CN114487174A - Control device and control method for liquid chromatograph - Google Patents
Control device and control method for liquid chromatograph Download PDFInfo
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- CN114487174A CN114487174A CN202210041107.5A CN202210041107A CN114487174A CN 114487174 A CN114487174 A CN 114487174A CN 202210041107 A CN202210041107 A CN 202210041107A CN 114487174 A CN114487174 A CN 114487174A
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- electromagnetic valve
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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
- G01N30/02—Column chromatography
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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
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/24—Automatic injection systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00584—Control arrangements for automatic analysers
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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
- G01N30/02—Column chromatography
- G01N2030/022—Column chromatography characterised by the kind of separation mechanism
- G01N2030/027—Liquid chromatography
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Abstract
The invention discloses a control device and a control method for a liquid chromatograph, which comprise a bottom plate, wherein one side of the top of the bottom plate is provided with a plurality of liquid storage bottles, the top of the bottom plate is provided with a pressurizing device and a sample injector, the output end of the sample injector is connected with a separation column, the other end of the separation column is connected with a detector, the signal output end of the detector is connected with a controller, a second electromagnetic valve is arranged on a sample inlet pipe, and a first electromagnetic valve is arranged on a second connecting pipe. According to the control device and the control method for the liquid chromatograph, the situation that different detection objects are placed into the liquid chromatograph one by a worker for detection is avoided through the plurality of liquid storage bottles and the corresponding electromagnetic valves, so that the working efficiency is improved, the detection information can be recorded through the controller and the detector, the monitoring information and the information stored in advance are contrasted and analyzed, the liquid chromatograph can be controlled through the controller, and the liquid chromatograph can work conveniently.
Description
Technical Field
The invention relates to the technical field of liquid chromatographs, in particular to a control device and a control method for a liquid chromatograph.
Background
Liquid chromatography is a separation and analysis technique, and is characterized in that liquid is used as a mobile phase, a stationary phase can be in various forms, such as paper, a thin plate, a packed bed and the like, and in the development process of the chromatographic technique, in order to distinguish various methods, respective names are generated according to the forms of the stationary phase, such as paper chromatography, thin-layer chromatography and column liquid chromatography.
The existing liquid chromatograph has the following defects or problems during detection:
1. when the liquid chromatograph is used for detection, different to-be-detected bodies are required to be placed into the liquid chromatograph one by one for detection by a worker, and the working time is wasted;
2. when the liquid chromatograph detects an object, the detected result needs to be manually recorded, and the detected results are compared one by one, which wastes time and increases the workload of workers.
Disclosure of Invention
The present invention is directed to a control device and a control method for a liquid chromatograph, which solve the problems of the related art.
In order to achieve the purpose, the invention provides the following technical scheme: the control device for the liquid chromatograph comprises a bottom plate, wherein a plurality of liquid storage bottles are arranged on one side of the top of the bottom plate, a pressurizing device and a sample injector are arranged on the top of the bottom plate, an output end of the sample injector is connected with a separation column, the other end of the separation column is connected with a detector, a signal output end of the detector is connected with a controller, a second electromagnetic valve is arranged on a sample injection pipe, and a first electromagnetic valve is arranged on a second connecting pipe.
As a preferred technical scheme of the invention, the pressurizing device comprises a driving motor, a rotating shaft, a telescopic spring, a shell, a pressurizing box, a moving plate, a movable column and an eccentric wheel, wherein a base is welded on one side of the top surface of the bottom plate, the driving motor is installed on the top of the base through a bolt, and the bottom of the shell is welded with the top surface of the bottom plate.
As a preferred technical scheme of the invention, one end of the rotating shaft is connected with the output end of the driving motor through a coupler, the rotating shaft penetrates through and extends into the shell, the eccentric wheel is welded at one end of the rotating shaft in the shell, and the bottom surface of the pressurizing box is welded with the inner wall of the bottom of the shell.
As a preferable technical scheme of the invention, the moving plate is arranged inside the pressurizing box and is connected with the inside of the pressurizing box in a sliding way, the bottom surface of the movable column is welded with the top surface of the moving plate, and the top of the movable column penetrates through and extends to the top of the pressurizing box.
As a preferred technical scheme of the invention, the telescopic spring is wound around the outer ring of the movable column, one end of the telescopic spring is welded on the top surface of the movable plate, and the other end of the telescopic spring is welded on the inner wall of the top of the pressurizing box.
In a preferred embodiment of the present invention, the output ends of the liquid storage bottles are connected to second connection pipes, one ends of the second connection pipes, which are away from the liquid storage bottles, are connected to a collecting pipe, one side of the collecting pipe is connected to a first connection pipe, and one ends of the first connection pipes, which are away from the collecting pipe, penetrate and extend into the pressure tank.
As a preferable technical solution of the present invention, a sample injection tube is disposed on a side of the pressurizing device away from the first connecting tube, and the other end of the sample injection tube is connected to an input end of the sample injector.
As a preferable technical scheme of the invention, the output end of the detector is connected with a discharge pipe, and the first electromagnetic valve and the second electromagnetic valve are both one-way electromagnetic valves.
As a preferred technical solution of the present invention, S1, by turning on the detection device, the controller will control the pressurization device, and control the first electromagnetic valve and the second electromagnetic valve, when controlling the first electromagnetic valve, because there are four first electromagnetic valves, and respectively control the liquid storage bottle, and the concentrations of the liquids to be detected contained in the liquid storage bottle are different, the liquids to be detected in different liquid storage bottles can be extracted by controlling the first electromagnetic valve;
s2, extracting the liquid in the liquid storage bottle to be detected through a first electromagnetic valve controlled by a controller and pressurizing the liquid through a pressurizing device, wherein the controller starts a second electromagnetic valve, the extracted liquid to be detected is pressurized through the pressurizing device and is conveyed to a sample injector, and the extracted liquid to be detected is further pressurized through the pressurizing device and is conveyed to a separation column;
and S3, detecting the information by the detector under the action of the separation column, comparing the detected information, recording the corresponding information, comparing the detected information with the stored information, and storing the information respectively to facilitate the consulting of workers.
Compared with the prior art, the invention provides a control device and a control method for a liquid chromatograph, which have the following beneficial effects:
1. according to the control device and the control method for the liquid chromatograph, the liquid in different liquid storage bottles can be extracted through the pressurizing device through the plurality of liquid storage bottles and the corresponding electromagnetic valves, so that the condition that different detection objects are placed into the liquid chromatograph one by one for detection by workers is avoided, the working time of the liquid chromatograph can be reduced, and the working efficiency is improved;
2. according to the control device and the control method for the liquid chromatograph, the controller and the detector are arranged, a detected object in the separation column can be detected, the detected information is recorded, the monitored information and the information stored in the separation column in advance are contrasted and analyzed, the liquid chromatograph can be controlled through the controller, the work of the liquid chromatograph is facilitated, and the work efficiency of the liquid chromatograph is improved.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic view of the structure of the pressurizing device of the present invention;
FIG. 3 is a schematic view of the flow structure of the present invention;
FIG. 4 is a schematic structural diagram of a control method according to the present invention;
FIG. 5 is a schematic view of a first solenoid valve control configuration of the present invention;
reference numerals: 1. a base plate; 2. a liquid storage bottle; 3. a base; 4. a first solenoid valve; 5. a pressurizing device; 6. a header; 7. a sample inlet pipe; 8. a second solenoid valve; 9. a sample injector; 10. a discharge pipe; 11. a separation column; 12. a detector; 13. a controller; 14. a first connecting pipe; 15. a second connecting pipe; 501. a drive motor; 502. a rotating shaft; 503. a tension spring; 504. a housing; 505. a pressurizing box; 506. moving the plate; 507. a movable post; 508. an eccentric wheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1, the present invention includes a base plate 1, and is characterized in that: four liquid storage bottles 2 are arranged on one side of the top of the bottom plate 1, a pressurizing device 5 and a sample injector 9 are arranged on the top of the bottom plate 1, an output end of the sample injector 9 is connected with a separation column 11, the other end of the separation column 11 is connected with a detector 12, a signal output end of the detector 12 is connected with a controller 13, a second electromagnetic valve 8 is arranged on the sample injection pipe 7, first electromagnetic valves 4 are arranged on four second connecting pipes 15, the detector 12 can detect a detection object in the separation column 11, detection information is recorded, and contrastive analysis is carried out on the monitoring information and information stored in advance.
Example two:
referring to fig. 1 and 2, the pressurizing device 5 includes a driving motor 501, a rotating shaft 502, a telescopic spring 503, a housing 504, a pressurizing tank 505, a moving plate 506, a movable column 507 and an eccentric wheel 508, wherein the base 3 is welded on one side of the top surface of the bottom plate 1, the driving motor 501 is mounted on the top of the base 3 through bolts, the bottom of the housing 504 is welded with the top surface of the bottom plate 1, one end of the rotating shaft 502 is connected with the output end of the driving motor 501 through a coupling, the rotating shaft 502 penetrates and extends into the housing 504, the eccentric wheel 508 is welded on one end of the rotating shaft 502 located in the housing 504, the bottom surface of the pressurizing tank 505 is welded with the bottom inner wall of the housing 504, the moving plate 506 is arranged inside the pressurizing tank 505 and is slidably connected with the inside of the pressurizing tank 505, the bottom surface of the movable column 507 is welded with the top surface of the moving plate 506, the top of the movable column 507 penetrates and extends to the top of the pressurizing tank 505, the telescopic spring 503 is wound around the outer ring of the movable column 507, one end of the telescopic spring 503 is welded on the top surface of the movable plate 506, the other end of the telescopic spring 503 is welded on the top inner wall of the pressurizing box 505, and the pressurizing device 5 can extract the liquid in different liquid storage bottles 2 and make the liquid enter the sample injector 9 and the separation column 11 through pressurization.
Example three:
referring to fig. 1 and 2, the output ends of the four liquid storage bottles 2 are all connected with four second connecting pipes 15, one end of each second connecting pipe 15, which is far away from the liquid storage bottle 2, is connected with a collecting pipe 6, one side of the collecting pipe 6 is connected with a first connecting pipe 14, one end of each first connecting pipe 14, which is far away from the collecting pipe 6, penetrates and extends into a pressurizing tank 505, one side of the pressurizing device 5, which is far away from the first connecting pipe 14, is provided with a sample inlet pipe 7, the other end of the sample inlet pipe 7 is connected with the input end of a sample injector 9, the output end of the detector 12 is connected with a discharge pipe 10, the first electromagnetic valve 4 and the second electromagnetic valve 8 are both one-way electromagnetic valves, through the plurality of liquid storage bottles 2 and the corresponding first electromagnetic valves 4, the liquids in different liquid storage bottles 2 can be extracted through the pressurizing device 5, and the detection of different detection objects in a liquid chromatograph by a worker is avoided, the working time can be reduced, and the working efficiency is improved.
Example four:
referring to fig. 1, fig. 3, fig. 4 and fig. 5, the control method includes:
s1, when the detection device is turned on, the controller 13 will control the pressurizing device 5, the first solenoid valve 4 and the second solenoid valve 8, and when the first solenoid valve 4 is controlled, because there are four first solenoid valves 4, and the liquid storage bottles 2 are respectively controlled, and the concentrations of the liquids to be detected contained in the liquid storage bottles 2 are different, the liquids to be detected in different liquid storage bottles 2 can be extracted under the control of the first solenoid valves 4;
s2, the liquid in the liquid storage bottle 2 to be detected is extracted by the first solenoid valve 4 controlled by the controller 13 and pressurized by the pressurizing device 5, at this time, the controller 13 will activate the second solenoid valve 8, at this time, the extracted liquid to be detected is pressurized by the pressurizing device 5 and is delivered to the sample injector 9, and the extracted liquid to be detected is further pressurized by the pressurizing device 5 and is delivered to the separation column 11;
and S3, detecting the information by the detector 12 under the action of the separation column 11, comparing the detected information, recording the corresponding information, comparing the detected information with the stored information, and storing the information respectively to facilitate the consulting of workers.
The working principle and the using process of the invention are as follows: firstly, the controller 13 is started, at this time, the controller 13 starts to work, when the controller 13 starts to work, the first electromagnetic valve 4 can be started, because the first electromagnetic valve 4 has four groups, the controller 13 can start the corresponding first electromagnetic valve 4 to be detected in the first electromagnetic valve 4, at this time, the first electromagnetic valve 4 is started, at this time, the controller 13 can start the pressurizing device 5, the liquid in the corresponding liquid storage bottle 2 can be extracted through the pressurizing device 5, and the pressurizing device 5 pressurizes the liquid, at this time, the controller 13 can start the driving motor 501 to work, the driving motor 501 can drive the output end of the driving motor 501 to rotate, the output end of the driving motor 501 can rotate, the rotating shaft 502 can be driven to rotate, the eccentric wheel 508 can be driven to rotate, at this time, the eccentric wheel 508 can extrude the movable column 507, the movable column 507 is pressed to move downwards, the movable column 507 can drive the movable plate 506 to move downwards when moving downwards, when the movable plate 506 moves downwards, the movable plate 506 can move upwards under the action of the telescopic spring 503, so that when the eccentric wheel 508 rotates ceaselessly, the movable column 507 can drive the movable plate 506 to do vertical reciprocating motion ceaselessly, so that continuous pressurization in the pressurization box 505 is realized, at the moment, the controller 13 opens the second electromagnetic valve 8, so that the liquid extracted from the pressurization box 505 is conveyed to the sample injector 9 through the sample injection pipe 7 by the pressurization device 5, and the liquid extracted can be conveyed to the separation column 11 through continuous pressurization in the pressurization device 5, enters the detector 12 through the separation column 11 to be detected, and the detected information is compared with the stored information, and the detected information is analyzed and stored, so that the manual analysis of the detected information by workers is facilitated, the working time is saved, and the working efficiency is improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A control device and a control method for a liquid chromatograph, which comprises a base plate (1), and is characterized in that: the device is characterized in that a plurality of liquid storage bottles (2) are arranged on one side of the top of the bottom plate (1), a pressurizing device (5) and a sample injector (9) are arranged on the top of the bottom plate (1), an output end of the sample injector (9) is connected with a separation column (11), the other end of the separation column (11) is connected with a detector (12), a signal output end of the detector (12) is connected with a controller (13), a second electromagnetic valve (8) is arranged on the sample injection pipe (7), and a first electromagnetic valve (4) is arranged on the second connecting pipe (15).
2. The control device and the control method for a liquid chromatograph according to claim 1, characterized in that: the pressurizing device (5) comprises a driving motor (501), a rotating shaft (502), a telescopic spring (503), a shell (504), a pressurizing box (505), a moving plate (506), a movable column (507) and an eccentric wheel (508), wherein a base (3) is welded on one side of the top surface of the bottom plate (1), the driving motor (501) is installed at the top of the base (3) through bolts, and the bottom of the shell (504) is welded with the top surface of the bottom plate (1).
3. The control apparatus and the control method for a liquid chromatograph according to claim 2, characterized in that: the one end of pivot (502) is passed through the shaft coupling and is connected with driving motor (501)'s output, pivot (502) run through and extend to the inside of casing (504), eccentric wheel (508) welds the one end that is located casing (504) in pivot (502), the bottom surface of pressure tank (505) and the welding of the bottom inner wall of casing (504).
4. The control device and the control method for a liquid chromatograph according to claim 3, characterized in that: the moving plate (506) is arranged inside the pressurizing box (505) and is connected with the inside of the pressurizing box (505) in a sliding mode, the bottom surface of the movable column (507) is welded with the top surface of the moving plate (506), and the top of the movable column (507) penetrates through and extends to the top of the pressurizing box (505).
5. The control device and the control method for a liquid chromatograph according to claim 4, characterized in that: the telescopic spring (503) surrounds the outer ring of the movable column (507), one end of the telescopic spring (503) is welded on the top surface of the movable plate (506), and the other end of the telescopic spring (503) is welded on the inner wall of the top of the pressurizing box (505).
6. The control device and the control method for a liquid chromatograph according to claim 1, characterized in that: the output end of the liquid storage bottle (2) is connected with a second connecting pipe (15), one end, far away from the liquid storage bottle (2), of the second connecting pipe (15) is connected with a collecting pipe (6), one side of the collecting pipe (6) is connected with a first connecting pipe (14), and one end, far away from the collecting pipe (6), of the first connecting pipe (14) penetrates through and extends into the pressurizing box (505).
7. The control device and the control method for a liquid chromatograph according to claim 1, characterized in that: one side of the pressurizing device (5) far away from the first connecting pipe (14) is provided with a sample inlet pipe (7), and the other end of the sample inlet pipe (7) is connected with the input end of the sample injector (9).
8. The control device and the control method for a liquid chromatograph according to claim 1, characterized in that: the output end of the detector (12) is connected with a discharge pipe (10), and the first electromagnetic valve (4) and the second electromagnetic valve (8) are both one-way electromagnetic valves.
9. The control apparatus for a liquid chromatograph according to any one of claims 1 to 8, further comprising a control method of:
s1, by starting the detection device, the controller (13) controls the pressurizing device (5) and the first electromagnetic valve (4) and the second electromagnetic valve (8), when the first electromagnetic valve (4) is controlled, the liquid storage bottles (2) are respectively controlled because the number of the first electromagnetic valves (4) is four, and the concentrations of the liquid to be detected contained in the liquid storage bottles (2) are different, and the liquid to be detected in different liquid storage bottles (2) can be extracted by the control of the first electromagnetic valve (4);
s2, extracting the liquid in the liquid storage bottle (2) to be detected through a first electromagnetic valve (4) controlled by a controller (13) and pressurizing the liquid through a pressurizing device (5), wherein the controller (13) starts a second electromagnetic valve (8), the extracted liquid to be detected is pressurized through the pressurizing device (5) and is conveyed to a sample injector (9), and the extracted liquid to be detected is further pressurized through the pressurizing device (5) and is conveyed to a separation column (11);
and S3, detecting the information by the detector (12) under the action of the separation column (11), comparing the detected information, recording the corresponding information, comparing the detected information with the stored information, and storing the information respectively to facilitate the consulting of workers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210041107.5A CN114487174A (en) | 2022-01-14 | 2022-01-14 | Control device and control method for liquid chromatograph |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210041107.5A CN114487174A (en) | 2022-01-14 | 2022-01-14 | Control device and control method for liquid chromatograph |
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| CN114487174A true CN114487174A (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210041107.5A Pending CN114487174A (en) | 2022-01-14 | 2022-01-14 | Control device and control method for liquid chromatograph |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014228499A (en) * | 2013-05-27 | 2014-12-08 | 株式会社日立ハイテクノロジーズ | Liquid chromatograph |
| CN207125951U (en) * | 2016-10-21 | 2018-03-23 | 王静海 | A kind of medical Respiratory Medicine chemical spraying device |
| CN207163995U (en) * | 2017-06-29 | 2018-03-30 | 苏州环球色谱有限责任公司 | A kind of adaptive switched liquid chromatograph of mobile phase |
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2022
- 2022-01-14 CN CN202210041107.5A patent/CN114487174A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014228499A (en) * | 2013-05-27 | 2014-12-08 | 株式会社日立ハイテクノロジーズ | Liquid chromatograph |
| CN207125951U (en) * | 2016-10-21 | 2018-03-23 | 王静海 | A kind of medical Respiratory Medicine chemical spraying device |
| CN207163995U (en) * | 2017-06-29 | 2018-03-30 | 苏州环球色谱有限责任公司 | A kind of adaptive switched liquid chromatograph of mobile phase |
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