CN210720294U - Rapid interference-free leacheate generating device for ion chromatography system - Google Patents
Rapid interference-free leacheate generating device for ion chromatography system Download PDFInfo
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- CN210720294U CN210720294U CN201921068705.1U CN201921068705U CN210720294U CN 210720294 U CN210720294 U CN 210720294U CN 201921068705 U CN201921068705 U CN 201921068705U CN 210720294 U CN210720294 U CN 210720294U
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Abstract
The utility model discloses a quick non-interference leacheate generating device for an ion chromatography system, which comprises an anode chamber, a leacheate mother liquor channel, a leacheate generating channel and a cathode chamber which are arranged in sequence, wherein a bipolar membrane is arranged between the cathode chamber and the leacheate generating channel, and cation exchange membranes are arranged between the anode chamber and the leacheate mother liquor channel and between the leacheate mother liquor channel and the leacheate generating channel; the eluent mother liquor channel is communicated with the anode chamber, the anode chamber is communicated with the cathode chamber, an eluent mother liquor filling opening is arranged on the eluent mother liquor channel, a waste liquor outflow opening is arranged on the cathode chamber, and an injection end and an outflow end are arranged on the eluent generation channel. The utility model prevents the anode chamberH produced by medium electrolysis+The interference caused by the cation exchange membrane entering the eluent generation channel improves the accuracy of the concentration of the prepared eluent, the flow direction of the prepared eluent is opposite to that of the mother solution, convection is formed, the contact area of ion exchange is enlarged, and the efficiency of the ion exchange is improved.
Description
Technical Field
The utility model belongs to the technical field of ion chromatography detects, especially, relate to a quick noiseless leacheate generating device for ion chromatography system.
Background
Ion chromatography is a liquid chromatography for analyzing ions, and is a method for continuously separating, qualitatively and quantitatively analyzing various anions or cations coexisting by using the principle of ion exchange. When ion analysis is carried out, a leacheate generator is needed, which can avoid baseline drift, increase sensitivity, improve separation degree and ensure good repeatability of chromatographic peak integral, strong acid or strong base solution is usually used as leacheate buffer solution, background conductivity of the leacheate cannot be too high when the leacheate is prepared, and the leacheate with low enough concentration is usually obtained by mixing the original leacheate with water.
The currently adopted leaching solution generator mainly has a structure that an anode chamber and a cathode chamber are respectively arranged at two sides of a leaching solution generating chamber, a bipolar membrane is arranged between the anode chamber and the electrolyte storage chamber of the leaching solution generating chamber and between the anode chamber and the electrolyte storage chamber of the leaching solution generating chamber, and H generated by electrolysis in the anode chamber is generated when anion leaching solution is generated in the leaching solution generator+Can generate larger interference to the prepared leacheate and influence the concentration of the leacheate.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a quick noiseless leacheate generating device for ion chromatographic system aims at solving the problem that prior art exists among the above-mentioned background art.
In order to achieve the above object, the utility model adopts the following technical scheme:
a quick interference-free leacheate generating device for an ion chromatography system comprises a leacheate mother liquor channel, a cathode chamber, an anode chamber and a leacheate generating channel, wherein the leacheate mother liquor channel is arranged between the anode chamber and the leacheate generating channel, the cathode chamber is arranged on the other side of the leacheate generating channel, a bipolar membrane is arranged between the cathode chamber and the leacheate generating channel, a first cation exchange membrane is arranged between the anode chamber and the leacheate mother liquor channel, and a second cation exchange membrane is arranged between the leacheate mother liquor channel and the leacheate generating channel; the utility model discloses a platinum leaching solution, including anode chamber and leacheate mother liquor passageway, leacheate mother liquor passageway and anode chamber intercommunication, anode chamber and cathode chamber intercommunication, be equipped with leacheate mother liquor filling opening on the leacheate mother liquor passageway, be equipped with the waste liquid outflow mouth on the cathode chamber, the leacheate produces and is equipped with injection end and outflow end on the passageway, be equipped with Pt anode and Pt cathode in anode chamber and the cathode chamber respectively.
Preferably, the flow direction of the mother liquor in the eluent mother liquor channel is opposite to the flow direction of the prepared eluent in the eluent generation channel.
Preferably, the eluent mother liquor inlet is arranged at the lower end of the eluent mother liquor channel, the upper end of the eluent mother liquor channel is connected with the upper end of the anode chamber through a first conduit, the lower end of the anode chamber is connected with the lower end of the cathode chamber through a second conduit, and the waste liquor outlet is arranged at the upper end of the cathode chamber; the upper end of the eluent generation channel is an injection end, and the lower end of the eluent generation channel is an outflow end.
Compare in prior art's shortcoming and not enough, the utility model discloses following beneficial effect has:
(1) the utility model discloses set up leacheate mother liquor passageway between anode chamber and leacheate production passageway, all set up cation exchange membrane between anode chamber and leacheate mother liquor passageway, between leacheate mother liquor passageway and the leacheate production passageway, make the H that electrolysis produced in the anode chamber+Directly reacts with OH in the eluent mother liquor entering the anode chamber-Neutralizing, preventing H generated by electrolysis in anode chamber+The ion exchange membrane enters the eluent generation channel to form interference to influence the concentration of the eluent, and the accuracy of the concentration of the prepared eluent is effectively improved.
(2) The flow direction of the prepared leacheate in the leacheate generation channel is opposite to the flow direction of the mother liquor in the adjacent leacheate mother liquor channel, convection is formed, the contact area of ion exchange is enlarged, and the efficiency of the ion exchange is improved.
Drawings
Fig. 1 is a schematic structural diagram of a fast non-interference eluent generation device for an ion chromatography system according to an embodiment of the present invention.
In the figure: 1-eluent mother liquor injection port; 2-passage of mother liquor of leacheate; 3-a cathode chamber; 4-anode chamber; 5-eluent generation channel; 6-a first cation exchange membrane; 7-a bipolar membrane; 8-a second cation exchange membrane; 9-a first conduit; 10-a second conduit; 11-an injection end; 12-the outflow end; 13-effluent outlet; 14-Pt anode; 15-Pt cathode.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a fast non-interference leacheate generating device for an ion chromatography system comprises a leacheate mother liquor channel 2, a cathode chamber 3, an anode chamber 4 and a leacheate generating channel 5, wherein the leacheate mother liquor channel 2 is arranged between the anode chamber 4 and the leacheate generating channel 5, the cathode chamber 3 is arranged on the other side of the leacheate generating channel 5, the cathode chamber 3 and the leacheate generating channel 5 are divided by a bipolar membrane 7, the bipolar membrane 7 is specifically arranged such that one part between the cathode chamber 3 and the leacheate generating channel 5 is divided by a cation exchange membrane, the other part is divided by an anion exchange membrane, and for convenience of viewing in fig. 1, the cation exchange membranes in the bipolar membrane 7 are all shown, but it should be understood that the cation exchange membranes in the bipolar membrane 7 are not arranged side by side. A first cation exchange membrane 6 is arranged between the anode chamber 4 and the eluent mother liquor channel 2, and a second cation exchange membrane 8 is arranged between the eluent mother liquor channel 2 and the eluent generation channel 5. The upper end of the eluent mother liquor channel 2 is communicated with the upper end of the anode chamber 4 through a first conduit 9, the lower end of the anode chamber 4 is communicated with the lower end of the cathode chamber 3 through a second conduit 10, the lower end of the eluent mother liquor channel 2 is provided with an eluent mother liquor injection port 1, and the upper end of the cathode chamber 3 is provided with a waste liquor outflow port 13. The upper end of the eluent generation channel 5 is provided with a pure water injection end 11, and the lower end thereof is provided with a prepared eluent outlet end 12. The anode chamber 4 and the cathode chamber 3 are respectively provided with a Pt anode 14 and a Pt cathode 15.
The utility model discloses a theory of operation: the leacheateThe mother solution KOH is injected from the mother solution injection port 1 of the leacheate, the mother solution entering the mother solution channel 2 of the leacheate flows out from the upper end and enters the anode chamber 4 through the first conduit 9, and H generated by electrolysis in the anode chamber 4 under the condition of energizing current flows+With OH in the mother liquor flowing into the anode chamber-Neutralization, K+Then enters the eluent mother liquor channel 2 through the first cation exchange membrane 6, and H in the eluent mother liquor channel 2+Then enters the eluent generation channel 5 through the second cation exchange membrane 8; eliminate H+The interference generated when the anode chamber 4 enters the eluent mother liquor channel 2 avoids a large amount of H+Further into the leacheate generating channel 5 has an influence on the leacheate concentration. Elimination of H in anode chamber 4+The latter containing a high concentration of OH-Is introduced into the cathode compartment 3 via the second conduit 10, OH being electrolytically generated in the cathode compartment 3 in the presence of an electric current-And OH in the mother liquor-Enters the eluent generation channel 5 through the anion exchange membrane in the bipolar membrane 7, and enters the eluent generation channel 5 through the first cation exchange membrane 6 and the second cation exchange membrane 8+Enters the cathode chamber 3 through the cation exchange membrane in the bipolar membrane 7 and is discharged along a waste liquid outlet 13 along with waste liquid. The arrow direction in fig. 1 is the liquid flow direction, the flow direction of the mother liquor in the eluent mother liquor channel 2 is opposite to the flow direction of the prepared eluent in the eluent generation channel 5, convection is formed, the contact area of ion exchange is enlarged, and the efficiency of ion exchange is improved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. A quick interference-free leacheate generating device for an ion chromatography system is characterized by comprising a leacheate mother liquor channel, a cathode chamber, an anode chamber and a leacheate generating channel, wherein the leacheate mother liquor channel is arranged between the anode chamber and the leacheate generating channel, the cathode chamber is arranged on the other side of the leacheate generating channel, a bipolar membrane is arranged between the cathode chamber and the leacheate generating channel, a first cation exchange membrane is arranged between the anode chamber and the leacheate mother liquor channel, and a second cation exchange membrane is arranged between the leacheate mother liquor channel and the leacheate generating channel; the utility model discloses a platinum leaching solution, including anode chamber and leacheate mother liquor passageway, leacheate mother liquor passageway and anode chamber intercommunication, anode chamber and cathode chamber intercommunication, be equipped with leacheate mother liquor filling opening on the leacheate mother liquor passageway, be equipped with the waste liquid outflow mouth on the cathode chamber, the leacheate produces and is equipped with injection end and outflow end on the passageway, be equipped with Pt anode and Pt cathode in anode chamber and the cathode chamber respectively.
2. A rapid, non-interfering eluent generation apparatus for ion chromatography systems as recited in claim 1 in which the flow of mother liquor in the eluent mother liquor channel is counter to the flow of the formulated eluent in the eluent generation channel.
3. The apparatus of claim 2, wherein the eluent mother liquor injection port is disposed at a lower end of the eluent mother liquor channel, an upper end of the eluent mother liquor channel is connected to an upper end of the anode chamber through a first conduit, a lower end of the anode chamber is connected to a lower end of the cathode chamber through a second conduit, and the waste liquid outflow port is disposed at an upper end of the cathode chamber; the upper end of the eluent generation channel is an injection end, and the lower end of the eluent generation channel is an outflow end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921068705.1U CN210720294U (en) | 2019-07-09 | 2019-07-09 | Rapid interference-free leacheate generating device for ion chromatography system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921068705.1U CN210720294U (en) | 2019-07-09 | 2019-07-09 | Rapid interference-free leacheate generating device for ion chromatography system |
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| CN210720294U true CN210720294U (en) | 2020-06-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112782334A (en) * | 2020-12-24 | 2021-05-11 | 苏州明昊色谱技术有限公司 | Ion chromatography carbonate leacheate concentration ratio adjusting device and method |
-
2019
- 2019-07-09 CN CN201921068705.1U patent/CN210720294U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112782334A (en) * | 2020-12-24 | 2021-05-11 | 苏州明昊色谱技术有限公司 | Ion chromatography carbonate leacheate concentration ratio adjusting device and method |
| 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 |
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