structure is simple; When carrying out Electrochemical Detection, required sample size is few, can be low to moderate several microlitre; Cost is low, transform electrode suppor as with cheap plastic clip.
Clipping three electrode assemblies for micro-example Electrochemical Detection that the utility model provides can support the use with flat working electrode (ZL201220539973.9), can integrated flat working electrode easily, for the Electrochemical Detection of micro updating sample.
Below in conjunction with accompanying drawing, clipping three electrode assemblies for micro-example Electrochemical Detection of the present utility model are described further.
Accompanying drawing explanation
Fig. 1 is three-electrode system of the prior art;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the perspective view for clipping three electrode assemblies of micro-example Electrochemical Detection in the utility model embodiment 1;
Fig. 4 is the vertical view for clipping three electrode assemblies of micro-example Electrochemical Detection in the utility model embodiment 1;
Fig. 5 is the side view for clipping three electrode assemblies of micro-example Electrochemical Detection in the utility model embodiment 1;
Fig. 6 is the perspective view for clipping three electrode assemblies of micro-example Electrochemical Detection in the utility model embodiment 2;
Fig. 7 is the vertical view for clipping three electrode assemblies of micro-example Electrochemical Detection in the utility model embodiment 2;
Fig. 8 is the side view for clipping three electrode assemblies of micro-example Electrochemical Detection in the utility model embodiment 2;
Fig. 9 is electrochemical signals curve when adopting clipping three electrode assemblies for micro-example Electrochemical Detection described in the utility model to detect the chromium ion in solution;
Figure 10 is the linear relationship chart of Cr (VI) when adopting clipping three electrode assemblies for micro-example Electrochemical Detection described in the utility model to detect the chromium ion in solution.
Embodiment
Embodiment 1
As in Figure 3-5, for clipping three electrode assemblies for micro-example Electrochemical Detection, it comprises: plastic clip, and it comprises upper and lower two intermediate plates, described intermediate plate comprises chuck portion 1 and hand grip portion 2, and the front edge in upper clip chuck portion 1 arranges two breach 3; Contrast electrode 4, it is be fixed on the wire electrode in described upper clip chuck portion 1, and the front end of described contrast electrode 4 is in a described breach 3; To electrode 5, it is be fixed on the wire electrode in described upper clip chuck portion 1, and the described front end to electrode 5 is in breach 3 described in another; Plate electrode 6, be clamped between described upper and lower two intermediate plates, described plate electrode 6 comprises electrode reaction region 7, and it has tacky surfaces, described tacky surfaces is pasted with filter paper 8, described contrast electrode 4 and the described front end to electrode 5 and described filter paper 8 close contact.
Described contrast electrode 4 adopts the first wire electrode, and in centre position, bending forms, inflection point is the front end of described contrast electrode 4, be in a described breach 3, two parts after bending fit tightly the upper and lower being fixed on described upper clip chuck portion 1 respectively, and the tail end of described contrast electrode 4 is the two ends of described first wire electrode; Described to electrode 5 adopt the second wire electrode centre position bending form, inflection point is the described front end to electrode 5, be in breach 3 described in another, two parts after bending fit tightly the upper and lower being fixed on described upper clip chuck portion 1 respectively, and the described tail end to electrode 5 is the two ends of described second wire electrode.The two ends of described first wire electrode are exposed to be also mutually fastened outside described chuck portion 1; The two ends of described second wire electrode are exposed to be also mutually fastened outside described chuck portion 1.Described first wire electrode is Ag/AgCl wire electrode, and described second wire electrode is Pt silk electrode.
The total length of described plastic clip is 20 ~ 50mm, and chuck portion 1 length is 5 ~ 10mm, and chuck portion 1 width is 15 ~ 40mm.Distance between two described breach 3 is 2 ~ 10mm.The electrode diameter of described first wire electrode and described second wire electrode is 0.3mm ~ 1mm; Length is 40 ~ 80mm.Concrete size is arranged according to actual needs, is any number in above-mentioned scope.
Embodiment 2
As shown in figs 6-8, for clipping three electrode assemblies for micro-example Electrochemical Detection, it comprises: plastic clip, and it comprises upper and lower two intermediate plates, described intermediate plate comprises chuck portion 1 and hand grip portion 2, and the front edge in upper clip chuck portion 1 arranges two breach 3; Contrast electrode 4, it is be fixed on the wire electrode in described upper clip chuck portion 1, and the front end of described contrast electrode 4 is in a described breach 3; To electrode 5, it is be fixed on the wire electrode in described upper clip chuck portion 1, and the described front end to electrode 5 is in breach 3 described in another; Plate electrode 6, be clamped between described upper and lower two intermediate plates, described plate electrode 6 comprises electrode reaction region 7, and it has tacky surfaces, described tacky surfaces is pasted with filter paper 8, described contrast electrode 4 and the described front end to electrode 5 and described filter paper 8 close contact.
Described contrast electrode 4 adopts the first wire electrode, and in centre position, bending forms, inflection point is the front end of described contrast electrode 4, be in a described breach 3, two parts after bending fit tightly the upper and lower being fixed on described upper clip chuck portion 1 respectively, and the tail end of described contrast electrode 4 is the two ends of described first wire electrode.
Described to electrode 5 adopt the second wire electrode centre position bending form, inflection point is the described front end to electrode 5, be in breach 3 described in another, two parts after bending fit tightly the upper and lower being fixed on described upper clip chuck portion 1 respectively, and the described tail end to electrode 5 is the two ends of described second wire electrode.The chuck portion 1 of described upper clip is provided with two through holes 9, the one end being positioned at the bottom in described upper clip chuck portion 1 in the two ends of described first wire electrode passes from described through hole 9, is mutually fastened with the other end of described first wire electrode; The one end being positioned at the bottom in described upper clip chuck portion 1 in the two ends of described second wire electrode passes from through hole described in another 9, is mutually fastened with the other end of described second wire electrode.Described first wire electrode is Ag/AgCl wire electrode, and described second wire electrode is Pt silk electrode.
The total length of described plastic clip is 20 ~ 50mm, and chuck portion 1 length is 10 ~ 20mm, and chuck portion 1 width is 15 ~ 40mm.Distance between two described breach 3 is 2 ~ 10mm.The electrode diameter of described first wire electrode and described second wire electrode is 0.3mm ~ 1mm; Length is 40 ~ 80mm.Concrete size is arranged according to actual needs, is any number in above-mentioned scope.
Adopt clipping three electrode assemblies for micro-example Electrochemical Detection described in the utility model to detect the chromium ion in solution, specific implementation process is as follows:
1) accurate formulation Cr (VI) concentration is respectively 26 μ g/L, 52 μ g/L, 260 μ g/L, 520 μ g/L, the standard working solution of 2600 μ g/L;
2) with Ag/AgCl wire electrode for contrast electrode, be to electrode with Pt silk electrode, and its mode according to method for making be fixed on fixture;
3) plate electrode being coated with filter paper with conversion zone is clamped in plastic clip, composition three-electrode system, and is connected with Electrochemical Detection main frame (as electrochemical workstation, potentiostat, voltammetric analyzer etc.).Then above-mentioned 5 standard working solution of 10 μ L are dripped at electrode surface, direct Amperometric is utilized to detect the Cr (VI) in solution, can obtain electrochemical signals curve as shown in Figure 9, the peak height of the electrochemical signals of each heavy metal ion is relevant with concentration of heavy metal ion.
As shown in Figure 10, in Cr (VI) concentration in the scope of 26 to 520 μ g/L, electric current=0.00306 × concentration+0.2352, related coefficient is 0.99212 to the linear relationship of Cr (VI).
4) 10 μ L testing sample solutions are dripped on plate electrode surface, direct Amperometric is utilized to detect the Cr (VI) in sample, the peak current obtaining Cr (VI) is 0.78 μ A, and the concentration that the linear equation being substituted into Cr (VI) obtains Cr (VI) in this sample solution is 178 μ g/L.
Above-described embodiment is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection domain that the utility model claims determine.
Claims (9)
1., for clipping three electrode assemblies for micro-example Electrochemical Detection, it is characterized in that: comprising:
Plastic clip, it comprises upper and lower two intermediate plates, and described intermediate plate comprises chuck portion (1) and hand grip portion (2), and the front edge in upper clip chuck portion (1) arranges two breach (3);
Contrast electrode (4), it is for being fixed on the wire electrode on described upper clip chuck portion (1), and the front end of described contrast electrode (4) is in a described breach (3);
To electrode (5), it is for being fixed on the wire electrode on described upper clip chuck portion (1), and the described front end to electrode (5) is in breach described in another (3);
Plate electrode (6), be clamped between described upper and lower two intermediate plates, described plate electrode (6) comprises electrode reaction region (7), described electrode reaction region (7) has tacky surfaces, described tacky surfaces is pasted with filter paper (8), described contrast electrode (4) and the described front end to electrode (5) and described filter paper (8) close contact.
2. clipping three electrode assemblies for micro-example Electrochemical Detection according to claim 1, it is characterized in that: described contrast electrode (4) adopts the first wire electrode, and in centre position, bending forms, inflection point is the front end of described contrast electrode (4), be in a described breach (3), two parts after bending fit tightly the upper and lower being fixed on described upper clip chuck portion (1) respectively, and the tail end of described contrast electrode (4) is the two ends of described first wire electrode;
Described to electrode (5) adopt the second wire electrode centre position bending form, inflection point is the described front end to electrode (5), be in breach described in another (3), two parts after bending fit tightly the upper and lower being fixed on described upper clip chuck portion (1) respectively, and the described tail end to electrode (5) is the two ends of described second wire electrode.
3. clipping three electrode assemblies for micro-example Electrochemical Detection according to claim 2, is characterized in that: the two ends of described first wire electrode are exposed to be also mutually fastened outside described chuck portion (1); The two ends of described second wire electrode are exposed to be also mutually fastened outside described chuck portion (1).
4. clipping three electrode assemblies for micro-example Electrochemical Detection according to claim 2, it is characterized in that: the chuck portion (1) of described upper clip is provided with two through holes (9), the one end being positioned at the bottom of described upper clip chuck portion (1) in the two ends of described first wire electrode passes from described through hole (9), is mutually fastened with the other end of described first wire electrode; The one end being positioned at the bottom of described upper clip chuck portion (1) in the two ends of described second wire electrode passes from through hole described in another (9), is mutually fastened with the other end of described second wire electrode.
5. clipping three electrode assemblies for micro-example Electrochemical Detection according to claim 3, it is characterized in that: the total length of described plastic clip is 20 ~ 50mm, chuck portion (1) length is 5 ~ 10mm, and chuck portion (1) width is 15 ~ 40mm.
6. clipping three electrode assemblies for micro-example Electrochemical Detection according to claim 4, it is characterized in that: the total length of described plastic clip is 20 ~ 50mm, chuck portion (1) length is 10 ~ 20mm, and chuck portion (1) width is 15 ~ 40mm.
7. clipping three electrode assemblies for micro-example Electrochemical Detection according to claim 5 or 6, is characterized in that: the distance between two described breach (3) is 2 ~ 10mm.
8. clipping three electrode assemblies for micro-example Electrochemical Detection according to claim 7, is characterized in that: the electrode diameter of described first wire electrode and described second wire electrode is 0.3mm ~ 1mm; Length is 40 ~ 80mm.
9. clipping three electrode assemblies for micro-example Electrochemical Detection according to claim 2, is characterized in that: described first wire electrode is Ag/AgCl wire electrode, and described second wire electrode is Pt silk electrode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420369082.2U CN204086201U (en) | 2014-07-04 | 2014-07-04 | A kind of clipping three electrode assemblies for micro-example Electrochemical Detection |
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| CN201420369082.2U CN204086201U (en) | 2014-07-04 | 2014-07-04 | A kind of clipping three electrode assemblies for micro-example Electrochemical Detection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806774A (en) * | 2016-05-16 | 2016-07-27 | 天津大学 | High-temperature high-pressure dynamic electrochemical test experimental device and test method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806774A (en) * | 2016-05-16 | 2016-07-27 | 天津大学 | High-temperature high-pressure dynamic electrochemical test experimental device and test method |
| CN105806774B (en) * | 2016-05-16 | 2018-07-03 | 天津大学 | High-temperature high-pressure dynamic electrochemical test experimental device and test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20160704 |