CN213580803U - Single-channel ion chromatograph leacheate fast switching device - Google Patents
Single-channel ion chromatograph leacheate fast switching device Download PDFInfo
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- CN213580803U CN213580803U CN202022318840.6U CN202022318840U CN213580803U CN 213580803 U CN213580803 U CN 213580803U CN 202022318840 U CN202022318840 U CN 202022318840U CN 213580803 U CN213580803 U CN 213580803U
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Abstract
The utility model provides a single channel ion chromatograph leacheate quick switching control device relates to ion chromatograph technical field, has solved the traditional single channel ion chromatograph that exists among the prior art and has only connected a leacheate bottle, and the impurity contamination new leacheate in the old leacheate or the environment takes place during the operation easily leads to the inaccurate technical problem of testing result. The device includes the special bottle of anion leacheate, holds the high-purity water bottle and the special bottle of cation leacheate of sparge water, and wherein, the special bottle of anion leacheate, high-purity water bottle and the special bottle of cation leacheate all are connected with the female pipe of leacheate on the chromatograph host computer, and are provided with the isolating valve respectively on the pipeline that the special bottle of anion leacheate, high-purity water bottle and the special bottle of cation leacheate is connected with the female pipe of leacheate. The utility model is used for the fast switch-over when negative and positive ion analysis.
Description
Technical Field
The utility model belongs to the technical field of the ion chromatograph technique and specifically relates to a single channel ion chromatograph leachate fast switch over device is related to.
Background
The principle of the ion chromatograph is that when different ions of the same electric property move along with a mobile phase in a chromatographic column, the adsorption capacity of the ions by the chromatographic column is different from the elution capacity of an eluent, the ions of different types can be separated and detected item by utilizing the difference, and the concentration of each component is calculated according to the signal of a detector. The ion chromatograph may be equipped with an anion exchange chromatography column (anion column) and a cation exchange chromatography column (cation column) for detecting anions and cations in the sample, respectively.
Because the chromatographic column interface and the eluent inlet unit of the traditional single-channel ion chromatograph are single channels, and the anion and cation eluents are contained in one bottle, namely only one chromatographic column and the corresponding eluents thereof (see the attached figure 1) can be used at the same time, the anion and the cation can not be analyzed simultaneously. In actual work, the anions and the cations in the same or different samples are often analyzed, so that one type of ions needs to be analyzed first, the leacheate is poured out after the analysis is finished, the leacheate bottle and the pipeline are washed clean by high-purity water, the chromatographic columns and the leacheate of the other type of ions are replaced, the new leacheate is used for washing until the analysis baseline is stable, and finally the other type of ions are analyzed.
The above operation consumes a lot of time, wastes medicines, and is liable to cause the situation that the old leacheate or impurities in the environment pollute the new leacheate and then enter an analysis system, resulting in inaccurate measurement results. The applicant has found that the prior art has at least the following technical problems:
(1) the following factors are easy to cause residual old leacheate or impurities in the environment to pollute new leacheate and then enter an analysis system, so that the measurement result is inaccurate:
the old leacheate often contains a certain component to be detected in a sample to be detected after switching, and the concentration of the old leacheate is very high relative to the concentration of the sample, so that the system is not easy to thoroughly wash.
Secondly, the interior of the cylindrical filter arranged at the inlet of the leacheate pipe is of a porous structure, so that the old leacheate is difficult to completely elute and replace from the cylindrical filter in a flushing mode.
When the leacheate is replaced, the inner side of the bottle cap, the outer side of the leacheate pipe in the bottle and the outer part of the filter are easily polluted by impurities in the environment in the processes of taking down and refilling.
(2) The porous structure of the filter and the entire interior of the eluent tube require the main chromatographic pump to be activated for rinsing, but because of its low flow rate (generally not more than 5mL/min), it takes a lot of time to completely rinse.
(3) Every time the anion and cation analysis is switched, the eluent needs to be prepared and replaced again, the workload is increased, and meanwhile, the medicine waste is caused.
(4) The original bottle of leacheate is mostly made of glass material and can slowly release Na+It is not suitable for measuring Na+The cationic leacheate of (1).
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a single channel ion chromatograph leacheate quick switching control device, the traditional single channel ion chromatograph who has solved existence among the prior art only connects a leacheate bottle, and the impurity pollution new leacheate in the old leacheate or the environment of taking place easily during the operation leads to the inaccurate technical problem of testing result. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a pair of single channel ion chromatograph leacheate quick switching control device, including the special bottle of anion leacheate, hold the high pure water bottle and the special bottle of cation leacheate of sparge water, wherein, the special bottle of anion leacheate the high pure water bottle and the special bottle of cation leacheate all is connected with the female pipe of leacheate on the chromatograph host computer, just the special bottle of anion leacheate the high pure water bottle and the special bottle of cation leacheate with be provided with the isolating valve on the pipeline that the female pipe of leacheate is connected respectively.
Furthermore, the number of the special anion leacheate bottles, the number of the high-purity water bottles and the number of the special cation leacheate bottles are all one, and the three are connected with a leacheate main pipe on a chromatograph host through a four-way valve.
Furthermore, the pipelines of the special bottle for the anion leacheate, the high-purity water bottle and the special bottle for the cation leacheate which are connected with the four-way valve are respectively provided with an isolating valve.
Furthermore, the high-purity water bottle and the bottle body of the special bottle for the cation leacheate are made of polytetrafluoroethylene or polyethylene.
Furthermore, the bottle body of the bottle special for the anion leacheate is made of polytetrafluoroethylene or polyethylene materials or glass.
Further, the high-purity water bottle and the special bottle for the cation leacheate are the same; the special bottle for the anion leacheate is the same as or different from the high-purity water bottle.
Further, the special bottle for the cation leacheate comprises a cation bottle body part and a cation bottle cap part, wherein the cation bottle body part and the cation bottle cap part are detachably connected, and a pipeline insertion hole and a breathing hole are formed in the cation bottle cap part, wherein a pipeline is connected with the pipeline insertion hole through a joint with a sealing effect.
Further, be provided with the syringe needle filter on the bottle lid portion, the syringe needle filter is used for balanced atmospheric pressure and prevents that the impurity in the air from getting into special bottle of cation leacheate when the experiment.
Further, the filtering structure on the bottle cap of the special bottle for the anion leacheate is the same as or different from the filtering structure on the bottle cap of the special bottle for the cation leacheate.
Furthermore, the tail ends of the pipelines respectively extending into the special anion leacheate bottle, the high-purity water bottle and the special cation leacheate bottle are provided with filters.
The utility model provides a single channel ion chromatograph leachate fast switch over device has set up three kinds of special bottles, is used for holding anion leachate, sparge water and cation leachate respectively, and three special bottle all is connected with the female pipe of leachate, and when negative, cation analysis switches over, only needs to switch over earlier to high-purity water, and the female pipe of the clean leachate switches over to another kind of leachate to this fast switch over that realizes the leachate.
The utility model discloses preferred technical scheme can also produce following technological effect at least:
the high-purity water bottle and the bottle body of the bottle special for the cation leacheate are made of polytetrafluoroethylene or polyethylene materials, so that Na slow release caused by a glass bottle is effectively avoided+Na caused by contamination of cation leacheate+The measurement is inaccurate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art single channel ion chromatograph connected to a common rinse bottle;
fig. 2 is a schematic diagram of a structure in which a single-channel ion chromatograph eluent fast switching device provided by the embodiment of the present invention is connected to an ion chromatograph.
In the figure, 1-a special bottle for anion leacheate; 2-high purity water bottle; 3-a bottle special for cation leacheate; 4-four-way; 5-an isolation valve; 6-main pump; 7-a six-way valve; 8-a chromatographic column; 9-public drench lotion bottle; 10-a needle filter; 11-a filter.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-2, the utility model provides a single channel ion chromatograph leacheate quick switching control equipment, including anion leacheate special bottle 1, hold high pure water bottle 2 and the special bottle 3 of cation leacheate of sparge water, wherein, anion leacheate special bottle 1, high pure water bottle 2 and the special bottle 3 of cation leacheate all are connected with the female pipe of leacheate on the chromatograph host computer, and are provided with isolation valve 5 on the pipeline that anion leacheate special bottle 1, high pure water bottle 2 and the special bottle 3 of cation leacheate are connected with the female pipe of leacheate respectively. Because the chromatographic column interface and the eluent inlet unit of the traditional single-channel ion chromatograph are single channels, and the anion and cation eluents share one bottle for containing, namely only one chromatographic column and the corresponding eluents thereof (see the attached figure 1) can be used at the same time, the problems of medicine waste, and easy pollution of old eluents or impurities in the environment to new eluents and subsequent entering of an analysis system exist in the operation process. The utility model provides a single channel ion chromatograph leachate fast switch over device has set up three kinds of special bottles, is used for holding anion leachate, sparge water and cation leachate respectively, and three special bottle all is connected with the female pipe of leachate, and when negative, cation analysis switches over, only needs to switch over earlier to high-purity water, and the female pipe of the clean leachate switches over to another kind of leachate to this fast switch over that realizes the leachate.
As the embodiment of the utility model provides an optional implementation mode, the number of the special bottle of anion leacheate 1, high pure water bottle 2 and the special bottle of cation leacheate 3 is one, and the three is connected through cross 4 and the mother pipe of leacheate on the chromatograph host computer. Referring to fig. 2, it is shown that a bottle 1 dedicated to anion leacheate, a bottle 2 dedicated to high purity water and a bottle 3 dedicated to cation leacheate are connected with a leacheate main pipe through a cross joint 4.
As the embodiment of the utility model provides an optional implementation mode, be provided with isolating valve 5 on the pipeline that special bottle 1 of anion leacheate, high-purity water bottle 2 and the special bottle 3 of cation leacheate and cross 4 are connected respectively. For example, when anion analysis is performed, the isolation valve 5 on the line connected to the anion elution liquid-dedicated bottle 1 is opened, and the other two isolation valves 5 are closed.
As the embodiment of the utility model can be selected, the high-purity water bottle 2 and the bottle body of the special bottle 3 for the cation leacheate are made of polytetrafluoroethylene or polyethylene material, thereby effectively avoiding Na released slowly by the glass bottle+Na caused by contamination of cation leacheate+The measurement is inaccurate. The bottle body of the special bottle 1 for the anion leacheate is made of polytetrafluoroethylene or polyethylene materials or glass.
As an optional implementation manner of the embodiment of the present invention, the high purity water bottle 2 and the special cation leacheate bottle 3 are the same, that is, the preparation methods of the high purity water bottle 2 and the special cation leacheate bottle 3 are the same; the special anion leacheate bottle 1 is the same as or different from the high-purity water bottle 2, namely the material of the special anion leacheate bottle 1 can be different from that of the high-purity water bottle 2.
As an optional implementation manner of the embodiment of the present invention, the cation leacheate special bottle 3 includes a cation bottle body part 31 and a cation bottle cap part 32, the cation bottle body part 31 and the cation bottle cap part 32 are detachably connected, the cation bottle body part 31 and the cation bottle cap part 32 are in threaded connection, and the cation bottle cap part 32 is provided with a pipeline insertion hole and a breathing hole, wherein the pipeline and the pipeline insertion hole are connected through a joint having a sealing function. The bottle cap 32 is provided with a needle filter 10 for balancing air pressure during the experiment and preventing impurities in the air from entering the special bottle.
As the embodiment of the utility model provides an optional implementation mode, the filtration on the special bottle of anion leacheate 1 bottle lid is the same or different with the filtration on the special bottle of cation leacheate 3 bottle lid. The filtering structure on the bottle cap of the special bottle 1 for the anion leacheate can filter through the contained soda lime material; the bottle cap of the special bottle 3 for the cation leacheate can be provided with a needle filter 10 for filtration.
As an optional implementation manner of the embodiment of the present invention, the end of the pipeline respectively extending into the anion-leacheate special bottle 1, the high-purity water bottle 2 and the cation-leacheate special bottle 3 is provided with a filter 11.
Example 1:
the utility model provides a single channel ion chromatograph leacheate quick switching control device, including anion leacheate special bottle 1, hold high pure water bottle 2 and the special bottle 3 of cation leacheate of sparge water, anion leacheate special bottle 1, the number of high pure water bottle 2 and the special bottle 3 of cation leacheate is one, and the three is connected through the female pipe of leacheate on cross 4 and the chromatograph host computer, anion leacheate special bottle 1, be provided with isolation valve 5 on the pipeline that special bottle 3 of high pure water bottle 2 and cation leacheate and cross 4 are connected respectively. The high-purity water bottle 2 and the bottle body of the special bottle 3 for the cation leacheate are made of polytetrafluoroethylene or polyethylene, and the bottle body of the special bottle 1 for the anion leacheate is made of glass. The bottle caps of the high-purity water bottle 2 and the special bottle 3 for the cation leacheate are provided with the needle filters 10, the filtering precision of the needle filters 10 is 0.45 mu m, and the needle filters are used for balancing air pressure and preventing impurities in air from entering the special bottles during experiments. The bottle cap of the special bottle 1 for anion leacheate is provided with a filtering structure for preventing impurities in air from entering.
The fast switching device may be specifically prepared as follows:
taking a cross joint, disconnecting a leacheate conveying pipe between a common leacheate bottle 9 and a chromatograph host from the middle, and taking the original common leacheate bottle 9 as an anion leacheate special bottle 1; two polytetrafluoroethylene or polyethylene bottles are added to be used as a high-purity water bottle 2 for containing washing water and a special cation leacheate bottle 3, a filter 11 is respectively arranged at a liquid suction pipe opening in each bottle, and a needle filter is respectively arranged on a bottle cap (the bottle caps of the high-purity water bottle 2 and the special cation leacheate bottle 3); connecting a special anion leacheate bottle 1, a high-purity water bottle 2 and a special cation leacheate bottle 3 to a cross joint 4 respectively, wherein connecting pipes are made of polytetrafluoroethylene or polyethylene, each connecting pipe is provided with an isolating valve 5, and a leacheate main pipe connected with a chromatograph main machine is connected to the cross joint 4; and finally, the interior of each bottle and all pipelines are washed clean, the tightness of each interface is checked and confirmed to be good, no air leakage and liquid leakage phenomena occur, and respective working liquids are respectively contained for standby, so that the preparation of the rapid switching device is completed.
The utility model provides a fast switching device's advantage embodies in following several aspects: the method effectively avoids the pollution of the new leacheate caused by the possibly residual old leacheate; secondly, the parts in the bottle contacting the leacheate are effectively prevented from being polluted by impurities in the environment in the processes of taking down and refilling; thirdly, effectively avoids Na slowly released by the glass bottle+Na caused by contamination of cation leacheate+Inaccurate measurement; when the leacheate is switched, only the flow parts of the leacheate main pipe and the main system with extremely small volumes need to be washed, so that the switching time is greatly shortened, and the working efficiency is improved; the switching operation amount is reduced, and meanwhile, the system error brought by human factors is also reduced; sixthly, the frequent preparation and the waste of the leacheate are effectively avoided.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A single-channel ion chromatograph leacheate rapid switching device is characterized by comprising a special anion leacheate bottle (1), a high-purity water bottle (2) for containing rinsing water and a special cation leacheate bottle (3), wherein,
the special anion leacheate bottle (1), the high-purity water bottle (2) and the special cation leacheate bottle (3) are connected with a leacheate main pipe on a chromatograph host, and the special anion leacheate bottle (1), the high-purity water bottle (2) and the special cation leacheate bottle (3) are respectively provided with an isolation valve (5) on a pipeline connected with the leacheate main pipe.
2. The device for rapidly switching the single-channel ion chromatograph eluent according to claim 1, wherein the number of the anion eluent special bottle (1), the high-purity water bottle (2) and the cation eluent special bottle (3) is one, and the three are connected with an eluent main pipe on a chromatograph main machine through a four-way (4).
3. The device for rapidly switching single-channel ion chromatograph eluents according to claim 2, wherein the pipelines connecting the anion-eluent special bottle (1), the high-purity water bottle (2) and the cation-eluent special bottle (3) with the four-way valve (4) are respectively provided with an isolation valve (5).
4. The device for rapidly switching single-channel ion chromatograph eluents according to claim 1, wherein the high-purity water bottle (2) and the cation eluent special bottle (3) are made of polytetrafluoroethylene or polyethylene.
5. The device for rapidly switching single-channel ion chromatograph leacheate according to claim 1, wherein the body of the special anion leacheate bottle (1) is made of polytetrafluoroethylene or polyethylene or glass.
6. The device for rapidly switching a single-channel ion chromatograph eluate according to claim 1, 4 or 5, wherein the high-purity water bottle (2) and the cation eluate dedicated bottle (3) are identical; the special anion leacheate bottle (1) is the same as or different from the high-purity water bottle (2).
7. The device for rapidly switching the single-channel ion chromatograph eluent according to claim 6, wherein the cation eluent dedicated bottle (3) comprises a cation bottle portion (31) and a cation bottle cover portion (32), the cation bottle portion (31) and the cation bottle cover portion (32) are detachably connected, and a pipeline insertion hole and a breathing hole are formed in the cation bottle cover portion (32), wherein a pipeline and the pipeline insertion hole are connected through a joint with a sealing function.
8. The device for rapidly switching single-channel ion chromatograph eluent according to claim 7, wherein a needle filter (10) is arranged on the bottle cap portion (32), and the needle filter (10) is used for balancing air pressure and preventing impurities in air from entering the special cation eluent bottle (3) during experiment.
9. The device for rapidly switching single-channel ion chromatograph eluents according to claim 6, wherein the filtration structure on the bottle cap of the anion-eluent special bottle (1) is the same as or different from the filtration structure on the bottle cap of the cation-eluent special bottle (3).
10. The rapid single-channel ion chromatograph eluent switching device according to claim 1, wherein the ends of the pipes respectively extending into the anion eluent special bottle (1), the high-purity water bottle (2) and the cation eluent special bottle (3) are provided with filters (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022318840.6U CN213580803U (en) | 2020-10-16 | 2020-10-16 | Single-channel ion chromatograph leacheate fast switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022318840.6U CN213580803U (en) | 2020-10-16 | 2020-10-16 | Single-channel ion chromatograph leacheate fast switching device |
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| Publication Number | Publication Date |
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| CN213580803U true CN213580803U (en) | 2021-06-29 |
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| CN202022318840.6U Active CN213580803U (en) | 2020-10-16 | 2020-10-16 | Single-channel ion chromatograph leacheate fast switching device |
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