CN2593190Y - Ternary composite electrode - Google Patents
Ternary composite electrode Download PDFInfo
- Publication number
- CN2593190Y CN2593190Y CN 03200810 CN03200810U CN2593190Y CN 2593190 Y CN2593190 Y CN 2593190Y CN 03200810 CN03200810 CN 03200810 CN 03200810 U CN03200810 U CN 03200810U CN 2593190 Y CN2593190 Y CN 2593190Y
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- Prior art keywords
- electrode
- utility
- model
- electrodes
- ternary combination
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Abstract
The utility model provides a ternary composite electrode which is integrally composed of a reference electrode, a working electrode and an auxiliary electrode arranged on an electrode base. The utility model is characterized in that the reference electrode is sealed in inner reference solution in concentric glass sleeve pipes, and end surface between inner and outer sleeve pipes is provided with a permeable film, and the working electrode and the auxiliary electrode are arranged on the end surface of the center of the inner sleeve pipe. The technical scheme of the utility model enables the operation of solution exchange and electrode cleaning to be simpler, and the positions of the three electrodes are correspondingly fixed and not changed. Therefore, the utility model has the advantages that measurement repeatability is enhanced, errors caused by the measurement repeatability are reduced, and thus, measuring accuracy is increased; as distances among the electrodes are short, resistance among the electrodes is reduced, and measurement sensitivity is raised.
Description
Technical field
The utility model relates to a kind of ternary combination electrode, belongs to the electrochemical analysis necessary instrument
Technical field.
Background technology
It generally is the split design that existing electrochemical analysis is measured with electrode, i.e. working electrode, auxiliary electrode and contrast electrode, and three electrodes independently constitute.The relative position of three electrodes is difficult to fixing in use; Change the change that solution also causes electrode position easily; Bring error to measurement result thus.90211378 patented claims disclose a kind of " polarogram combination electrode ", proposed three electrodes are gathered technical scheme in one, the shortcoming that this design exists is a complex structure, because contrast electrode and working electrode are in same cavity, improperly causes short circuit easily between them if insulate.In addition, it oozes out groove and causes short circuit between two electrodes equally easily near the working electrode face.
Summary of the invention
The purpose of this utility model is to provide a kind of ternary combination electrode, simplifies the operation and reduces manufacturing cost, improves the degree of accuracy and the sensitivity of electrochemical measurement.
The technical solution of the utility model is achieved in that this ternary combination electrode, constitute by the contrast electrode, working electrode and the auxiliary electrode integral body that are arranged on the electrode tip holder, be characterized in that contrast electrode is encapsulated in the interior reference solution between the concentric glass bushing, end face between the internal and external casing is provided with permeable membrane, and working electrode and auxiliary electrode are arranged on the end face at inner sleeve center.
The glass bushing of described ternary combination electrode is provided with filling opening.
Permeable membrane between the described ternary combination electrode internal and external casing can also adopt micropore ceramics ring or nonwoven fabrics.
The contrast electrode of described ternary combination electrode, working electrode and auxiliary electrode are connected with binding post on the electrode tip holder by lead.
The technical solution adopted in the utility model, because contrast electrode (Ag/AgCl electrode), auxiliary electrode and working electrode (two platinum electrodes) are gathered in one, make a whole combination electrode, the technical progress effect is: the operation when 1, changing solution and cleaning electrode is simpler; 2, the position relative fixed of three electrodes is constant, has improved the measurement reappearance, has reduced the error brought thus, thereby has improved the degree of accuracy of measuring; 3, owing to distance between each electrode is very little, resistance reduces between the electrode, has improved the sensitivity of measuring.
Description of drawings Fig. 1 is synoptic diagram 1, working electrode and auxiliary electrode (being made up of a pair of platinum electrode) 2, contrast electrode (Ag/AgCl electrode) 3, interior reference solution (KCl solution) 4, permeable membrane 5, lead 6, filling opening 7, inner sleeve 8, outer tube 9, binding post 10, the electrode tip holder of the utility model ternary combination electrode
Embodiment
Figure 1 shows that a kind of embodiment of the utility model ternary combination electrode, promptly adopt two concentric glass bushings 7,8 to be arranged on the electrode tip holder 10, contrast electrode 2 is encapsulated between the internal and external casing, working electrode and auxiliary electrode 1,1 ' are encapsulated on the end face of inner sleeve, and electrode links to each other with binding post on the electrode tip holder by lead 5.Reference solution 3 in the can between the internal and external casing, internal and external casing 7 and 8 end face are provided with permeable membrane, and permeable membrane can adopt micropore ceramics ring or nonwoven fabrics to make during practical application, also is provided with filling opening 6 on the outer tube, seals with Capsule at ordinary times.
Claims (4)
1, a kind of ternary combination electrode, by the whole formation of contrast electrode (2), working electrode and auxiliary electrode (1) that is arranged on the electrode tip holder (10), it is characterized in that contrast electrode (2) is encapsulated in the interior reference solution (3) between the concentric glass bushing (7,8), end face between the internal and external casing is provided with permeable membrane (4), and working electrode and auxiliary electrode are arranged on the end face at inner sleeve (7) center.
2, ternary combination electrode according to claim 1 is characterized in that described glass bushing (8) is provided with filling opening (6).
3, ternary combination electrode according to claim 1 is characterized in that the permeable membrane between the described internal and external casing is the micropore ceramics ring.
4, ternary combination electrode according to claim 1 is characterized in that described contrast electrode (2), working electrode and auxiliary electrode (1) are connected with binding post on the electrode tip holder (10) by lead (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03200810 CN2593190Y (en) | 2003-01-14 | 2003-01-14 | Ternary composite electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03200810 CN2593190Y (en) | 2003-01-14 | 2003-01-14 | Ternary composite electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2593190Y true CN2593190Y (en) | 2003-12-17 |
Family
ID=33753043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03200810 Expired - Fee Related CN2593190Y (en) | 2003-01-14 | 2003-01-14 | Ternary composite electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2593190Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392388C (en) * | 2005-09-23 | 2008-06-04 | 中国科学院长春应用化学研究所 | Preparation method of electrochemical combined electrode |
| CN105136676A (en) * | 2015-08-25 | 2015-12-09 | 广西壮族自治区农业科学院农产品质量安全与检测技术研究所 | Photoelectric chemical reaction device |
-
2003
- 2003-01-14 CN CN 03200810 patent/CN2593190Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392388C (en) * | 2005-09-23 | 2008-06-04 | 中国科学院长春应用化学研究所 | Preparation method of electrochemical combined electrode |
| CN105136676A (en) * | 2015-08-25 | 2015-12-09 | 广西壮族自治区农业科学院农产品质量安全与检测技术研究所 | Photoelectric chemical reaction device |
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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 |