Device for automatically identifying mobile phase preparation liquid and regulating pH value

Abstract

The utility model discloses an automatic identification mobile phase liquid preparation and PH modulation device, which comprises a cabinet, a plurality of kits, a liquid preparation assembly, a code scanner, a control system, a turntable assembly and a PH walking assembly, the turntable assembly is arranged at the lower end part of the cabinet, a plurality of bases for placing mobile phase bottles or beakers are distributed on a turntable of the turntable assembly along the circumference, and the pH walking assembly is arranged on the turntable assembly. Each base is provided with a label positioning block used for positioning a bar code, the PH walking assembly is located over a rotating disc of the rotating disc assembly, the PH walking assembly is provided with a PH detection assembly and a stirring assembly, the PH walking assembly is used for driving the PH detection assembly and the stirring assembly to move up and down and left and right, and a liquid outlet of the liquid preparation assembly is formed over a liquid preparation station of the rotating disc. The code scanner is arranged on one side of a turntable of the turntable assembly and is over against the label positioning block; the turntable assembly, the PH walking assembly, the PH detection assembly and the stirring assembly are electrically connected with the control system respectively. The system is simple in structure and high in automatic identification intelligence degree, and reduces the cost.

Description

Technical Field

[0001] The utility model belongs to the liquid preparation technology, and in particular relates to a liquid preparation device for automatically identifying a mobile phase and monitoring a pH value. Background Art

[0002] In the process of industrial preparation chromatography, the mobile phase preparation method is usually adopted. During the preparation process, strong acids and strong bases are often present, and the pH value is manually adjusted and filtered in an open environment, which not only puts the experimenters in a highly toxic environment for a long time, but also has a great impact on the health of the operators. At the same time, the pH control of a mobile phase takes a lot of precious time of the experimenters, and manual operation has human errors in the precise control of the pH value solution, and it is impossible to achieve a precise volume setting effect for the prepared solution, and it is difficult to ensure the stability and reproducibility of the mobile phase.

[0003] At present, an automatic liquid preparation platform has been invented, but the existing automatic liquid preparation platform cannot automatically switch according to the preparation requirements. The equipment has a single function and can only be configured for mobile phase preparation with or without pH modulation. The use of different equipment increases the investment cost and occupied area. In addition, it still requires manual operation of scanning with a handheld barcode scanner, and the pH modulator needs to be disassembled and cleaned after use, etc., which fails to achieve fully automated operation.

[0004] Therefore, there is an urgent need to provide a mobile phase configuration device with high automation, good stability and multifunctionality. Summary of the invention

[0005] The utility model aims to provide a device for automatically identifying mobile phase matching and pH value monitoring in view of the deficiencies in the prior art. The device has a simple structure, a high degree of automation, can realize multi-function automatic switching, reduces the footprint of the device, and reduces costs.

[0006] The technical solution adopted by the purpose of the utility model is:

[0007] A device for automatically identifying mobile phase preparation and pH modulation, comprising a plurality of reagent kits, a preparation assembly, a barcode scanner and a control system, wherein the preparation assembly is connected to each of the reagent kits through a delivery pipeline, and the preparation assembly and the barcode scanner are electrically connected to the control system respectively, and further comprising a cabinet, wherein the plurality of reagent kits, the preparation assembly, the barcode scanner and the control system are all arranged in the cabinet, wherein a turntable assembly and a pH travel assembly are also arranged in the cabinet, wherein the turntable assembly is arranged on a workbench of the cabinet, and a plurality of bases for placing mobile phase bottles or beakers are distributed along the circumference of the turntable of the turntable assembly, and each of the A label positioning block for positioning the barcode is provided on the base; the PH walking assembly is located directly above the turntable of the turntable assembly, and the PH walking assembly is provided with a PH detection assembly and a stirring assembly, and the PH walking assembly is used to drive the PH detection assembly and the stirring assembly to move up, down, left and right, and the liquid outlet of the liquid preparation assembly is arranged directly above the liquid preparation station of the turntable, and the barcode scanner is arranged on one side of the turntable of the turntable assembly, facing the label positioning block, and the turntable assembly, the PH walking assembly, the PH detection assembly and the stirring assembly are electrically connected to the control system respectively.

[0008] Furthermore, it also includes a cleaning tank for cleaning the pH probe and the stirring paddle, the cleaning tank is arranged in the center of the turntable of the turntable assembly, the cleaning tank is provided with a liquid inlet and a liquid outlet, the liquid inlet is connected to the cleaning peristaltic pump, the liquid inlet is provided with a liquid inlet valve, and the liquid outlet is provided with a waste liquid valve.

[0009] Furthermore, the base is a groove structure, a positioning groove is provided on the base, the label positioning block is a clamp for being set on a mobile phase bottle or a beaker, a protrusion is provided at the lower end of the clamp for movably cooperating with the positioning groove of the base, and a barcode positioning hole is provided on the clamp.

[0010] Furthermore, the clamp is an arc block, and springs are connected to both ends of the arc block to form a clamp structure.

[0011] Furthermore, the control system includes an operation panel, an emergency stop button, a pause button, a start button, a confirmation button and a controller, the operation panel, the start button, the emergency stop button, the pause button and the confirmation button are electrically connected to the controller respectively, the emergency stop button is set on the cabinet, and the start button, the pause button and the confirmation button are set next to the operation panel.

[0012] Furthermore, the liquid preparation assembly includes a peristaltic pump and a plunger pump, the peristaltic pump and the plunger pump are respectively connected to each test kit through a delivery pipe, the peristaltic pump is used to deliver a large flow of reagents, and the plunger pump is used to deliver a small flow of reagents. The peristaltic pump and the plunger pump are respectively electrically connected to the control system, and the control system is used to control the actions of the peristaltic pump and the plunger pump according to the barcode information obtained by the scanner.

[0013] Furthermore, it also includes a printer, which is a thermal printer. The printer is arranged in the cabinet, and the printer is electrically connected to the control system for printing the information input on the operation panel.

[0014] Furthermore, an infusion alarm and an alarm light are provided. The alarm light adopts a three-color alarm light. A bubble sensor is provided on each of the delivery pipelines. The bubble sensor, the infusion alarm and the alarm light are electrically connected to the control system respectively. The bubble sensor is used to detect whether the delivery pipeline is short of liquid, has bubbles, or is detached or blocked. When the bubble sensor detects that the infusion is abnormal, an alarm is issued through the infusion alarm and the three-color alarm light.

[0015] Furthermore, it also includes an exhaust assembly, which is arranged on the upper end surface of the cabinet and is electrically connected to the control system to extract the odor emitted by the liquid during liquid preparation.

[0016] Furthermore, the PH walking assembly includes a lateral moving mechanism and an up-and-down lifting mechanism. A crossbeam is provided on the cabinet, and the lateral moving mechanism is arranged on the crossbeam of the cabinet. An up-and-down lifting mechanism is arranged on the mounting platform of the lateral moving mechanism. The PH detection assembly and the stirring assembly are installed on the mounting plate of the up-and-down lifting mechanism. The up-and-down lifting mechanism and the lateral moving mechanism are electrically connected to the control system respectively.

[0017] The above technical solution has the following beneficial effects:

[0018] The utility model has a simple structure. It uses a turntable assembly to place multiple mobile phase bottles or beakers, and uses a label positioning block to paste a barcode, so that the barcode scanner can automatically identify the barcode on the label positioning block and send the information to the control system. The control system controls the liquid preparation assembly to prepare the liquid. After the current mobile phase bottle or beaker is configured, the rotating turntable automatically rotates to send the mobile phase bottle or beaker to be prepared to the liquid preparation station for preparation. The loading and preparation operations of the utility model are all automated operations, without manual operation, and have a high degree of automation. It can also realize the free switching of the mobile phase matching and pH value detection functions, has low cost of use, and high practical value. It is a fully automatic liquid supply and preparation device for hemodialysis with practicality and wide application.

[0019] The base is provided with a positioning groove, the label positioning block adopts a clamp, the clamp is provided with a protrusion that movably cooperates with the positioning groove of the base, the clamp is provided with a barcode positioning hole, and the label positioning block can be freely taken and placed on the base to avoid blocking and affecting the taking and placing of the mobile phase bottle or beaker.

[0020] The clamp adopts an arc block, and springs are connected at both ends of the arc block to form a clamp structure, which is not only convenient for sleeve installation on a mobile phase bottle or beaker, but also can be used for mobile phase bottles or beakers of different diameters, and has a wider range of uses.

[0021] A cleaning tank for cleaning the PH probe and the stirring paddle is added, and the cleaning tank is set in the center of the turntable of the turntable assembly. After the PH configuration is completed, the PH probe and the stirring paddle are driven to the cleaning tank by the PH walking assembly, and clean water is automatically pumped into the cleaning tank by opening the liquid inlet valve of the cleaning tank for cleaning. After cleaning, the waste liquid valve of the cleaning tank is opened to drain the liquid, thereby realizing automatic cleaning of the PH probe and the stirring paddle.

[0022] It also includes an infusion alarm and an alarm light. The alarm light adopts a three-color alarm light. A bubble sensor is also provided on the delivery pipeline. When the bubble sensor detects that the delivery pipeline is short of liquid, has bubbles, the pipeline is detached, or is blocked, the infusion alarm and the three-color alarm light will alarm without manual fixed guard.

[0023] An exhaust assembly is added to exhaust the odors brought by reagents during work, ensuring a good working and experimental environment.

[0024] The printer is set on the cabinet, and information is directly inputted through the operation panel of the control system, and then it is printed out on the cabinet. It integrates printing and code scanning to achieve fully automatic integrated operation.

[0025] The liquid preparation assembly includes a peristaltic pump and a plunger pump, which are respectively connected to each reagent box through a delivery pipeline. The peristaltic pump is used to deliver a large flow reagent, and the plunger pump is used to deliver a small flow reagent, which not only makes the flow control more precise but also improves the work efficiency.

[0026] Further description is given below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of specific embodiment 1;

[0028] Figure 2 for Figure 1 A front view of

[0029] Figure 3 for Figure 1 Rear view of

[0030] Figure 4 It is a structural schematic diagram of the PH walking assembly and the cabinet in specific embodiment 1;

[0031] Figure 5 It is a partial structural view of the lateral moving mechanism and the up and down lifting mechanism in specific embodiment 1.

[0032] In the accompanying drawings, 1 is a cabinet, 1-1 is a beam, 2 is a reagent box, 3 is a liquid preparation assembly, 3-1 is a peristaltic pump, 3-2 is a plunger pump, 4 is a barcode scanner, 5 is a printer, 6 is a turntable assembly, 6-1 is a base, 6-2 is a positioning slot, 6-3 is a label positioning block, 6-4 is a cleaning slot, 6-5 is a barcode positioning hole, 6-6 is a turntable, 7 is a PH walking assembly, 7-1 is a lateral moving mechanism, 7-2 is an up and down lifting mechanism, 8 is a controller, 8-1 is an operation panel, 8-2 is an emergency stop button, 9 is a PH detection assembly, 10 is a stirring assembly, 11 is an infusion alarm, 12 is an alarm light, 13 is a mobile phase bottle, and 14 is an exhaust assembly. DETAILED DESCRIPTION Specific embodiment 1:

[0034] See also Figures 1 to 5As shown, an automatic identification mobile phase preparation and pH modulation device includes a cabinet 1, a plurality of reagent kits 2, a preparation assembly 3, a barcode scanner 4, a printer 5, a turntable assembly 6, a pH travel assembly 7 and a control system. The plurality of reagent kits 2, the preparation assembly 3, the barcode scanner 4, the turntable assembly 6, the printer 5, the pH travel assembly 7 and the control system are all arranged in the cabinet 1. The cabinet 1 is a rectangular frame, and the rectangular frame is provided with at least a bottom plate and a back plate. The preparation assembly 3 is connected to each of the reagent kits 2 through a conveying pipeline. The turntable assembly 6 is arranged at the lower end of the cabinet 1. The turntable assembly 6 includes a turntable 6-6 and a motor for driving the turntable to rotate. The turntable 6-6 is arranged on the bottom plate of the cabinet 1. The turntable of the turntable assembly 6 has a circular upper edge. There are six bases 6-1 distributed around the body for placing mobile phase bottles 13 or beakers. When used for mobile phase preparation, the mobile phase bottle 13 is used, and when used for pH modulation, the beaker is used. The base 6-1 is in a groove structure. Each base 6-1 is provided with a label positioning block 6-3 for positioning the barcode. The base 6-1 is provided with a positioning groove 6-2. The label positioning block 6-3 is a clamp for being set on the mobile phase bottle or beaker. The lower end of the clamp is provided with a protrusion that movably cooperates with the positioning groove of the base 6-1. The clamp is provided with a barcode positioning hole 6-5. In this specific embodiment: the clamp adopts an arc block, the arc block is a superior arc structure, and two springs are connected to both ends of the arc block to form a clamp structure. A cleaning tank 6-4 for cleaning the pH probe and the stirring paddle is also provided in the center of the turntable of the turntable assembly 6. A liquid inlet is provided on the side wall of the cleaning tank 6-4, and a liquid outlet is provided at the bottom of the cleaning tank 6-4. The liquid inlet is connected to a cleaning peristaltic pump through a pipeline. The cleaning peristaltic pump is provided at the lower end surface of the bottom of the cabinet 1, and the cleaning peristaltic pump is connected to the cleaning liquid. The liquid inlet is provided with a liquid inlet valve, the liquid outlet is provided with a waste liquid valve, and the liquid outlet is connected to a waste liquid collection container through a waste liquid pipe.

[0035] The PH walking assembly 7 is located directly above the turntable of the turntable assembly 6. The PH walking assembly 7 is provided with a PH detection assembly 9 and a stirring assembly 10. The PH detection assembly 9 includes a PH probe and a conversion circuit. The stirring assembly 10 includes a stirring paddle and a motor for controlling the rotation of the stirring paddle. The PH walking assembly 7 includes a lateral moving mechanism 7-1 and an up-and-down lifting mechanism 7-2. The cabinet 1 is provided with a crossbeam 1-1. The crossbeam moving mechanism 7-1 is arranged on the crossbeam 1-1 of the cabinet 1. The up-and-down lifting mechanism 7-2 is arranged on the mounting platform of the cross-moving mechanism 7-1. The up-and-down lifting mechanism 7-2 is provided with a mounting plate. The PH detection assembly 9 and the stirring assembly 10 are installed on the mounting plate of the up-and-down lifting mechanism. The up-and-down lifting mechanism 7-1 and the cross-moving mechanism 7-2 are electrically connected to the control system respectively.

[0036] The transverse moving mechanism 7-1 includes a motor for transverse drive, a mounting base, a slide rail and a belt. The motor is fixedly mounted on the crossbeam 1-1 of the cabinet 1 through a motor base. The belt is sleeved on the output shaft of the motor. The slide rail is arranged on the crossbeam 1-1 of the cabinet 1 through a mounting base. A sliding slider is provided on the slide rail. A mounting platform is fixed to one side of the slider. A transverse moving block for sleeved on the belt is provided on the other side of the slider. An up and down lifting mechanism is arranged on the mounting platform. The up and down lifting mechanism 7-2 adopts an existing screw lifting mechanism.

[0037] The motor of the turntable assembly 6, the motor of the PH walking assembly 7, the conversion circuit of the PH detection assembly 9 and the motor of the stirring assembly 10 are electrically connected to the control system respectively, and the PH walking assembly 7 is used to drive the PH detection assembly 9 and the stirring assembly 10 to move up, down, left and right.

[0038] The liquid outlet of the liquid dispensing assembly 3 is arranged just above the liquid dispensing station of the turntable, and the barcode scanner 4 is arranged on one side of the turntable of the turntable assembly 6, facing the label positioning block, so as to facilitate rapid positioning and automatic scanning. The liquid dispensing assembly 3 and the barcode scanner 4 are electrically connected to the control system respectively, and the barcode scanner 4 is used to scan the barcode and upload it to the control system. The control system includes an operation panel 8-1, an emergency stop button, a pause button, a start button, a confirmation button and a controller 8. The operation panel, the start button, the emergency stop button 8-2, the pause button and the confirmation button are electrically connected to the controller 8 respectively. The operation panel 8-1, the start button, the pause button and the confirmation button are arranged just above the cabinet and beside the operation panel, the emergency stop button 8-2 is arranged on the bottom plate at the lower end of the cabinet, the controller 8 is arranged on the back plate of the cabinet 1, the emergency stop button is arranged on the cabinet 1, and the start button, the pause button and the confirmation button are arranged beside the operation panel. Each button is convenient for starting the corresponding program of each button according to the actual operation situation. The printer 5 is a thermal printer 5, which is arranged next to the operation panel of the control system, just above the pause button and the confirmation button. The printer 5 is electrically connected to the control system to print out the information input on the operation panel and output a barcode.

[0039] The liquid preparation assembly 3 includes a peristaltic pump 3-1 and a plunger pump 3-2, and the peristaltic pump 3-1 and the plunger pump 3-2 are respectively connected to each reagent kit 2 through a delivery pipeline. The peristaltic pump 3-1 is used to transport a large flow of reagents, and the plunger pump 3-2 is used to transport a small flow of reagents. The driving units of the peristaltic pump 3-1 and the plunger pump 3-2 are respectively electrically connected to the control system, and the control system is used to control the pumping actions of the peristaltic pump 3-1 and the plunger 3-2, and rotate the peristaltic pump 3-1 and the plunger pump 3-2 according to the liquid preparation quantity requirements to transport the corresponding reagents.

[0040] Possibly, an infusion alarm 11 and an alarm light 12 are also provided. The alarm light 12 is a three-color alarm light. Each delivery pipeline is provided with a bubble sensor. The bubble sensor, the infusion alarm 11 and the alarm light 12 are electrically connected to the control system respectively. The bubble sensor is used to detect whether the delivery pipeline is short of liquid, has bubbles, or is detached or blocked. When the bubble sensor 13 detects abnormal infusion, the infusion alarm 11 and the three-color alarm light are used to alarm, without manual supervision, thereby reducing the manual workload.

[0041] Possibly, an exhaust assembly 14 is also included, and the exhaust assembly 14 uses an exhaust fan. The exhaust assembly 14 is arranged on the upper end surface of the cabinet 1. The exhaust fan of the exhaust assembly 14 is electrically connected to the control system and is used to extract the odor emitted by the liquid during liquid preparation. An exhaust duct is provided at the upper end of the exhaust assembly, which extends to a waste treatment duct through the exhaust duct.

[0042] See also Figure 2 As shown, the working principle of the utility model is:

[0043] The utility model enters the liquid preparation stage,

[0044] Step 1: There are two modes: with PH modulation and without PH modulation;

[0045] Step 2: Enter the recipe and preparation quantity information on the operation panel 8-1, the quantity is 1-5, and press the panel confirmation key to start the device;

[0046] Step 3: The printer starts printing the label barcode according to the information entered in step 2;

[0047] Step 4: Stick the label barcode to the barcode positioning hole 6-5 of the bottle clamp and put it into the turntable.

[0048] Step 5: Press the Pause button, go to the next station and place the second mobile phase bottle 13. After placing all the bottles in sequence, press the Confirm button again to start the liquid preparation program.

[0049] Step 6: The mobile phase bottle 13 automatically moves to the liquid preparation station, and the barcode scanner 4 scans the barcode. The barcode on the label positioning block is automatically identified and transmitted to the control system by the barcode scanner, so that the control system automatically controls the liquid preparation assembly 3 to prepare the liquid according to the information contained in the acquired barcode; if the code is not scanned, the machine will stop and alarm, and the emergency stop button will be activated to manually adjust the bottle. After the code is scanned, the alarm is lifted and the liquid preparation continues.

[0050] Step 7: Add liquids according to the recipe in the order of adding small flow liquid first and then adding large flow liquid.

[0051] Step 8: During the liquid adding process, if the reagent sensor finds that a certain delivery pipeline is short of liquid, the equipment will stop operating, record the added volume, and the three-color alarm light will turn red. The display will prompt the delivery pipeline short of liquid alarm. Manually replace the liquid, press the confirmation button on the panel to start again, the alarm will be lifted, and the liquid replenishment will continue according to the recorded information.

[0052] Step 9: If there is no PH modulation mode, skip this step and go to the next step, i.e., step 10; if there is a PH modulation mode, move the walking arm to move the PH probe of the PH detection assembly 9 and the stirring paddle of the stirring assembly 10 into the liquid, rotate the stirring paddle at a fixed speed according to the liquid preparation information, and pre-add acid and alkali debugging liquid to adjust the PH value to the set PH value;

[0053] Step 10: After the liquid is added, the turntable moves to the next station, and the rotating turntable automatically sends the bottle or beaker to be prepared to the preparation station for preparation;

[0054] Step 11: Repeat steps 6 to 10 until the input quantity is completed.

[0055] Step 12: After preparation, the turntable returns to zero position;

[0056] When cleaning is performed, there are two types of cleaning: one is pH probe cleaning, and the other is delivery pipeline cleaning.

[0057] PH probe cleaning: Start mode, the stirring paddle and PH probe are inserted into the cleaning tank in the middle of the turntable, the waste valve is closed, the inlet valve is opened, the cleaning peristaltic pump starts to inject cleaning liquid, the stirring paddle rotates, stops after a certain period of time, the inlet valve is closed, the waste valve is opened, and then this step is repeated for cleaning once.

[0058] Cleaning of conveying pipelines: put the corresponding liquid inlet of the conveying pipeline to be cleaned into the cleaning liquid, put the waste liquid bottle on the turntable, start the cleaning program, turn the turntable to the waste liquid bottle to the liquid preparation station, and start to continuously add liquid to the cleaned conveying pipeline. After completion, take out the liquid inlet of the conveying pipeline, empty the cleaning liquid in the conveying pipeline, put it into the corresponding reagent, and then clean the next conveying pipeline. Repeat this operation until the required cleaning of the conveying pipeline is completed.

Claims

1. An automatic identification mobile phase preparation and pH modulation device, comprising a plurality of reagent kits, a preparation assembly, a code scanner and a control system, wherein the preparation assembly is connected to each of the reagent kits through a delivery pipeline, and the preparation assembly and the code scanner are electrically connected to the control system respectively, characterized in that: It also includes a cabinet, which is also provided with a turntable assembly and a PH walking assembly, the turntable assembly is arranged at the lower end of the cabinet, and a plurality of bases for placing mobile phase bottles or beakers are distributed along the circumference of the turntable of the turntable assembly, and each of the bases is provided with a label positioning block for positioning a barcode, the PH walking assembly is located directly above the turntable of the turntable assembly, and the PH walking assembly is provided with a PH detection assembly and a stirring assembly, and the PH walking assembly is used to drive the PH detection assembly and the stirring assembly to move up, down, left and right, and the liquid outlet of the liquid preparation assembly is arranged directly above the liquid preparation station of the turntable, and the barcode scanner is arranged on one side of the turntable of the turntable assembly, facing the label positioning block; the turntable assembly, the PH walking assembly, the PH detection assembly and the stirring assembly are electrically connected to the control system respectively.

2. The device for automatically identifying mobile phase preparation and pH modulation according to claim 1, characterized in that: It also includes a cleaning tank for cleaning the pH probe and the stirring paddle, wherein the cleaning tank is arranged in the center of the turntable of the turntable assembly, and the cleaning tank is provided with a liquid inlet and a liquid outlet, wherein the liquid inlet is connected to a cleaning peristaltic pump, the liquid inlet is provided with a liquid inlet valve, and the liquid outlet is provided with a waste liquid valve.

3. The device for automatically identifying mobile phase preparation and pH modulation according to claim 1, characterized in that: The base is in a groove structure, a positioning groove is provided on the base, the label positioning block is a clamp for being set on a mobile phase bottle or a beaker, a protrusion movably matched with the positioning groove of the base is provided at the lower end of the clamp, and a barcode positioning hole is provided on the clamp.

4. The device for automatically identifying mobile phase preparation and pH modulation according to claim 3, characterized in that: The clamp adopts an arc block, and springs are connected at both ends of the arc block to form a clamp structure.

5. The device for automatically identifying mobile phase preparation and pH modulation according to claim 1, characterized in that: The control system comprises an operation panel, an emergency stop button, a pause button, a start button, a confirmation button and a controller, and the operation panel, the start button, the emergency stop button, the pause button and the confirmation button are electrically connected to the controller respectively.

6. The device for automatically identifying mobile phase preparation and pH modulation according to claim 1 or 5, characterized in that: The liquid preparation assembly comprises a peristaltic pump and a plunger pump, the peristaltic pump and the plunger pump are respectively connected to each reagent box through a delivery pipeline, and the peristaltic pump and the plunger pump are respectively electrically connected to the control system.

7. The device for automatically identifying mobile phase preparation and pH modulation according to claim 1 or 5, characterized in that: It also includes a printer, which is arranged in the cabinet and is electrically connected to the control system.

8. The device for automatically identifying mobile phase preparation and pH modulation according to claim 1 or 5, characterized in that: An infusion alarm and an alarm light are also provided, and each of the delivery pipelines is provided with a bubble sensor, and the bubble sensor, the infusion alarm and the alarm light are electrically connected to the control system respectively.

9. The automatic identification mobile phase preparation and pH modulation device according to claim 1 or 5, characterized in that: It also includes an exhaust assembly, which is arranged on the upper end surface of the cabinet and is electrically connected to the control system.

10. The device for automatically identifying mobile phase preparation and pH modulation according to claim 1 or 5, characterized in that: The PH walking assembly includes a lateral moving mechanism and an up-and-down lifting mechanism. A crossbeam is provided on the cabinet, and the lateral moving mechanism is arranged on the crossbeam of the cabinet. The up-and-down lifting mechanism is arranged on the mounting platform of the lateral moving mechanism. The PH detection assembly and the stirring assembly are installed on the mounting plate of the up-and-down lifting mechanism. The up-and-down lifting mechanism and the lateral moving mechanism are electrically connected to the control system respectively.

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