CN101915798B - Ion selective electrode - Google Patents
Ion selective electrode Download PDFInfo
- Publication number
- CN101915798B CN101915798B CN201010244486.5A CN201010244486A CN101915798B CN 101915798 B CN101915798 B CN 101915798B CN 201010244486 A CN201010244486 A CN 201010244486A CN 101915798 B CN101915798 B CN 101915798B
- Authority
- CN
- China
- Prior art keywords
- ion
- electrode
- metal film
- selective electrode
- anticorrosive material
- 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.)
- Active
Links
- 239000000463 material Substances 0.000 claims abstract description 30
- 229910052751 metal Inorganic materials 0.000 claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 27
- 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 13
- 238000004140 cleaning Methods 0.000 claims description 3
- 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
- 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
- 238000005259 measurement Methods 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.A kind of ion-selective electrode particularly.
Background technology
Ion-selective electrode is a kind of certain specific ion to be had to optionally indicator electrode, be a kind of simple, rapidly, can be for the non-destructive analysis instrument of coloured and turbid solution.Generally do not need to carry out Chemical Decomposition, do not require complicated instrument, can differentiate the existence form of different ions, can measure the sample that arrives less several microlitres.
If 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 developing rapidly in recent years.Simple owing to measuring device therefor by ion-selective electrode, easy to operate, and energy rapid Continuous Determination, it is successfully applied to the fields such as environmental monitoring, water quality and soil analysis, clinical assay, ocean expedition, industrial flow control and geology, metallurgy, agricultural, food and Pharmaceutical Analysis.
Summary of the invention
The object of this invention is to provide a kind of ion-selective electrode, internal reference electrode accessory system can be isolated in beyond severe environmental conditions, increased ion-selective electrode heatproof stability, reduced temperature drift; The antijamming capability that has further improved ion electrode detection loop, has also improved ion electrode detection sensitivity simultaneously greatly.
For solving upper technical matters, the object of the present invention is achieved like this: a kind of ion-selective electrode, in anticorrosive material bar, be provided with tinsel, 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.
Ion-sensitive film thickness is 5-50 micron.
The complete covering metal film of ion sensitive membrane.
Anticorrosive material bar is 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:
High impedance, low thermal coefficient of expansion, the high Corrosive Materia of the resistance to operating mode bar of the sufficient length 1, adopting can be isolated in internal reference electrode accessory system beyond severe environmental conditions, such as away from high temperature, increase ion-selective electrode heatproof stability, reduced temperature drift.
The 2 smooth cleanings in anticorrosive material bar two ends that adopt are also coated with and the metal film that in bar, preset tinsel material is identical, metal film covering anticorrosive material bar two ends end face or two ends end face and the periphery face respective area of joining with end face.The complete covering metal film of ion sensitive membrane, its area of ion sensitive membrane can surpass the more than 10 times of conventional ion sensitive electrode area, corresponding impedance also reduces an order of magnitude, the antijamming capability that has further improved ion electrode detection loop, has also improved ion electrode detection sensitivity simultaneously greatly.
Accompanying drawing explanation
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
An ion-selective electrode, is provided with tinsel 2 in anticorrosive material bar 1, anticorrosive material bar 1 two ends 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.
Described ion sensitive membrane 4 thickness are 5-50 micron.
The complete covering metal film 3 of described ion sensitive membrane 4.
Described anticorrosive material bar 1 is 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 adopting, 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 1 smooth cleaning in two ends of anticorrosive material bar is also coated with the metal film 3 that in bar, preset tinsel 2 materials are identical to avoid producing contact thermoelectrical potential.
The ion-selective electrode that the present invention has Low ESR, super large ion sensitive membrane 4 areas can be used separately, also can be made into according to conventional method combination electrode and use together with contrast electrode.
Claims (2)
1. an ion-selective electrode, it is characterized in that: in anticorrosive material bar (1), be provided with tinsel (2), the smooth cleaning in anticorrosive material bar (1) two ends is also coated with and metal film (3) that in bar, preset tinsel (2) material is identical, metal film (3) is communicated with tinsel (2), the outer spraying plating of metal film (3) has ion sensitive membrane (4), ion sensitive membrane (4) is covering metal film (3) completely, metal film (3) covers anticorrosive material bar (1) two ends end face, or the periphery respective area that metal film (3) covers anticorrosive material bar (1) two ends end face and joins with end face, anticorrosive material bar (1) is quartz material.
2. a kind of ion-selective electrode according to claim 1, is characterized in that: ion sensitive membrane (4) thickness is 5-50 micron.
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 CN101915798A (en) | 2010-12-15 |
| CN101915798B true 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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760862B (en) * | 2018-04-04 | 2020-09-01 | 山东特检科技有限公司 | Silver bromide electrode and preparation method thereof |
Citations (2)
| 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 |
| CN1975398A (en) * | 2006-10-24 | 2007-06-06 | 东北电力大学 | Full solid Zn ion selective electrode and producing method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7105095B2 (en) * | 2003-04-17 | 2006-09-12 | Organo Corporation | Method and apparatus for controlling concentration of water treatment chemicals |
-
2010
- 2010-08-04 CN CN201010244486.5A patent/CN101915798B/en active Active
Patent Citations (2)
| 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 |
| CN1975398A (en) * | 2006-10-24 | 2007-06-06 | 东北电力大学 | Full solid Zn ion selective electrode and producing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101915798A (en) | 2010-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Azmi et al. | Techniques in advancing the capabilities of various nitrate detection methods: A review | |
| Li et al. | Phosphate sensor using molybdenum | |
| Men et al. | A novel electronic tongue combined MLAPS with stripping voltammetry for environmental detection | |
| Nazarov et al. | Sodium-and chloride-selective microelectrodes optimized for corrosion studies | |
| Herzog et al. | On-chip electrochemical microsystems for measurements of copper and conductivity in artificial seawater | |
| Sharma et al. | Impedimetric sensors: principles, applications and recent trends | |
| CN103743804A (en) | Organic phosphorus electrochemical biosensor based on adsorption of nano particles | |
| 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 | |
| Alahi et al. | Practical nitrate sensor based on electrochemical impedance measurement | |
| Wan et al. | Design of a novel hybrid sensor with microelectrode array and LAPS for heavy metal determination using multivariate nonlinear calibration | |
| Liu et al. | Experimental and finite element method studies for femtomolar cobalt ion detection using a DHI modified nanochannel | |
| Xu et al. | The effects of antimony thin film thickness on antimony pH electrode coated with nafion membrane | |
| Noyhouzer et al. | A new electrochemical flow cell for the remote sensing of heavy metals | |
| CN101915798B (en) | Ion selective 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 | |
| CN105158310B (en) | A kind of micro-fluidic detection chip and its application based on micro-porous electrode | |
| Guo et al. | A PDMS microfluidic impedance immunosensor for sensitive detection of pesticide residues in vegetable real samples | |
| CN201740758U (en) | Ion selective electrode | |
| CN109507267B (en) | Sensing material for quickly detecting biological hydrogen sulfide and preparation method thereof | |
| Cho et al. | Underwater micro gas detector | |
| Saha et al. | Impedance spectroscopy and environmental monitoring | |
| Bai et al. | Micro cobalt electrodes for detection of total phosphorus in water | |
| Zhang et al. | A portable impedance biosensor for detection of multiple avian influenza viruses | |
| CN104049008B (en) | Preparation method for micro redox potential sensor | |
| Ping et al. | Screen-printed potentiometric strip for calcium ion determination in water and milk |
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 | ||
| 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 |
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. |
|
| TR01 | Transfer of patent right |