CN108776162A - Electrochemical reference electrode - Google Patents
Electrochemical reference electrode Download PDFInfo
- Publication number
- CN108776162A CN108776162A CN201811086437.6A CN201811086437A CN108776162A CN 108776162 A CN108776162 A CN 108776162A CN 201811086437 A CN201811086437 A CN 201811086437A CN 108776162 A CN108776162 A CN 108776162A
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- Prior art keywords
- reference electrode
- knob
- electrochemical
- bottom knob
- pipe
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- 239000007788 liquid Substances 0.000 claims abstract description 50
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000000243 solution Substances 0.000 claims description 26
- 210000005239 tubule Anatomy 0.000 claims description 10
- 239000013078 crystal Substances 0.000 claims description 8
- 229910021607 Silver chloride Inorganic materials 0.000 claims description 6
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 4
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 4
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 4
- 235000011151 potassium sulphates Nutrition 0.000 claims description 4
- 239000012047 saturated solution Substances 0.000 claims description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 2
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical group OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical compound Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 claims description 2
- 229920001903 high density polyethylene Polymers 0.000 claims description 2
- 239000004700 high-density polyethylene Substances 0.000 claims description 2
- 229910000371 mercury(I) sulfate Inorganic materials 0.000 claims description 2
- 229920002530 polyetherether ketone Polymers 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 2
- 235000011152 sodium sulphate Nutrition 0.000 claims description 2
- YMBCJWGVCUEGHA-UHFFFAOYSA-M tetraethylammonium chloride Chemical compound [Cl-].CC[N+](CC)(CC)CC YMBCJWGVCUEGHA-UHFFFAOYSA-M 0.000 claims description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims 1
- 239000000460 chlorine Substances 0.000 claims 1
- -1 potassium tetrafluoroborate Chemical compound 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid group Chemical group S(O)(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000002848 electrochemical method Methods 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000001103 potassium chloride Substances 0.000 description 3
- 235000011164 potassium chloride Nutrition 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000840 electrochemical analysis Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- JZCCFEFSEZPSOG-UHFFFAOYSA-L copper(II) sulfate pentahydrate Chemical compound O.O.O.O.O.[Cu+2].[O-]S([O-])(=O)=O JZCCFEFSEZPSOG-UHFFFAOYSA-L 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- SDLBJIZEEMKQKY-UHFFFAOYSA-M silver chlorate Chemical compound [Ag+].[O-]Cl(=O)=O SDLBJIZEEMKQKY-UHFFFAOYSA-M 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- WUUHFRRPHJEEKV-UHFFFAOYSA-N tripotassium borate Chemical compound [K+].[K+].[K+].[O-]B([O-])[O-] WUUHFRRPHJEEKV-UHFFFAOYSA-N 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/301—Reference electrodes
Abstract
The invention discloses electrochemical reference electrode, including internal reference electrode and outer reference electrode, the internal reference electrode is located in the outer reference electrode, and the bottom of the internal reference electrode pipe has the first screw hole, and the first bottom knob is equipped in first screw hole；The internal reference electrode is communicated by first bottom knob with the outer reference electrode；The bottom of the outer reference electrode tube has the second screw hole, is equipped with the second bottom knob in second screw hole, the outer reference electrode is communicated by second bottom knob with the external world.The production method of reference electrode proposed by the present invention, it is simple and practicable, case material is not limited more, and the concentration of inside and outside reference liquid can be maintained by the structure of invention, improves reference electrode single continuous work duration.
Description
Technical field
The present invention relates to electrochemical fields, and in particular to a kind of electrochemical reference electrode, especially a kind of easily assembly exempt to tie up
The electrochemical reference electrode of shield.
Background technology
Reference electrode is a very important component in electrochemical analysis test, and reference electrode stability determines electrification
Learn the accuracy measured.More and more on-line analyses use electrochemical method at present, in order to realize non-maintaining and automation,
Long-acting, non-maintaining reference electrode just seems unusual necessity.But common reference electrode is limited by structure, is made not
It is convenient, and just to be safeguarded using the not long time, replace inside and outside reference liquid etc. so that electrochemical test method can not be accomplished
It is non-maintaining.The variation of inside and outside reference liquid concentration is the most common problem for causing reference electrode current potential to shift.General electrification
It learns in measuring, needs to be replaced frequently inside and outside reference liquid to make reference electrode current potential stablize.
Common electrochemical reference electrode constitutes stable electricity using metal/metal insoluble compound/anion solutions interface
Electrode potential.The concentration of wherein anion solutions will have a direct impact on the current potential of reference electrode.So generally use porous ceramics etc.
Material is isolated inside and outside reference liquid and reference liquid and measures solution.In addition, porous ceramics needs and reference electrode shell is incorporated in
Together, it is typically only capable to be sintered together with porous ceramics, which limit the materials of reference electrode shell as shell using glass
Material, but also the technics comparing for making reference electrode is complicated.
It proposes a kind of structure of novel reference electrode, effectively solves reference electrode making complexity and usage time is shorter
Problem is conducive to the development and popularization of electrochemical method.
Invention content
To solve problem of the prior art, non-maintaining electrochemical reference electrode is easily assembled the present invention provides a kind of, this
The production method for inventing the reference electrode proposed, it is simple and practicable, case material is not limited more, and invention can be passed through
Structure maintains the concentration of inside and outside reference liquid, improves reference electrode single continuous work duration.
Specifically, the present invention provides a kind of electrochemical reference electrode, including internal reference electrode and outer reference electrode, it is described
Internal reference electrode is located in the outer reference electrode, and the bottom of the pipe of the internal reference electrode has the first screw hole, and described first
First bottom knob is installed in screw hole；The internal reference electrode passes through first bottom knob and the outer reference electrode phase
It is logical；By controlling the elastic of first bottom knob, the rate oozed under solution in the internal reference electrode can control；It is described outer
The bottom of the pipe of reference electrode has the second screw hole, and the second bottom knob, the outer reference electricity are equipped in second screw hole
Pole is communicated by second bottom knob with the external world；By controlling the elastic of second bottom knob, can control described outer
Solution and extraneous mass exchange in reference electrode.
In some embodiments, first bottom knob and second bottom knob are screw structural, the screw
There is axial notch on the screw thread side of structure；The cross-sectional area of the axial notch is from knob bottom to knob head direction by big
Become smaller or constant.
In some embodiments, the axial notch is 2.
In some embodiments, there is cross or one on the knob head of the first bottom knob and second bottom knob
The decorative pattern of word.
In some embodiments, further include liquid storage pipe, the liquid storage pipe is connected to outer reference tube by tubule, the liquid storage
Pipe, the tubule and the outer reference tube constitute H-type structure；Optional, the caliber of the tubule is controlled at 100 to 1000 μm.
In some embodiments, the liquid level in the liquid storage pipe is higher than the liquid level in the outer reference tube；Liquid level difference is big
In 2cm or it is equal to 2cm.
In some embodiments, the saturated solution equipped with solute crystals and the solute crystals in the liquid storage pipe.
In some embodiments, the solute crystals are potassium sulfate, potassium chloride, sodium sulphate, etamon chloride, tetrafluoro
Potassium borate or potassium hyperchlorate.
In some embodiments, described easily to assemble non-maintaining electrochemical reference electrode as Ag/AgCl, Hg/Hg2Cl2、Hg/
HgO or Hg/Hg2SO4Reference electrode.
In some embodiments, the managing of the internal reference electrode, the pipe of the outer reference electrode, the first bottom knob and
Two bottom knobs are plastic material；Optional, the plastic material is PEEK, PTFE, HDPE, PP, PVC or ABS.
Provided by the invention easily to assemble non-maintaining electrochemical reference electrode, reference bottom of the tube uses helicitic texture, screw thread
On be provided with hole slot, path is oozed under solution can be made to have, in addition can control the rate oozed under solution by adjusting elasticity.For
The rate for improving lower osmometer solution, there are two grooves for tool on the screw thread of knob, as the path oozed under solution.
It is provided by the invention easily to assemble reference pipe shell inside and outside non-maintaining electrochemical reference electrode and use plastics etc.
Material is directly process, and bottom does not have to porous ceramics, inside and outside solion conducting is realized using knob structure, and limit molten
Liquid flows freely.
Outer reference is designed to H-type structure, is both to increase a liquid storage pipe, liquid storage pipe on common reference electrode outer tube
There is the solute salt in outer reference liquid bottom, ensures that outer reference liquid is in saturation state, so under normal circumstances, outer reference liquid
In solution can ensure to be constantly in saturation state；Liquid level in liquid storage pipe is higher than the liquid level in outer reference electrode, in this way
There are a pressure difference, solution is easier to flow into outer reference from liquid storage pipe the solution in the external reference tube of solution in liquid storage pipe
Pipe after preventing outer reference tube to be placed in measurement solution in this way, and measures solution and mass exchange occurs, causes in outer reference tube
Ionic species or concentration change；Outer reference tube and fluid reservoir, to connection, can prevent solute salt by intermediate tubule
Outer reference pipe sleeve is fallen into, the liquid inventory of liquid storage pipe reference tube outward can also be limited；Reference electrode can be stablized for more time
Current potential realizes long-time, non-maintaining work.
Definition and general terms
Unless otherwise indicated, the term used in the present invention in the specification and in the claims has following definitions.
Unless otherwise stated, all scientific and technical terminologies used in the present invention have with those skilled in the art of the invention's
It is generally understood identical meaning.All patents of the present invention and public publication are integrally incorporated this hair by reference
It is bright.
It will further be appreciated that certain features of the present invention, are clearly visible, are carried out in multiple independent embodiments
Description, but can also in combination be provided in single embodiment.Conversely, the various features of the present invention, for brevity,
It is described, but can also be provided individually or with any suitable sub-portfolio in single embodiment.
" knob bottom " used in the present invention refers to screw thread one end of the knob with screw structural.
" knob head " used in the present invention refers to screw terminal one end of the knob with screw structural.
Description of the drawings
An example of internal reference electrode of the present invention is shown in Fig. 1
The example for easily assembling non-maintaining electrochemical reference electrode of the present invention is shown in Fig. 2
An example (the groove cross section product of the first bottom knob (or second bottom knob) of the invention is shown in Fig. 3
From large to small)
An example (the groove cross section product of the first bottom knob (or second bottom knob) of the invention is shown in Fig. 4
It is constant) Fig. 5 be shown first bottom knob (or second bottom knob) of the invention an example upward view (A), overlook
Scheme (B)
Reference sign：
1, copper lead, 2, interior reference lid, 3, filamentary silver, 4, silver chlorate, 5, interior reference tube, the 6, first bottom knob, 7, outer ginseng
Than pipe, the 8, second bottom knob, 9, tubule, 10, liquid storage pipe, 11, solute, 12, liquid level, the 13, first screw hole, the 14, second screw hole,
15, groove
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this Shen
Illustrative embodiments and their description please do not constitute the improper restriction to the application for explaining the application.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, belongs to protection scope of the present invention.In addition, invention described below difference is implemented
Involved technical characteristic can be combined with each other as long as they do not conflict with each other in mode.
Embodiment 1
Non-maintaining electrochemical reference electrode is easily assembled, as shown in Fig. 2, described is Ag/AgCl reference electrodes..
It is above-mentioned that easily to assemble non-maintaining electrochemical reference electrode include internal reference electrode and outer reference electrode, the interior reference
Electrode is located in the outer reference electrode, and the bottom of the pipe of the internal reference electrode has the first screw hole, in first screw hole
First bottom knob is installed；The internal reference electrode is communicated by first bottom knob with the outer reference electrode；It is logical
It crosses and controls the elastic of first bottom knob, can control the rate oozed under solution in the internal reference electrode；The outer reference
The bottom of the pipe of electrode has the second screw hole, and the second bottom knob is equipped in second screw hole, and the outer reference electrode is logical
Second bottom knob is crossed to communicate with the external world；By controlling the elastic of second bottom knob, the outer reference can control
Solution and extraneous mass exchange in electrode.
First bottom knob and second bottom knob are screw structural, on the screw thread side of the screw structural
With axial notch, the cross-sectional area of the axial notch is constant from knob bottom to knob head direction.The axial notch is 2
It is a.
Decorative pattern with cross on the knob head of first bottom knob and second bottom knob.
Above-mentioned easily to assemble non-maintaining electrochemical reference electrode further include liquid storage pipe, and the liquid storage pipe passes through with outer reference tube
Tubule is connected to, and the liquid storage pipe, the tubule and the outer reference tube constitute H-type structure.Liquid level in the liquid storage pipe wants high
Liquid level in the outer reference tube.Solute crystals and its saturated solution are housed in the liquid storage pipe.The solute crystals are
Potassium sulfate, the saturated solution are saturation potassium sulfate solution.
The managing of the internal reference electrode, the pipe of the outer reference electrode, the first bottom knob and the second bottom knob are modeling
Expect material.
Embodiment 2
Above-mentioned reference electrode is applied to acid metal plating solution composition and analyzes common cyclic voltammetric stripping method (CVS) survey
Examination.Test solution foundational system is sulfuric acid+40~100mg/L of Salzburg vitriol+50~250g/L of 50~200g/L
Cl ions, because the concentration of acid and salt is all higher in test fluid, and the transfer ability of H, Cl are stronger, the influence to electrode potential compared with
Greatly, general reference electrode is required for replacing outer reference liquid daily.As 797 or 894 type CVS testers of Wan Tong companies of Switzerland use
Be all conventional Ag/AgCl reference electrodes, wherein interal reference electrolyte is KCl, AgCl solution of saturation, outer reference electrolyte
For the KNO of 1mol/L3Solution, outer reference use common porous ceramics plug.Generally require the KNO for replacing outer reference electrode daily3
Solution replaces weekly saturation KCl, the AgCl solution of reference in primary.And the QL series CVS equipment of ECI companies, using sour sulfur
Sour mercury reference electrode, outer reference liquid are 1mol/L sulfuric acid, and outer reference liquid plug is the porous ceramics of diameter about 1mm, is generally required
The sulfuric acid solution of outer reference is replaced daily.
And the reference electrode of this case design is used, it is used on the instrument of above-mentioned two different company, can realize 1
The moon is all changed without inside and outside reference electrolyte.Non-maintaining target thus may be implemented.And it is applicable not only to desktop computer, also fit
It is used when the leader of detection device in zygonema.
Operating process：It is directly used in three electrode test systems, working electrode is Pt rotating disk electrode (r.d.e)s, is to electrode
Copper electrode or Pt electrodes, reference electrode are respectively the electrode.
Experimental result：Ten thousand logical or ECI reference electrodes use or in Precerving liquid after soaked overnight, are required for replacing outer
Reference liquid, otherwise current potential drift about, electrochemical measurement can not be carried out.Electrode of the present invention can continue using 1 month and
It is changed without outer reference electrode, shows great stability advantage.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " other embodiments ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art are not departing from the principle of the present invention and objective
In the case of can make changes, modifications, alterations, and variations to the above described embodiments within the scope of the invention, the scope of the present invention
It is limited by claim and its equivalent.
Claims (10)
1. a kind of electrochemical reference electrode, including internal reference electrode and outer reference electrode, the internal reference electrode is located at described outer
In reference electrode, which is characterized in that the bottom of the internal reference electrode pipe has the first screw hole, is equipped in first screw hole
First bottom knob；The internal reference electrode is communicated by first bottom knob with the outer reference electrode；Pass through control
Elastic, the rate oozed under solution in the controllable internal reference electrode of first bottom knob；The outer reference electrode
The bottom of pipe has the second screw hole, and the second bottom knob is equipped in second screw hole, and the outer reference electrode passes through described
Second bottom knob is communicated with the external world；By controlling the elastic of second bottom knob, can control in the outer reference electrode
Solution and extraneous mass exchange.
2. electrochemical reference electrode according to claim 1, which is characterized in that first bottom knob and described second
Bottom knob is screw structural, has axial notch on the screw thread side of the screw structural；The cross section of the axial notch
Product is from large to small or constant from knob bottom to knob head direction.
3. electrochemical reference electrode according to claim 2, which is characterized in that the axial notch is 2.
4. electrochemical reference electrode according to claim 2, which is characterized in that first bottom knob and described second
Decorative pattern with cross or a word on the knob head of bottom knob.
5. according to claim 1-4 any one of them electrochemical reference electrodes, which is characterized in that further include liquid storage pipe, it is described
Liquid storage pipe is connected to outer reference tube by tubule, and the liquid storage pipe, the tubule and the outer reference tube constitute H-type structure；Appoint
Choosing, the caliber of the tubule is controlled at 100 to 1000 μm.
6. electrochemical reference electrode according to claim 5, which is characterized in that the liquid level in the liquid storage pipe is higher than institute
State the liquid level in outer reference tube；Liquid level difference is more than 2cm or is equal to 2cm.
7. electrochemical reference electrode according to claim 5, which is characterized in that in the liquid storage pipe equipped with solute crystals and
The saturated solution of the solute crystals.
8. electrochemical reference electrode according to claim 7, which is characterized in that the solute crystals are potassium sulfate, chlorine
Change potassium, sodium sulphate, etamon chloride, potassium tetrafluoroborate or potassium hyperchlorate.
9. according to claim 1-4 any one of them electrochemical reference electrodes, which is characterized in that it is described easily assemble it is non-maintaining
Electrochemical reference electrode is Ag/AgCl, Hg/Hg2Cl2, Hg/HgO or Hg/Hg2SO4Reference electrode.
10. according to claim 1-4 any one of them electrochemical reference electrodes, which is characterized in that the internal reference electrode
Pipe, the pipe of the outer reference electrode, the first bottom knob and the second bottom knob are plastic material；Optional, the plastics material
Matter is PEEK, PTFE, HDPE, PP, PVC or ABS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811086437.6A CN108776162A (en) | 2018-09-18 | 2018-09-18 | Electrochemical reference electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811086437.6A CN108776162A (en) | 2018-09-18 | 2018-09-18 | Electrochemical reference electrode |
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|---|---|
| CN108776162A true CN108776162A (en) | 2018-11-09 |
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|---|---|---|---|
| CN201811086437.6A Pending CN108776162A (en) | 2018-09-18 | 2018-09-18 | Electrochemical reference electrode |
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| US20080000771A1 (en) * | 2005-08-03 | 2008-01-03 | Takashi Kakiuchi | Reference electrode, salt bridge and ionic concentration measuring device by the use of reference electrode and salt bridge |
| US20080149482A1 (en) * | 2006-12-21 | 2008-06-26 | Healthwatchsystems, Inc. | Reference electrode and reference solutions for use therein |
| CN201358300Y (en) * | 2009-01-23 | 2009-12-09 | 韩树强 | Marine dual-permeability copper / saturated copper sulfate reference electrode |
| CN102401781A (en) * | 2011-09-28 | 2012-04-04 | 中交第四航务工程局有限公司 | Reference electrode for reinforced concrete and manufacturing method of reference electrode |
| CN202898548U (en) * | 2012-09-04 | 2013-04-24 | 中国石油天然气股份有限公司 | Anti-freezing long-acting reference electrode system |
| CN203419988U (en) * | 2013-08-15 | 2014-02-05 | 中国石油天然气股份有限公司 | Automatic temperature control long-life reference electrode |
| CN204241413U (en) * | 2014-12-03 | 2015-04-01 | 上海仪电科学仪器股份有限公司 | A kind of two salt bridge contrast electrode |
| CN204330670U (en) * | 2014-12-03 | 2015-05-13 | 上海仪电科学仪器股份有限公司 | The contrast electrode that a kind of current potential is adjustable |
| US20170038329A1 (en) * | 2015-08-06 | 2017-02-09 | Lietai Yang | High-Pressure Reference Electrode for Application in Systems Containing High-Pressure Gases |
| CN209311386U (en) * | 2018-09-18 | 2019-08-27 | 厦门悦荣欣科技有限公司 | Electrochemical reference electrode |
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