CN101915798A - Ion selective electrode - Google Patents
Ion selective electrode Download PDFInfo
- Publication number
- CN101915798A CN101915798A CN2010102444865A CN201010244486A CN101915798A CN 101915798 A CN101915798 A CN 101915798A CN 2010102444865 A CN2010102444865 A CN 2010102444865A CN 201010244486 A CN201010244486 A CN 201010244486A CN 101915798 A CN101915798 A CN 101915798A
- Authority
- CN
- China
- Prior art keywords
- ion
- electrode
- selective electrode
- metal film
- metal
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims abstract description 29
- 229910052751 metal Inorganic materials 0.000 claims abstract description 26
- 239000002184 metal Substances 0.000 claims abstract description 26
- 239000010453 quartz Substances 0.000 claims abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000012528 membrane Substances 0.000 claims description 14
- 238000007747 plating Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 6
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract 3
- 238000005260 corrosion Methods 0.000 abstract 3
- 150000002500 ions Chemical class 0.000 description 30
- 230000007613 environmental effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002144 chemical decomposition reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000004186 food analysis Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005220 pharmaceutical analysis Methods 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 238000004856 soil analysis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
An ion selective electrode, a metal wire is arranged in a corrosion resistant material rod, metal films are plated at two ends of the corrosion resistant material rod, the metal films are communicated with the metal wire, and ion sensitive films are sprayed on the outer layers of the metal films. The thickness of the ion sensitive film is 5-50 microns, the ion sensitive film completely covers the metal film, and the corrosion-resistant material rod is made of quartz material. The invention improves the anti-interference capability of the ion electrode detection loop and greatly improves the detection sensitivity of the ion electrode. The internal reference electrode accessory system can be isolated outside severe environment conditions, such as a high temperature, the temperature resistance stability of the ion selective electrode is improved, and the temperature drift is reduced.
Description
Technical field
The present invention relates to a kind of electric chemical formula sensitive element.Particularly a kind of ion-selective electrode.
Background technology
Ion-selective electrode is a kind of certain specific ion to be had optionally indicator electrode, be a kind of simple, rapidly, can be used for the non-destructive analysis instrument of coloured and turbid solution.Generally need not carry out Chemical Decomposition, not require complicated instrument, can differentiate the existence form of different ions, energy measurement arrives the sample of several microlitres less.
As glass electrode is exactly to H
+Ion has optionally electrode, is to measure the most frequently used H of PH value
+The indicator electrode of ion concentration has occurred Na again afterwards in succession
+, Cl
-, I
-, Ca
+The indicator electrode of plasma sensitivity.At present, existing tens kinds of ion-selective electrode come into operation, and this is a kind of novel measurement and the testing tool that develops rapidly in recent years.Because it is simple to measure device therefor with ion-selective electrode, easy to operate, and the energy rapid Continuous Determination, it successfully is applied to environmental monitoring, water quality and soil analysis, clinical assay, ocean expedition, industrial flow control and fields such as geology, metallurgy, agricultural, food and Pharmaceutical Analysis.
Summary of the invention
The purpose of this invention is to provide a kind of ion-selective electrode, the internal reference electrode accessory system can be isolated in beyond the severe environmental conditions, increased ion-selective electrode heatproof stability, reduced temperature drift; Further improve the antijamming capability in ion electrode detection loop, also improved the ion electrode detection sensitivity simultaneously greatly.
For solving technical matters, the object of the present invention is achieved like this: a kind of ion-selective electrode, be provided with tinsel in the anticorrosive material bar, and anticorrosive material bar two ends metal-plated membrane, metal film is communicated with tinsel, and the outer spraying plating of metal film has ion sensitive membrane.
The ion-sensitive film thickness is the 5-50 micron.
Ion sensitive membrane covers metal film fully.
The anticorrosive material bar is a quartz material.
Metal film covers anticorrosive material bar two ends end face.
The periphery face respective area that metal film covers anticorrosive material bar two ends end face and joins with end face.
A kind of ion-selective electrode provided by the invention, its beneficial effect is as follows:
1, the high impedance of the sufficient length of Cai Yonging, low thermal coefficient of expansion, the high Corrosive Materia of anti-operating mode bar can be isolated in the internal reference electrode accessory system beyond the severe environmental conditions, such as away from high temperature, increase ion-selective electrode heatproof stability, reduced temperature drift.
The 2 smooth cleanings of adopting in anticorrosive material bar two ends and be coated with bar in preset the identical metal film of tinsel material, the periphery face respective area that metal film covers anticorrosive material bar two ends end face or two ends end face and joins with end face.Ion sensitive membrane covers metal film fully, its area of ion sensitive membrane can surpass more than 10 times of conventional ion sensitive electrode area, corresponding impedance also reduces an order of magnitude, further improve the antijamming capability in ion electrode detection loop, also improved the ion electrode detection sensitivity simultaneously greatly.
Description of drawings
Fig. 1 is apparatus of the present invention structural representation;
Fig. 2 is apparatus of the present invention A end zoomed-in view;
Fig. 3 is apparatus of the present invention B end zoomed-in view.
Embodiment
A kind of ion-selective electrode is provided with tinsel 2 in the anticorrosive material bar 1, anticorrosive material bar 1 two ends metal-plated membrane 3, and metal film 3 is communicated with tinsel 2, and metal film 3 outer spraying platings have ion sensitive membrane 4.
Described ion sensitive membrane 4 thickness are the 5-50 micron.
Described ion sensitive membrane 4 covers metal film 3 fully.
Described anticorrosive material bar 1 is a quartz material.
Described metal film 3 covering anticorrosive material bar 1 two ends end faces or two ends end face and the periphery face respective area of joining with end face.
Embodiment:
The high impedance that adopts, low thermal coefficient of expansion, operating mode anticorrosive material bar 1 adopt quartz material, also can use pottery.
Tinsel 2 is gold silk or platinum wire.
The smooth cleaning in anticorrosive material bar 1 two ends and be coated with bar in preset the identical metal film 3 of tinsel 2 materials to avoid producing the contact thermoelectrical potential.
The ion-selective electrode that the present invention has Low ESR, super large ion sensitive membrane 4 areas can use separately, also can be made into combination electrode with contrast electrode according to conventional method and use.
Claims (6)
1. ion-selective electrode, it is characterized in that: be provided with tinsel (2) in the anticorrosive material bar (1), anticorrosive material bar (1) is gone up metal-plated membrane (3), and metal film (3) is communicated with tinsel (2), and the outer spraying plating of metal film (3) has ion sensitive membrane (4).
2. a kind of ion-selective electrode according to claim 1 is characterized in that: ion sensitive membrane (4) thickness is the 5-50 micron.
3. a kind of ion-selective electrode according to claim 1 and 2 is characterized in that: ion sensitive membrane (4) covers metal film (3) fully.
4. a kind of ion-selective electrode according to claim 1 is characterized in that: anticorrosive material bar (1) is a quartz material.
5. a kind of ion-selective electrode according to claim 1 is characterized in that: metal film (3) covers anticorrosive material bar (1) two ends end face.
6. a kind of ion-selective electrode according to claim 1 is characterized in that: the periphery face respective area that metal film (3) covers anticorrosive material bar (1) two ends end face and joins with end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010244486.5A CN101915798B (en) | 2010-08-04 | 2010-08-04 | Ion selective electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010244486.5A CN101915798B (en) | 2010-08-04 | 2010-08-04 | Ion selective electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101915798A true CN101915798A (en) | 2010-12-15 |
| CN101915798B CN101915798B (en) | 2014-04-09 |
Family
ID=43323359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010244486.5A Active CN101915798B (en) | 2010-08-04 | 2010-08-04 | Ion selective electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101915798B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760862A (en) * | 2018-04-04 | 2018-11-06 | 山东金特昂莱测控技术有限公司 | A kind of bromination silver electrode and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098502A (en) * | 1993-08-06 | 1995-02-08 | 湖南大学 | Phosphoric acid radical ion-selective electrode and uses thereof |
| US20040262233A1 (en) * | 2003-04-17 | 2004-12-30 | Daisaku Yano | Method and apparatus for controlling concentration of water treatment chemicals |
| CN1975398A (en) * | 2006-10-24 | 2007-06-06 | 东北电力大学 | Full solid Zn ion selective electrode and producing method thereof |
-
2010
- 2010-08-04 CN CN201010244486.5A patent/CN101915798B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098502A (en) * | 1993-08-06 | 1995-02-08 | 湖南大学 | Phosphoric acid radical ion-selective electrode and uses thereof |
| US20040262233A1 (en) * | 2003-04-17 | 2004-12-30 | Daisaku Yano | Method and apparatus for controlling concentration of water treatment chemicals |
| CN1975398A (en) * | 2006-10-24 | 2007-06-06 | 东北电力大学 | Full solid Zn ion selective electrode and producing method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760862A (en) * | 2018-04-04 | 2018-11-06 | 山东金特昂莱测控技术有限公司 | A kind of bromination silver electrode and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101915798B (en) | 2014-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Azmi et al. | Techniques in advancing the capabilities of various nitrate detection methods: A review | |
| Maity et al. | Pulse-driven capacitive lead ion detection with reduced graphene oxide field-effect transistor integrated with an analyzing device for rapid water quality monitoring | |
| Li et al. | Phosphate sensor using molybdenum | |
| Herzog et al. | On-chip electrochemical microsystems for measurements of copper and conductivity in artificial seawater | |
| Chaiyo et al. | Highly sensitive determination of mercury using copper enhancer by diamond electrode coupled with sequential injection–anodic stripping voltammetry | |
| CN103743804A (en) | Organic phosphorus electrochemical biosensor based on adsorption of nano particles | |
| Kokkinos et al. | Determination of Pb (II) by sequential injection/stripping analysis at all-plastic electrochemical fluidic cells with integrated composite electrodes | |
| Sharma et al. | Impedimetric sensors: principles, applications and recent trends | |
| Alahi et al. | Practical nitrate sensor based on electrochemical impedance measurement | |
| Wang et al. | Self-assembled graphene and copper nanoparticles composite sensor for nitrate determination | |
| Su et al. | Detection of Cu (II) ion by an electrochemical sensor made of 5, 17-bis (4′-nitrophenylazo)-25, 26, 27, 28-tetrahydroxycalix [4] arene-electromodified electrode | |
| Zhang et al. | High-performance electrochemical nitrite sensing enabled using commercial carbon fiber cloth | |
| Wan et al. | Design of a novel hybrid sensor with microelectrode array and LAPS for heavy metal determination using multivariate nonlinear calibration | |
| Xu et al. | The effects of antimony thin film thickness on antimony pH electrode coated with nafion membrane | |
| Liu et al. | Experimental and finite element method studies for femtomolar cobalt ion detection using a DHI modified nanochannel | |
| Hu et al. | Miniaturized electrochemical sensor with micropillar array working electrode for trace lead online measurement in tap water | |
| Carminati et al. | Flexible impedance sensor for in-line monitoring of water and beverages | |
| Guo et al. | A PDMS microfluidic impedance immunosensor for sensitive detection of pesticide residues in vegetable real samples | |
| Noyhouzer et al. | A new electrochemical flow cell for the remote sensing of heavy metals | |
| CN101915798B (en) | Ion selective electrode | |
| Tang et al. | Determination of methyl parathion by solid-phase extraction on an ionic liquid–carbon nanotube composite electrode | |
| dos Santos et al. | A versatile and robust electrochemical flow cell with a boron-doped diamond electrode for simultaneous determination of Zn 2+ and Pb 2+ ions in water samples | |
| CN109507267B (en) | Sensing material for quickly detecting biological hydrogen sulfide and preparation method thereof | |
| CN201740758U (en) | Ion selective electrode | |
| Gong et al. | Reusable boron-doped diamond electrodes for the semi-continuous detection of Tetrabromobisphenol a |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181119 Address after: 434100 Ma Shiji Town, Jiangling County, Jingzhou City, Hubei Province (Finance Institute) Patentee after: HUBEI DIMANTE TECHNOLOGY CO.,LTD. Address before: 443002 No. 8, University Road, Yichang, Hubei Patentee before: China Three Gorges University |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210325 Address after: 443009 b5-201, Yunjin community, No.8, Daxue Road, Xiling District, Yichang City, Hubei Province Patentee after: Hu Bin Address before: 434100 Ma Shiji Town, Jiangling County, Jingzhou City, Hubei Province (Finance Institute) Patentee before: HUBEI DIMANTE TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220523 Address after: 443000 No. C2, 4th floor, industrial building, Three Gorges cloud computing building, No. 57-6, development avenue, Yichang District, China (Hubei) free trade zone, Yichang City, Hubei Province Patentee after: Yichang Hengyi Yasheng Technology Co.,Ltd. Address before: 443009 b5-201, Yunjin community, No.8, Daxue Road, Xiling District, Yichang City, Hubei Province Patentee before: Hu Bin |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240112 Address after: No.25 Xihu Road, Xiling District, Yichang City, Hubei Province Patentee after: Yichang Jinshi Scientific Instrument Co.,Ltd. Address before: 443000 No. C2, 4th floor, industrial building, Three Gorges cloud computing building, No. 57-6, development avenue, Yichang District, China (Hubei) free trade zone, Yichang City, Hubei Province Patentee before: Yichang Hengyi Yasheng Technology Co.,Ltd. |