CN88211182U - Micro-leakage reference electrode - Google Patents
Micro-leakage reference electrode Download PDFInfo
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- CN88211182U CN88211182U CN 88211182 CN88211182U CN88211182U CN 88211182 U CN88211182 U CN 88211182U CN 88211182 CN88211182 CN 88211182 CN 88211182 U CN88211182 U CN 88211182U CN 88211182 U CN88211182 U CN 88211182U
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- electrode
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Abstract
The utility model discloses a micro-leakage reference electrode. The electrode film is made by adopting the graphite film, the inner electrode is Ag-Agcl, and therefore, the calomel electrode commonly used in labs can be replaced by the micro-leakage reference electrode. The electrode film and the electrode cavity body are fixed into an integral body in a cemented mode. The utility model has the advantages of easy fabrication, convenient operation.
Description
The utility model belongs to the electrochemical research field, relates to a kind of contrast electrode, particularly little seepage contrast electrode.
At present, it is mercurous chloride electrode that the most general contrast electrode is used in the laboratory, and its disadvantage is the manufacturing process complexity, and electrode shell and inner core all are glasswares, and mercury that the electrode inner core is adorned and mercurous chloride (calomel) are the noxious material that causes pollution.Saturated calomel electrode seepage speed is very fast, solution runs off in causing, and easy contaminated samples, perhaps be subjected to the pollution of external environment, solution in also needing simultaneously often to bring in constant renewal in from the side pipe mouth, therefore should pay close attention to when electrode uses, and it can produce bigger liquid junction potential when contacting with the charge species suspension.
Early eighties, once someone's graphite of developing a kind of low leakage type connect boundary's electrode, but the processing of kind electrode film is complicated, because solution is copper one copper sulphate in it, therefore indoor and inapplicable.
The purpose of this utility model provides a kind of little seepage contrast electrode, adopts silver-colored monochlor(in)ate silver as interior electrode, can substitute present mercurous chloride electrode, uses for indoor and on-the-spot test, and easy to carry, electrode response is fast.
The utility model is finished as follows: similar with ordinary electrode, the solution in electrode inner core and the electrode of in electrode chamber, packing into, its key is with glued mode electrode film and electrode chamber gluing to be integral, and electrode film adopts graphite film to make.Graphite film can be made with following method, and dag through chemical treatment, is made it to expand under 1000 ℃ of hot conditions, is pressed into graphite film at last.In order to reduce the internal resistance of electrode, accelerate electrode response time, make electrode film again after preferably graphite film being handled a little, because it is also uncomplicated to handle the technology of graphite film, so the processing of electrode and easy to manufacture.
Below in conjunction with the accompanying drawing shown in the embodiment the utility model is described in further detail.
Fig. 1 is little seepage contrast electrode structural representation.
With reference to Fig. 1, electrode chamber (1) is provided with electrode cap (5), electrode inner core (3) and lead (6) conducting, the interior filling of electrode chamber (1) solution (2) in a certain amount of electrode, for stoping the leakage of solution in the electrode (2) effectively, can be provided with that end of electrode cap (5) in electrode chamber (1), add a sealing-plug (7), electrode film (4) is fixed on the other end of electrode chamber (1) in the mode of gluing, electrode film (4) adopts the graphite film of handling, and tailors into required shape according to different requirements and gets final product.The thickness of graphite film is preferably 0.05cm～0.1cm, electrode film (4) can adopt epoxy to add silicon rubber and be integral as jointing compound and electrode chamber (1) gluing, adopt epoxy to add silicon rubber and be that as the benefit of jointing compound gluing is firmly waterproof again, also have certain toughness simultaneously.
The utility model is easy to manufacture, long service life, and electrode potential is stable, favorable reproducibility, equilibration time is short, and the electrode internal resistance is littler, therefore electric current causes that measure error (IR) falls littler, suspension effect is little, and the seepage speed of solution is extremely slow in the electrode, has reduced the pollution of sample, and be difficult for polarization, owing to adopt silver-colored monochlor(in)ate silver as interior electrode, can replace calomel electrode, work brings convenience to indoor and outdoor.
Claims (3)
1, little seepage contrast electrode is made up of electrode chamber, electrode cap, electrode inner core, lead, silver-colored monochlor(in)ate Ag inner electrode, it is characterized in that electrode film adopts graphite film to make, and electrode film is fixed into one with the mode and the electrode chamber of gluing.
2, according to little seepage contrast electrode of claim 1 regulation, the thickness that it is characterized in that making the graphite film of electrode film is 0.05cm～0.1cm.
3, according to little seepage contrast electrode of claim 1 or 2 regulations, it is characterized in that electrode film adds silicon rubber by epoxy and is fixed into one as jointing compound and electrode chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88211182 CN88211182U (en) | 1988-03-26 | 1988-03-26 | Micro-leakage reference electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88211182 CN88211182U (en) | 1988-03-26 | 1988-03-26 | Micro-leakage reference electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN88211182U true CN88211182U (en) | 1988-11-30 |
Family
ID=4844606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88211182 Withdrawn CN88211182U (en) | 1988-03-26 | 1988-03-26 | Micro-leakage reference electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN88211182U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806773A (en) * | 2014-12-31 | 2016-07-27 | 国核（北京）科学技术研究院有限公司 | High-temperature villiaumite reference electrode and manufacturing method thereof |
-
1988
- 1988-03-26 CN CN 88211182 patent/CN88211182U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806773A (en) * | 2014-12-31 | 2016-07-27 | 国核（北京）科学技术研究院有限公司 | High-temperature villiaumite reference electrode and manufacturing method thereof |
| CN105806773B (en) * | 2014-12-31 | 2018-07-10 | 国核（北京）科学技术研究院有限公司 | High temperature villiaumite reference electrode and its manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |