CN109704444A - A kind of Bipolar Membrane cation suppressor - Google Patents
A kind of Bipolar Membrane cation suppressor Download PDFInfo
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- CN109704444A CN109704444A CN201910169674.7A CN201910169674A CN109704444A CN 109704444 A CN109704444 A CN 109704444A CN 201910169674 A CN201910169674 A CN 201910169674A CN 109704444 A CN109704444 A CN 109704444A
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Abstract
The invention patent discloses a kind of Bipolar Membrane cation suppressor of analysis instrument critical component design and manufacturing technology field, from top to bottom successively includes passing through upper layer electrolytic cell cover board, cathode electrode, upper layer regenerated liquid channel support face, intermediate isolating layer, lower layer's regenerated liquid channel support face, anode electrode and lower layer's electrolytic cell cover board；Anionic membrane is equipped between intermediate leacheate channel and lower layer's regenerated liquid channel, Bipolar Membrane is equipped between upper layer regenerated liquid channel and intermediate leacheate channel, wherein the cavity block of Bipolar Membrane is respectively equipped with the through-hole for liquid disengaging facing towards intermediate leacheate channel, and on Bipolar Membrane and anionic membrane.This patent replaces anionic membrane-anionic membrane in traditional design to combine using Bipolar Membrane-amberplex combination, it avoids using unstable anionic membrane in the alkaline solution of cathodic region, it can be improved the service life of positive suppressor, and design structure is simple, it is easy to assembly.
Description
Technical field
The design of the invention patent analysis instrument critical component and manufacturing technology field, particularly it is a kind of using electrodialysis and
The directional migration that ion is realized under amberplex collective effect, one kind that pickling solution in ion chromatography is transformed into pure water are bipolar
Film cation suppressor.
Background technique
Ion chromatography is one of most common analytical technology of present analysis ionic sample.Electric conductivity detector is ion chromatography
The detection pattern of instrument standard configuration, response theory are the products based on ion concentration He its ionic mobility.Hydrogen ion it is all sun from
There is highest ionic mobility, therefore sour leacheate upper response in electric conductivity detector is very high, therefore is also easy to produce big in son
It is low to eventually lead to system signal noise ratio for ambient noise.On the one hand acid leacheate can be changed into pure water by suppressor, reduce background
Noise, while the associated anion of cation can be changed into hydroxyl and can significantly improve the detection signal of target sample,
To greatly improve the signal-to-noise ratio of sample analysis.
Electroluminescent membrane suppressor is inhibition ion needed for generating suppressor based on electrolysis water principle, is current ion chromatography system
The suppressor technology of system latest generation.Electroluminescent membrane suppressor is usually sandwich structure, and two layers of amberplex respectively will be intermediate
Leacheate channel and the regenerated liquid channel separations of two sides come.Two electrodes (anode and cathode) are respectively placed in two sides regeneration
In liquid channel.
For the electroluminescent membrane suppressor of cation of analysis cation, it is using the identical anionic membrane of two panels point
The regenerated liquid channel separation in intermediate leacheate channel and two sides is not come.Under electric field action, the regeneration of cathodic region side
In liquid channel, i.e., in the hydroxide ion that cathodic region water electrolysis generates by (being somebody's turn to do in anionic membrane electromigration to leacheate channel
Also the generation of hydrogen is accompanied by electrolytic process), occur to neutralize with the hydrogen ion in acid leacheate (such as methane sulfonic acid) anti-
Pure water should be produced；At the same time with anion (such as the methane sulfonic acid root) electromigration of hydrogen ion pairing by anode surveys it is negative from
Sub- film enters in the regenerated liquid channel of anode region.The inhibition to acid leacheate can be realized in this process.Since pure water is in electricity
Lead non-conductive on detector, therefore the background signal of electric conductivity detector output is very low, and ambient noise is also corresponding very low；Work as sample
The chloride ion yin that meeting electromigration is surveyed by anode under electric field action after product (such as sodium chloride) enter suppressor, in sample
Ionic membrane enters in the regenerated liquid channel of anode region, and the sodium ion in sample by cathodic region anionic membrane repulsion and can not
It enters in the regenerated liquid channel of cathodic region side and can only rest in leacheate channel, the hydrogen-oxygen come with cathodic region electromigration
Radical ion, which combines, becomes sodium hydroxide.Sodium chloride equimolar so is just changed into equimolar sodium hydroxide.And hydroxyl from
The mobility of son is much higher than chloride ion, thus sample sodium chloride due to suppressor effect and be changed into the hydroxide of higher response
Sodium.So suppressor may be implemented to significantly improve system signal noise ratio.
Electroluminescent film sun suppressor mentioned above reporting at present or commercialization is to use two panels anionic membrane to construct
It forms.But there is obvious shortcoming in the anionic membrane being commercialized at present, be exactly that anionic membrane is easy in cathodic region, alkaline solution
The service life and operation stability of suppressor are degraded (i.e. generally known Hoffmann rearrangement reaction) and are directly influenced in generation.
Therefore the service life of cation suppressor is significantly lower than mutually isostructural anion suppressor at present, it is still necessary to further grind
Study carefully.
A kind of amberplex-the Bipolar Membrane for the specific type being commonly used in existing sea water desalination industry, it is by one
Piece anionic membrane and a piece of cationic membrane are suppressed by special process.Its characteristic and simple anionic membrane and simple sun
Ionic membrane is significantly different, is considered as being different from the third amberplex of anionic membrane and cationic membrane.A large number of studies show that
The enhancing dissociation of water can occur for the transition zone between the anion film surface of Bipolar Membrane and cationic film surface, i.e., a hydrone can solve
From at a hydroxide ion and a hydrogen ion.The dissociation process is different from water electrolysis process, the former is not related to gas
It generates, and it is relatively low to solve ionization voltage, and the latter is related to the generation of gas, and decomposition voltage is relatively high.The generation and work of gas
Final energy consumption can directly be reduced by making voltage decline.In cation suppressor, there has been no texts with anionic membrane combined application for Bipolar Membrane
Offer report.
Patent of invention content
The technical issues of solution
For the problems in existing background, the invention patent provides a kind of Bipolar Membrane cation suppressor.
Technical solution
In order to achieve the above object, the invention patent is achieved by the following technical programs:
A kind of Bipolar Membrane cation suppressor successively includes the upper layer electrolytic cell lid being connected by fastening screw from top to bottom
Plate, upper layer regenerated liquid channel support face, intermediate isolating layer, lower layer's regenerated liquid channel support face and lower layer's electrolytic cell cover board；Institute
It states to respectively correspond on the surface in upper layer regenerated liquid channel support face, intermediate isolating layer and lower layer's regenerated liquid channel support face and be equipped with
It upper layer regenerated liquid channel, intermediate leacheate channel and lower layer's regenerated liquid channel and mutually circulates for leacheate, regenerated liquid
Through-hole；And the cathode electrode connected on one end and the upper layer electrolytic cell cover board is equipped in upper layer regenerated liquid channel, it is described
The anode electrode connected on one end and lower layer's electrolytic cell cover board is equipped in lower layer's regenerated liquid channel.
Anionic membrane, upper layer regenerated liquid channel are equipped between the intermediate leacheate channel and lower layer's regenerated liquid channel
Bipolar Membrane (cathodic coating for replacing traditional cation suppressor to use using Bipolar Membrane) is equipped between intermediate leacheate channel,
And the anode membrane face of the Bipolar Membrane and the cavity block face of Bipolar Membrane are directional: Bipolar Membrane cavity block facing towards intermediate leacheate channel,
Bipolar Membrane anode membrane is facing towards cathode；The through-hole is respectively equipped on Bipolar Membrane and the anionic membrane.
The Bipolar Membrane cation suppressor suppression mode is generated from traditional cation suppressor inhibits the mode of ion different.
Traditional cation suppressor is that reduction reaction is occurred and is generated hydroxyl required for inhibiting acid based on water electrolysis, that is, hydrone
Ion, while the generation hydrogen.And a piece of anionic membrane and a piece of Bipolar Membrane are used in the invention patent, inhibit ion hydroxyl
It is the enhancing dissociation based on hydrone in Bipolar Membrane that ion, which generates, and non-aqueous solution electrolysis.It is not related to any hydrogen in the dissociation process
Generation.In addition, being not directly contacted with, avoiding above-mentioned with cathode electrode since the cavity block of Bipolar Membrane is facing towards leacheate channel
Possible degradation reaction occurs, and is conducive to the service life for improving suppressor.
Further, upper layer regenerated liquid channel, the through-hole at the intermediate leacheate channel are respectively that leacheate is logical
Road entrance, leacheate channel outlet, regenerated liquid feeder connection, regenerated liquid channel outlet；It is logical at lower layer's regenerated liquid channel
Hole is respectively regenerated liquid feeder connection and regenerated liquid channel outlet；The efflux of cation chromatographic column is by leacheate feeder connection stream
Through intermediate leacheate channel, enter detection cell from the outflow of leacheate channel outlet；Regenerated liquid is flowed respectively by regenerated liquid feeder connection
Behind upper layer regenerated liquid channel and lower layer's regenerated liquid channel, enter waste liquid from the outflow of regenerated liquid channel outlet.
Further, the cathode electrode and the anode electrode use porous platinum electrode structure.
Further, the cathode electrode and anode electrode are tightly attached to upper layer regenerated liquid channel support face and lower layer again respectively
The outside in raw liquid channel support face.
Further, the Bipolar Membrane and anionic membrane are ion exchange plate membrane in shape.
Further, the solution into intermediate leacheate channel is acid solution, or the acid solution of doping salting liquid, wherein acid
The molar ratio of solution and salting liquid is greater than 50,000 times.
Further, the acid solution into intermediate leacheate channel is inertia acid, such as methane sulfonic acid, sulfuric acid.
Further, the cathode electrode and the external constant current supply of anode electrode or stiff.
Further, when anionic membrane is changed to cationic membrane, cationic membrane position is exchanged with bipolar film location, and yin
Pole electrode is exchanged simultaneously with anode electrode position, and cationic battery membrane suppressor can be used as the electroluminescent membrane suppressor of anion at this time
It uses.
Beneficial effect
It is had the following beneficial effects: compared with known publicly-owned technology using the technical solution that the invention patent provides
The present invention replaces the anionic membrane of cathodic region side in common cation suppressor using the Bipolar Membrane that can dissociate water,
Since the anode membrane face side of Bipolar Membrane is located at cathodic region, and Bipolar Membrane cavity block face side is not directly contacted with cathodic region, therefore is kept away
Exempt from the possibility that Hofmann degradation occurs for anionic membrane in traditional design, structure is simple, and it is easy to assembly, effectively improve work effect
Rate, and strengthen the online inhibition of sour leacheate in ion chromatography field.
Detailed description of the invention
It, below will be to embodiment in order to illustrate more clearly of the invention patent embodiment or technical solution in the prior art
Or attached drawing needed to be used in the description of the prior art is briefly described.It should be evident that the accompanying drawings in the following description is only
It is some embodiments of the invention patent, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the operation principle schematic diagram of the invention patent.
Fig. 2 is the structural schematic diagram of the invention patent.
Fig. 3 is the assembling schematic diagram of the invention patent.
Fig. 4 is the voltage-current curve of the invention patent.
Fig. 5 is that the invention patent Bipolar Membrane cation suppressor inhibits efficiency.
Fig. 6 is that the invention patent Bipolar Membrane cation suppressor in a few days operates repeatability.
Fig. 7 is that same date ion retention time on same Bipolar Membrane cation suppressor does not change table to the present invention.
Fig. 8 is that same date ion peak height response on same Bipolar Membrane cation suppressor does not change table to the present invention.
Figure label:
The upper layer A- regenerated liquid channel；Leacheate channel among B-；C- lower layer regenerated liquid channel；The upper layer 1- electrolytic cell cover board；
2- cathode electrode；The upper layer 3- regenerated liquid channel support face；4- Bipolar Membrane, 401- anode membrane face；402- cavity block face；5- intermediate isolating
Layer；6- anionic membrane；7- lower layer regenerated liquid channel support face；8- anode electrode；9- lower layer electrolytic cell cover board；10- leacheate is logical
Road entrance；11- leacheate channel outlet；12- regenerated liquid feeder connection；13- regenerated liquid channel outlet；14- fastening screw.
Specific embodiment
To keep the purposes, technical schemes and advantages of the invention patent embodiment clearer, below in conjunction with of the invention special
The technical solution in the invention patent embodiment is clearly and completely described in attached drawing in sharp embodiment.Obviously, it is retouched
The embodiment stated is the invention patent a part of the embodiment, instead of all the embodiments.Based on the implementation in the invention patent
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the invention patent protection.
The invention patent is further described below with reference to embodiment.
Embodiment 1, in conjunction with Fig. 1, Bipolar Membrane cation suppressor operating principle described in the invention patent is as follows: in electricity
Under field action, the hydroxide ion that hydrone enhancing dissociation generates in Bipolar Membrane passes through cavity block face (402) electromigration of Bipolar Membrane
H in intermediate leacheate channel (B) and channel+Y-Solution (H+Y-It is acid solution, and is electrically inert acid.The most common inertia acid is
Methane sulfonic acid) in hydrogen ion neutralization reaction occur generate water, and H+Y-Y in solution-Ion is moved by anionic membrane (6) electricity
It moves in lower layer's regenerated liquid channel (C), therefore H during this+Y-The final product of solution is water, realizes cation suppressor
To H+Y-The online inhibition of solution.
In conjunction with Fig. 2, a kind of Bipolar Membrane cation suppressor, successively include from top to bottom by fastening screw 14 be connected it is upper
Layer electrolytic cell cover board 1, upper layer regenerated liquid channel support face 3, intermediate isolating layer 5, lower layer's regenerated liquid channel support face 7 and lower layer
Electrolytic cell cover board 9；The surface in upper layer regenerated liquid channel support face 3, intermediate isolating layer 5 and lower layer's regenerated liquid channel support face 7
On respectively correspond equipped with upper layer regenerated liquid channel A, centre leacheate channel B and lower layer's regenerated liquid channel C and for leacheate,
The through-hole that regenerated liquid mutually circulates；And the cathode connected on one end and upper layer electrolytic cell cover board 1 is equipped in the A of upper layer regenerated liquid channel
Electrode 2 is equipped with the anode electrode 8 connected on one end and lower layer's electrolytic cell cover board 9 in lower layer's regenerated liquid channel C；Intermediate leacheate
Anionic membrane 6 is equipped between channel B and lower layer's regenerated liquid channel C, between upper layer regenerated liquid channel A and intermediate leacheate channel B
Equipped with Bipolar Membrane 4, wherein the anode membrane face 401 of Bipolar Membrane 4 is towards upper layer regenerated liquid channel A, and 402 court of cavity block face of Bipolar Membrane 4
To intermediate leacheate channel B；The through-hole for solution disengaging is respectively equipped in Bipolar Membrane 4 and anionic membrane 6.
In conjunction with Fig. 3, by the present invention after assembling in order, intermediate leacheate channel B and upper layer regenerated liquid channel A, lower layer
Regenerated liquid channel C is independent from each other.Such structure makes used in electroluminescent Bipolar Membrane cation suppressor of the invention
The cavity block face 402 of Bipolar Membrane 4 is not directly contacted with 2 place upper layer regenerated liquid channel A of cathode electrode, avoids drop mentioned above
Solution is conducive to improve suppressor operation stability and repeatability.
Further, the through-hole at upper layer regenerated liquid channel A, intermediate leacheate channel B is respectively leacheate feeder connection
10, leacheate channel outlet 11, regenerated liquid feeder connection 12, regenerated liquid channel outlet 13；Through-hole at lower layer's regenerated liquid channel C
Respectively regenerated liquid feeder connection 12 and regenerated liquid channel outlet 13；The efflux of cation chromatographic column is by leacheate feeder connection
10 flow through intermediate leacheate channel B, enter detection cell from the outflow of leacheate channel outlet 11；Regenerated liquid is by regenerated liquid feeder connection
After 12 flow separately through upper layer regenerated liquid channel A and lower layer's regenerated liquid channel C, enter waste liquid from the outflow of regenerated liquid channel outlet 13.
The operating mode of Bipolar Membrane cation suppressor of the present invention are as follows: the efflux of cation chromatographic column is by leacheate channel
Entrance 10 flows through intermediate leacheate channel B, enters detection cell from the outflow of leacheate channel outlet 11；Regenerated liquid is respectively by regenerated liquid
After feeder connection 12 flows through upper layer regenerated liquid channel A and lower layer's regenerated liquid channel C, enter from the outflow of regenerated liquid channel outlet 13 useless
Liquid.
Further, cathode electrode 2 and anode electrode 8 use porous platinum electrode structure.
Further, cathode electrode 2 and anode electrode 8 are tightly attached to upper layer regenerated liquid channel support face 3 and lower layer again respectively
The outside in raw liquid channel support face 7.
Further, Bipolar Membrane 4 and anionic membrane 6 are ion exchange plate membrane in shape.
Further, cathode electrode 2 and the external constant current supply of anode electrode 8 or stiff.
Embodiment 2, as shown in figure 4, being Bipolar Membrane cation suppressor voltage-current curve.Condition: leacheate: 25mM
Methane sulfonic acid；Flow velocity: 0.8mL/min；Sample volume: 20 μ L；Analytical column: Dionex IonPacTM CS12A；Column temperature: 35 DEG C；Sample
Product concentration: 5mg/L.It can be seen that when applying suppressor both ends application voltage less than 3V, the electric current generated in access is almost
Zero, when both ends, which apply voltage, is greater than 3V, the electric current generated in access can be improved rapidly.The water electrolysis characteristic of this and Bipolar Membrane 4
It coincide very much, i.e. only cavity block after voltage is more than certain threshold value in the threshold value of the Bipolar Membrane of different manufacturers (different) Bipolar Membrane 4
Water can just occur effectively to dissociate between face 402 and anode membrane face 401.
Embodiment 3, as shown in figure 5, being to inhibit efficiency to investigate using this Bipolar Membrane cation suppressor.Condition: condition: leaching
Washing lotion, methane sulfonic acid, 20mM；Flow velocity, 1.0mL/min；
Sample volume, 20 μ L；Chromatographic column: CS12A；Column temperature, 35C；Sample concentration, 5ppm.If Loprazolam solution is without suppression
System has high response signal (conductivity) on the electric conductivity detector in suppressor downstream.To avoid irreversible damage down
The electric conductivity detector of trip, which does not select that the Loprazolam solution not inhibited is allowed to be directly entered electric conductivity detector, but selects
It selects and (remarks: ideal to inhibit electric current about under this experiment condition is started to Bipolar Membrane electroluminescent membrane suppressor application electric current 32mA
32mA).It can be seen that the response of electric conductivity detector is still quite high, about 42 μ S/cm in the case where 32mA inhibits electric current.When apply more
After height inhibits electric current, electric conductivity detector response is remarkably decreased, such as after applying 40mA inhibition electric current, the inhibition of electric conductivity detector
Background falls to approximately 0.3 μ S/cm, and the conductance of the response signal close to pure water responds, fully meet the electroluminescent film sun of tradition from
The suppression level of son, can be considered realizes complete inhibition to the Loprazolam solution of given concentration.Electroluminescent membrane suppressor at this time
Current efficiency is by being calculated as 80% (32*100/40).Under similarity condition, using the electroluminescent film sun of the commercialization of traditional design from
The inhibition electric current that sub- suppressor is recommended is 59mA, current efficiency about 54.2%.It can be seen that Bipolar Membrane described in the invention
Cation suppressor current efficiency is higher than traditional electroluminescent membrane suppressor.
Embodiment 4, as shown in fig. 6, being that the invention patent Bipolar Membrane cation suppressor in a few days operates repeatability.Its condition
It is identical with embodiment 3.At interior continuous operation on the same day 9 times, as seen from Figure 6,6 kinds of models cations, 9 gained spectrograms
It being almost overlapped after superposition, either retention time and peak height repeatability is all highly desirable, and RSD points of retention time and peak height
Not less than 0.119% and 1.0%；In addition, the operation repeatability in the Bipolar Membrane cation suppressor different time has also been investigated,
Specific data are shown in Fig. 7 (repeatability of retention time) and Fig. 8 (repeatability of peak height).As can be seen that in the time more than 5 months
Interior, the retention time and peak height repeatability of 6 kinds of model ions are still highly desirable, this can be from retention time RSD < 1.7% and peak
High RSD < 4.4% is proven.Although it is contemplated that so long, the other components of ion chromatograph, such as the flow velocity and color that pump
Spectrum column is possible to a little bias occur.Nevertheless, the repeatability is still more satisfactory.This shows that the Bipolar Membrane cation presses down
Device processed has good operation stability.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the invention patent
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples
In can be combined in any suitable manner.
Claims (8)
1. a kind of Bipolar Membrane cation suppressor successively includes the upper layer electrolytic cell being connected by fastening screw (14) from top to bottom
Cover board (1), upper layer regenerated liquid channel support face (3), intermediate isolating layer (5), lower layer's regenerated liquid channel support face (7) and lower layer
Electrolytic cell cover board (9)；The upper layer regenerated liquid channel support face (3), intermediate isolating layer (5) and lower layer's regenerated liquid channel support
It is respectively corresponded on the surface in face (7) logical equipped with upper layer regenerated liquid channel (A), intermediate leacheate channel (B) and lower layer's regenerated liquid
Through-hole road (C) and mutually circulated for leacheate, regenerated liquid；And one end and institute are equipped in upper layer regenerated liquid channel (A)
State the cathode electrode (2) connected on upper layer electrolytic cell cover board (1), be equipped in lower layer's regenerated liquid channel (C) one end with it is described
The anode electrode (8) connected on lower layer's electrolytic cell cover board (9)；The intermediate leacheate channel (B) and lower layer's regenerated liquid channel (C)
Between be equipped with anionic membrane (6), which is characterized in that
Bipolar Membrane, the anode membrane face of Bipolar Membrane (4) are equipped between upper layer regenerated liquid channel (A) and intermediate leacheate channel (B)
(401) towards upper layer regenerated liquid channel (A), cavity block face (402) leacheate channel (B) towards the middle of Bipolar Membrane, and it is described double
The through-hole is respectively equipped on pole film (4) and the anionic membrane (6).
2. a kind of Bipolar Membrane cation suppressor according to claim 1, it is characterised in that: upper layer regenerated liquid channel
(A), the through-hole at the intermediate leacheate channel (B) be respectively leacheate feeder connection (10), leacheate channel outlet (11),
Regenerated liquid feeder connection (12), regenerated liquid channel outlet (13)；Through-hole at lower layer's regenerated liquid channel (C) is respectively to regenerate
Liquid feeder connection (12) and regenerated liquid channel outlet (13)；The efflux of cation chromatographic column is flowed by leacheate feeder connection (10)
Through intermediate leacheate channel (B), from leacheate channel outlet (11), outflow enters detection cell；Regenerated liquid is by regenerated liquid feeder connection
(12) after flowing separately through upper layer regenerated liquid channel (A) and lower layer's regenerated liquid channel (C), from regenerated liquid channel outlet (13) flow out into
Enter waste liquid.
3. a kind of Bipolar Membrane cation suppressor according to claim 1, it is characterised in that: the cathode electrode (2) and
Anode electrode (8) is tightly attached to the outside in upper layer regenerated liquid channel support face (3) and lower layer's regenerated liquid channel support face (7) respectively.
4. a kind of Bipolar Membrane cation suppressor according to claim 1, it is characterised in that: the sun of the Bipolar Membrane (4)
Film surface (401), the cavity block face (402) of Bipolar Membrane and anionic membrane (6) are ion exchange plate membrane in shape.
5. a kind of Bipolar Membrane cation suppressor according to claim 1, it is characterised in that: enter intermediate leacheate channel
(B) solution is acid solution, or the acid solution of doping salting liquid, and wherein the molar ratio of acid solution and salting liquid is more than 50,000 times.
6. a kind of Bipolar Membrane cation suppressor according to claim 1 or 5, it is characterised in that: enter intermediate leacheate
The acid solution in channel (B) is electrically inert acid.
7. a kind of Bipolar Membrane cation suppressor according to claim 1, it is characterised in that: the cathode electrode (2) and
The external constant current supply of anode electrode (8) or stiff.
8. a kind of Bipolar Membrane cation suppressor according to claim 1, it is characterised in that: when anionic membrane (6) are replaced
When for cationic membrane, cationic membrane position is exchanged with Bipolar Membrane (4) position, and cathode electrode (2) and anode electrode (8) position are same
When exchange, cationic battery membrane suppressor can be used as the electroluminescent membrane suppressor of anion at this time.
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| CN110508139A (en) * | 2019-08-28 | 2019-11-29 | 华东理工大学 | A kind of electrodialysis Micropump |
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| JP2021526460A (en) * | 2018-07-05 | 2021-10-07 | イースト チャイナ ユニバーシティ オブ サイエンス アンド テクノロジーＥａｓｔ Ｃｈｉｎａ Ｕｎｉｖｅｒｓｉｔｙ Ｏｆ Ｓｃｉｅｎｃｅ Ａｎｄ Ｔｅｃｈｎｏｌｏｇｙ | Two-membrane acid or alkaline solution online generator |
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| US11827990B2 (en) | 2018-07-05 | 2023-11-28 | East China University Of Science And Technology | Dual-membrane on-line generator for acid or alkali solution |
| CN110038440A (en) * | 2019-05-30 | 2019-07-23 | 河北工业大学 | A kind of bipolar membrane electrodialysis device and method for seawater decalcification |
| CN110038440B (en) * | 2019-05-30 | 2021-07-27 | 河北工业大学 | Bipolar membrane electrodialysis device and method for seawater decalcification |
| CN110508139A (en) * | 2019-08-28 | 2019-11-29 | 华东理工大学 | A kind of electrodialysis Micropump |
| CN110508139B (en) * | 2019-08-28 | 2021-08-03 | 华东理工大学 | Electrodialysis micropump |
| CN112569793A (en) * | 2020-12-25 | 2021-03-30 | 苏州明昊色谱技术有限公司 | Degassing-free trace anion impurity online remover and removing method in strong alkali solution |
| CN112569793B (en) * | 2020-12-25 | 2021-11-23 | 苏州明昊色谱技术有限公司 | Degassing-free trace anion impurity online remover and removing method in strong alkali solution |
| JP2023099346A (en) * | 2021-12-30 | 2023-07-12 | ダイオネックス コーポレイション | Novel configuration of ultrahigh pressure electrolytic eluent generators |
| JP7518147B2 (en) | 2021-12-30 | 2024-07-17 | ダイオネックス コーポレイション | New configuration of ultra-high pressure electrolytic eluent generator |
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