CN115541800B - Ion chromatograph and inhibitor thereof - Google Patents
Ion chromatograph and inhibitor thereof Download PDFInfo
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- CN115541800B CN115541800B CN202211289885.2A CN202211289885A CN115541800B CN 115541800 B CN115541800 B CN 115541800B CN 202211289885 A CN202211289885 A CN 202211289885A CN 115541800 B CN115541800 B CN 115541800B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/96—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation using ion-exchange
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/96—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation using ion-exchange
- G01N2030/965—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation using ion-exchange suppressor columns
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- Investigating Or Analysing Biological Materials (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
Abstract
The invention discloses an ion chromatograph and a suppressor thereof, belonging to the field of chromatographs. The utility model provides an ion chromatograph, includes the chromatograph, two mounting panels have been set firmly at the chromatograph top, the chromatograph top is equipped with the connecting plate, the connecting plate both ends are connected fixedly with two mounting panels respectively, the chromatograph top has set firmly the base, the mounting bracket has set firmly at the base top, automatic water injection tank has been placed to the mounting bracket inner wall, the connecting plate inner wall has set firmly the water injection pipe, the connecting pipe has set firmly to the water injection pipe outer wall, the feed liquor pipe has set firmly at the chromatograph top, the feed liquor pipe is connected fixedly with the connecting pipe. Inside will the washing liquid injection intubate through automatic water injection tank, inside will washing liquid through the intubate pours into the feed liquor pipe through the connecting pipe into, carry to the inside detection port of chromatograph through the feed liquor pipe at last in to wash chromatograph inner structure, this design can be convenient for detect personnel wash chromatograph inside, easy operation has saved operating time.
Description
Technical Field
The invention relates to the field of chromatographs, in particular to an ion chromatograph and a suppressor thereof.
Background
Ion chromatography is one of high performance liquid chromatography, and is different from traditional ion exchange chromatography in that resin has high crosslinking degree and low exchange capacity, sample injection volume is small, and the on-line automatic continuous conductivity detection of the eluent is usually carried out by using a plunger pump to convey the eluent. The principle of separation is based on the reversible exchange between dissociable ions on an ion exchange resin and solute ions of the same charge in the mobile phase and the difference in affinity of the analyte solute for the exchanger.
In the detection process, because the mobile phase to be detected by the ion chromatograph contains salt components, after the use of the ion chromatograph is finished, after the surface of the internal structure is dried, the water in the surface liquid can be evaporated, the salt separated out from the liquid can be attached to a pipeline in the ion chromatograph and the detection structure, and the structures are contacted with salt substances for a long time, so that the corrosion of the surface of a part can be caused, the service life of the part is influenced, and the machine fault is caused.
Disclosure of Invention
1. Technical problem to be solved
The present invention is directed to an ion chromatograph and a suppressor thereof, which solve the problems set forth in the background art.
2. Technical proposal
The utility model provides an ion chromatograph, includes the chromatograph, two mounting panels have been set firmly at the chromatograph top, the chromatograph top is equipped with the connecting plate, the connecting plate both ends are connected fixedly with two mounting panels respectively, the chromatograph top has set firmly the base, the base top has set firmly the mounting bracket, automatic water injection tank has been placed to the mounting bracket inner wall, the connecting plate inner wall has set firmly the water injection pipe, water injection pipe top threaded connection has the threaded rod, the threaded rod bottom passes the water injection pipe and extends to its inside, the inside sliding connection of water injection pipe has the sealing block, sealing block top and threaded rod rotate to be connected, water injection pipe inner wall sliding connection has the seal cover, seal cover and water injection pipe inner wall friction slip, seal cover inside has set firmly the intubate, the sealing block is fixed with seal cover and intubate connection respectively, the wash port has been seted up respectively to seal cover and intubate outer wall, the water injection pipe outer wall has set firmly the connecting pipe, the chromatograph top has set firmly the feed liquor pipe, feed liquor pipe and connecting pipe is fixed.
Preferably, the connecting pipe is arranged in an inclined mode, and one end of the connecting pipe, which is close to the water injection pipe, is higher than the other end of the connecting pipe.
Preferably, the mounting bracket outer wall is symmetrical structure and has seted up two mounting grooves, the mounting groove inner wall rotates and is connected with the pivot, the pivot top passes the mounting bracket and extends to its top, pivot circumference outer wall cover is equipped with the torsional spring, pivot circumference outer wall has set firmly the clamp plate, the clamp plate is located the mounting groove inside.
Preferably, one end of the torsion spring is fixedly connected with the rotating shaft, and the other end of the torsion spring is fixedly connected with the mounting frame.
Preferably, rubber columns are respectively and fixedly arranged at the inner ends of the two pressing plates, the rubber columns are in friction contact with the outer wall of the automatic water injection tank, and a handle groove is formed in the surface of each pressing plate.
Preferably, the inner wall of the liquid inlet pipe is slidably connected with a sealing plug, the bottom end of the sealing plug extends to the lower part of the connecting pipe port, the circumferential outer wall of the sealing plug is fixedly provided with a sealing cover, the top of the sealing plug is provided with a through hole, and the top of the sealing plug is provided with a groove.
Preferably, the suppressor body is arranged inside the chromatograph, the connecting wire is fixedly arranged on the outer wall of the suppressor body, two treatment boxes are fixedly arranged at the top of the suppressor body in a symmetrical structure, two connecting shafts are connected with the inner wall of the suppressor body in a symmetrical rotating mode, and gears are fixedly arranged on the circumference outer wall of the connecting shafts.
Preferably, two the processing box inner wall all is equipped with the fixed disk, the fixed disk top is symmetrical structure and has set firmly two suppression posts, fixed disk circumference outer wall rotates and is connected with the rotation cover, it is fixed with the processing box to rotate the cover, the connecting axle top passes the processing box and is connected fixedly with the fixed disk, the motor has set firmly in the inhibitor body bottom, the motor output with along inside and with the connecting axle connection fixed to the inhibitor body.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
1. inside will the washing liquid injection intubate through automatic water injection tank, inside will washing liquid through the intubate pours into the feed liquor pipe through the connecting pipe into, carry to the inside detection port of chromatograph through the feed liquor pipe at last in to wash chromatograph inner structure, this design can be convenient for detect personnel wash chromatograph inside, easy operation has saved operating time.
2. Through pressing the clamp plate simultaneously for the clamp plate drives the pivot and produces and rotate, and two clamp plate tip upset to mounting groove inside this moment, through placing automatic water injection tank inside the mounting bracket at the base top, unclamp the clamp plate, under the torsion effect of torsional spring, the clamp plate drives the pivot reverse rotation this moment, obtains the rubber column to produce the extrusion to automatic water injection tank surface through the clamp plate tip, and this design can be convenient for fix automatic water injection tank.
3. Through rotating the threaded rod for the threaded rod moves to its inside along the water injection pipe, promotes the sealing piece through the threaded rod and slides down along the water injection pipe inner wall, and sealing piece promotes intubate and seal cover and moves down this moment, and inside intubate automatic water injection tank bottom until intubate and seal cover, this design can follow automatic main water tank inside with the intubate and shift out, thereby is convenient for dismantle automatic water injection tank.
4. Through with solution injection processing incasement portion, through the inside suppression post of processing incasement portion with solution reaction, drive the connecting axle through the motor and rotate this moment, under the transmission connection of gear, two connecting axles can rotate in step this moment, drive the fixed disk through the connecting axle and rotate to can make the suppression post rotate at processing incasement portion, thereby accelerate the reaction rate with the solution between.
5. Through setting the connecting pipe to be the slope form, this design can make the inside remaining washing of connecting pipe also under the action of gravity, automatically flow to the feed liquor intraductal.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a partial structure of the present invention;
FIG. 3 is a schematic view of the installation structure of the automatic water filling tank of the present invention;
FIG. 4 is a schematic view of the internal structure of a water injection pipe according to the present invention;
FIG. 5 is a schematic view of the mounting structure of the cannula of the present invention;
FIG. 6 is a schematic view of the installation structure of the liquid inlet pipe of the invention;
FIG. 7 is a schematic view of the structure of the suppressor body of the present invention;
FIG. 8 is a schematic view of the internal structure of the suppressor body of the present invention;
fig. 9 is a schematic view of the transmission structure inside the suppressor body of the present invention.
The reference numerals in the figures illustrate: 1. a chromatograph; 2. a mounting plate; 3. a connecting plate; 4. a base; 5. a mounting frame; 6. an automatic water filling tank; 7. a mounting groove; 8. a rotating shaft; 9. a torsion spring; 10. a pressing plate; 11. a rubber column; 12. a handle groove; 13. a water injection pipe; 14. a threaded rod; 15. a sealing block; 16. a cannula; 17. sealing sleeve; 18. a drain hole; 19. a connecting pipe; 20. a liquid inlet pipe; 21. sealing cover; 22. a sealing plug; 23. a through hole; 24. a groove; 25. a suppressor body; 26. a connecting wire; 27. a treatment box; 28. a suppression column; 29. a connecting shaft; 30. a gear; 31. a rotating sleeve; 32. a fixed plate; 33. and a motor.
Detailed Description
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1-9, the present invention provides a technical solution:
the utility model provides an ion chromatograph, including chromatograph 1, chromatograph 1 top has set firmly two mounting panels 2, chromatograph 1 top is equipped with connecting plate 3, connecting plate 3 both ends are connected fixedly with two mounting panels 2 respectively, chromatograph 1 top has set firmly base 4, and base 4 top has set firmly mounting bracket 5, and automatic water injection tank 6 has been placed to mounting bracket 5 inner wall, and connecting plate 3 inner wall has set firmly water injection pipe 13, and water injection pipe 13 outer wall has set firmly connecting pipe 19, and chromatograph 1 top has set firmly feed liquor pipe 20, and feed liquor pipe 20 is connected fixedly with connecting pipe 19. The cleaning liquid is injected into the cannula 16 through the automatic water injection tank 6, is injected into the liquid inlet pipe 20 through the connecting pipe 19, and is finally conveyed into the detection port in the chromatograph 1 through the liquid inlet pipe 20, so that the internal structure of the chromatograph 1 is cleaned, and detection personnel can conveniently clean the chromatograph 1.
The connecting pipe 19 is arranged in an inclined mode, one end of the connecting pipe 19, which is close to the water injection pipe 13, is higher than the other end, and the design can enable residual cleaning liquid in the connecting pipe 19 to automatically flow into the liquid inlet pipe 20 under the action of gravity.
The mounting bracket 5 outer wall is symmetrical structure and has seted up two mounting grooves 7, the mounting groove 7 inner wall rotates and is connected with pivot 8, pivot 8 top passes mounting bracket 5 and extends to its top, pivot 8 circumference outer wall cover is equipped with torsional spring 9, torsional spring 9 one end is connected fixedly with pivot 8, the torsional spring 9 other end is connected fixedly with mounting bracket 5, the pivot 8 circumference outer wall has set firmly clamp plate 10, clamp plate 10 is located mounting groove 7 inside, rubber column 11 has been set firmly respectively to two clamp plate 10 inner, rubber column 11 and automatic water injection tank 6 outer wall frictional contact, handle groove 12 has been seted up on the clamp plate 10 surface, through under the effect of torsional spring 9, make clamp plate 10 can extrude fixedly to automatic water injection tank 6.
The top threaded connection of water injection pipe 13 has threaded rod 14, and threaded rod 14 bottom passes water injection pipe 13 and extends to its inside, and the inside sliding connection of water injection pipe 13 has sealing block 15, and sealing block 15 top and threaded rod 14 rotate to be connected, and water injection pipe 13 inner wall sliding connection has seal cover 17, and seal cover 17 inside has set firmly intubate 16, and sealing block 15 is connected fixedly with seal cover 17 and intubate 16 respectively, and drain hole 18 has been seted up respectively to seal cover 17 and intubate 16 outer wall.
The inner wall sliding connection of feed liquor pipe 20 has sealing plug 22, and sealing plug 22 bottom extends to connecting pipe 19 port below, and sealing plug 22 circumference outer wall has set firmly sealed lid 21, and through-hole 23 has been seted up at sealing plug 22 top, and recess 24 has been seted up at sealing plug 22 top.
The ion chromatograph also comprises a suppressor body 25, wherein the suppressor body 25 is arranged inside the chromatograph 1, a connecting wire 26 is fixedly arranged on the outer wall of the suppressor body 25, two treatment boxes 27 are fixedly arranged at the top of the suppressor body 25 in a symmetrical structure, two connecting shafts 29 are rotationally connected to the inner wall of the suppressor body 25 in a symmetrical structure, and gears 30 are fixedly arranged on the circumferential outer wall of the connecting shafts 29.
The inner walls of the two treatment boxes 27 are provided with fixed discs 32, the tops of the fixed discs 32 are symmetrically provided with two inhibition columns 28, the circumferential outer wall of the fixed discs 32 is rotationally connected with a rotating sleeve 31, the rotating sleeve 31 is fixedly connected with the treatment boxes 27, the tops of connecting shafts 29 penetrate through the treatment boxes 27 and are fixedly connected with the fixed discs 32, the bottoms of the inhibitor bodies 25 are fixedly provided with motors 33, the output ends of the motors 33 are fixedly connected with the connecting shafts 29 along the inner parts of the inhibitor bodies 25, the two connecting shafts 29 are driven to rotate by the motors 33, and the fixed discs 32 are driven to rotate by the connecting shafts 29, so that the inhibition columns 28 can rotate inside the treatment boxes 27, and the reaction speed with a solution is accelerated.
Working principle: the pressing plates 10 are pressed simultaneously, so that the pressing plates 10 drive the rotating shafts 8 to rotate, at the moment, the end parts of the two pressing plates 10 are turned over to the inside of the mounting groove 7, the automatic water injection tank 6 is placed in the mounting frame 5 at the top of the base 4, the pressing plates 10 are loosened, under the torsion action of the torsion springs 9, at the moment, the pressing plates 10 drive the rotating shafts 8 to reversely rotate, the rubber columns 11 are obtained through the end parts of the pressing plates 10 to squeeze the surface of the automatic water injection tank 6, the automatic water injection tank 6 can be fixed, the threaded rods 14 are rotated, the threaded rods 14 move along the water injection pipes 13 to the inside, the sealing blocks 15 are pushed by the threaded rods 14 to slide downwards along the inner walls of the water injection pipes 13, at the moment, the sealing blocks 15 push the insertion pipes 16 and the sealing sleeves 17 to move downwards until the bottoms of the insertion pipes 16 and the sealing sleeves 17 are inserted into the automatic water injection tank 6, at the moment, the drainage holes 18 on the insertion pipes 16 and the sealing sleeves 17 move to the ports of the connecting pipes 19, the sealing cover 21 is pulled upwards to drive the sealing plug 22 to slide upwards along the inner wall of the liquid inlet pipe 20, so that the connecting pipe 19 is communicated with the liquid inlet pipe 20, cleaning liquid is injected into the inside of the insertion pipe 16 through the automatic water injection tank 6, the cleaning liquid is injected into the inside of the liquid inlet pipe 20 through the connecting pipe 19 and finally conveyed into a detection port in the chromatograph 1 through the liquid inlet pipe 20, so that the internal structure of the chromatograph 1 is cleaned, the threaded rod 14 is reversely rotated, the insertion pipe 16 and the sealing sleeve 17 are respectively pulled by the threaded rod 14 through the sealing block 15 to move upwards along the water injection pipe 13, the drainage holes 18 on the insertion pipe 16 and the sealing sleeve 17 are moved to the upper part of the end part of the connecting pipe 19, the port of the connecting pipe 19 is sealed through the sealing sleeve 17, at the moment, residual cleaning liquid in the inside of the connecting pipe 19 continuously flows into the inside the liquid inlet pipe 20 under the action of gravity, finally, the cleaning work is completed, the sealing plug 22 can be driven to slide downwards along the liquid inlet pipe 20 by downwards extruding the sealing cover 21, so that the lower port of the connecting pipe 19 is sealed, in the detection process, only the sealing cover 21 is pulled to drive the sealing plug 22 to slide upwards along the inner wall of the liquid inlet pipe 20, so that the connecting pipe 19 is communicated with the liquid inlet pipe 20, then the inside of the liquid inlet pipe 20 is injected and detected through the through hole 23, the solution is injected into the treatment box 27, the inhibition column 28 in the treatment box 27 reacts with the solution, the connecting shaft 29 is driven to rotate through the motor 33 at the moment, under the transmission connection of the gear 30, the two connecting shafts 29 can synchronously rotate at the moment, the fixing disc 32 is driven to rotate through the connecting shaft 29, and the inhibition column 28 can rotate in the treatment box 27.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. Ion chromatograph, comprising a chromatograph (1), characterized in that: the utility model discloses a chromatograph, including chromatograph (1) and connecting pipe, chromatograph (1) top has set firmly two mounting panel (2), chromatograph (1) top has set firmly connecting plate (3), connecting plate (3) both ends are connected fixedly with two mounting panel (2) respectively, chromatograph (1) top has set firmly base (4), base (4) top has set firmly mounting bracket (5), automatic water injection tank (6) have been placed to mounting bracket (5) inner wall, connecting plate (3) inner wall has set firmly water injection pipe (13), water injection pipe (13) top threaded connection has threaded rod (14), threaded rod (14) bottom passes water injection pipe (13) and extends to its inside, water injection pipe (13) inside sliding connection has sealing block (15), sealing block (15) top and threaded rod (14) rotate and are connected, water injection pipe (13) inner wall sliding connection has seal cover (17), seal cover (17) inside has set firmly intubate (16), sealing block (15) are connected fixedly with seal cover (17) and intubate (16) respectively, seal cover (17) outer wall and intubate (16) are equipped with water injection pipe (18) respectively, water injection pipe (13) outer wall (20) have set firmly water injection pipe (13) top (20), the liquid inlet pipe (20) is fixedly connected with the connecting pipe (19).
2. An ion chromatograph according to claim 1, wherein: the connecting pipe (19) is obliquely arranged, and one end of the connecting pipe (19) close to the water injection pipe (13) is higher than the other end.
3. An ion chromatograph according to claim 1, wherein: two mounting grooves (7) are formed in the outer wall of the mounting frame (5) in a symmetrical structure, a rotating shaft (8) is rotatably connected to the inner wall of the mounting groove (7), the top of the rotating shaft (8) penetrates through the mounting frame (5) and extends to the upper portion of the mounting frame, a torsion spring (9) is sleeved on the circumferential outer wall of the rotating shaft (8), a pressing plate (10) is fixedly arranged on the circumferential outer wall of the rotating shaft (8), and the pressing plate (10) is located inside the mounting groove (7).
4. An ion chromatograph according to claim 3, wherein: one end of the torsion spring (9) is fixedly connected with the rotating shaft (8), and the other end of the torsion spring (9) is fixedly connected with the mounting frame (5).
5. An ion chromatograph according to claim 3, wherein: rubber columns (11) are respectively and fixedly arranged at the inner ends of the two pressing plates (10), the rubber columns (11) are in friction contact with the outer wall of the automatic water injection tank (6), and a handle groove (12) is formed in the surface of each pressing plate (10).
6. An ion chromatograph according to claim 1, wherein: the inner wall sliding connection of feed liquor pipe (20) has sealing plug (22), sealing plug (22) bottom extends to connecting pipe (19) port below, sealing plug (22) circumference outer wall has set firmly sealed lid (21), through-hole (23) have been seted up at sealing plug (22) top, recess (24) have been seted up at sealing plug (22) top.
7. An ion chromatograph according to claim 1, wherein: still including inhibitor body (25), inside chromatograph (1) is installed to inhibitor body (25), connecting wire (26) have been set firmly to inhibitor body (25) outer wall, two processing boxes (27) have been set firmly to inhibitor body (25) top in symmetrical structure, inhibitor body (25) inner wall is symmetrical rotation and is connected with two connecting axle (29), connecting axle (29) circumference outer wall has set firmly gear (30).
8. An ion chromatograph according to claim 7, wherein: two the inner wall of handling case (27) all is equipped with fixed disk (32), fixed disk (32) top is symmetrical structure and has set firmly two suppression posts (28), fixed disk (32) circumference outer wall rotates and is connected with and rotates cover (31), it is fixed that it is connected with handling case (27) to rotate cover (31), handling case (27) and be connected fixedly with fixed disk (32) are passed at connecting axle (29) top, motor (33) have set firmly in the bottom of suppressor body (25), motor (33) output is with inside and be connected fixedly with connecting axle (29) to suppressor body (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211289885.2A CN115541800B (en) | 2022-10-20 | 2022-10-20 | Ion chromatograph and inhibitor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211289885.2A CN115541800B (en) | 2022-10-20 | 2022-10-20 | Ion chromatograph and inhibitor thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115541800A CN115541800A (en) | 2022-12-30 |
| CN115541800B true CN115541800B (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211289885.2A Active CN115541800B (en) | 2022-10-20 | 2022-10-20 | Ion chromatograph and inhibitor thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11982653B2 (en) * | 2019-04-01 | 2024-05-14 | Shimadzu Corporation | Ion chromatograph and ion component analysis method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4277433B2 (en) * | 2000-08-02 | 2009-06-10 | 東ソー株式会社 | Ion chromatograph system and suppressor means for exchanging ion exchange material in suppressor |
| CN101105482B (en) * | 2007-07-27 | 2010-07-21 | 福州大学 | Usage method for electrochromatography capillary column production device |
| JP6711188B2 (en) * | 2016-07-15 | 2020-06-17 | 東ソー株式会社 | Ion chromatograph switching suppressors |
| CN207557181U (en) * | 2017-11-21 | 2018-06-29 | 广东中汇认证检测有限公司 | A kind of cleaning solution transfusion system of ion chromatograph |
| CN210171455U (en) * | 2019-04-11 | 2020-03-24 | 苏州长光华医生物医学工程有限公司 | Independent reaction cup shaking device |
| CN210465355U (en) * | 2019-08-22 | 2020-05-05 | 安徽大禹仪器有限公司 | High-pressure ion chromatograph with self-cleaning function |
| CN112505233A (en) * | 2020-11-20 | 2021-03-16 | 浙江绣雨坊贸易有限公司 | High-pressure ion chromatograph with automatic cleaning function |
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