Automatic sample injection system suitable for DART-MS and use method of automatic sample injection system

Abstract

The invention discloses an automatic sample introduction system suitable for DART-MS. The automatic sample introduction system suitable for DART-MS. The automatic sample introduction system suitable for DART-MS. The automatic sample introduction system suitable for DART-MS. The automatic sample introduction system suitable for DART-MS. The automatic sample introduction system suitable for DART-MS. The automatic sample introduction system suitable for DART-MS. The automatic sample introduction system suitable for DART-MS. The automatic sample introduction system comprises a sample introduction robot with a moving function, the workbench is connected with the base through a height adjusting assembly, a distance adjusting assembly is arranged on the workbench, a sample injection frame is arranged at the top end of the supporting frame and comprises a sample injection transverse frame located in the middle and sample injection side frames located on the two sides, a horizontal moving assembly is arranged on the sample injection side frames, and a visual detection positioning assembly is arranged on the sample injection transverse frame. A sample injection assembly is arranged at the end, far away from the sample injection transverse frame, of the sample injection side frame. The problems that an existing DART-MS system adopts open-type manual sample injection, the sample injection speed is low, the flux is low, the treatment efficiency is low, and the accuracy of an analysis result is affected can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of real-time direct analysis mass spectrometry injection technology, and in particular to an automatic injection system suitable for DART-MS and a use method thereof. Background Art

[0002] DART-MS (Direct Analysis in Real-Time-Mass Spectrometry) is a rapid, sample-preparation-free mass spectrometry technique. DART-MS has a wide range of applications in environmental science, food safety, drug analysis, forensic analysis, and other fields.

[0003] For the DART (Direct Analysis in Real Time) ion source coupled to an orbitrap high-resolution mass spectrometer system (LTQ OrbitrapElite), the injection mode is still open manual injection. The slow injection speed and low throughput lead to low processing efficiency and also affect the accuracy of the analysis results. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic sampling system suitable for DART-MS and a method for using the same, so as to solve the problem that the existing DART-MS system uses open manual sampling, has slow injection speed and low throughput, resulting in low processing efficiency and affecting the accuracy of analysis results.

[0005] To achieve the above-mentioned objectives, the present invention provides an automatic sampling system suitable for DART-MS, including a sampling robot with a mobile function, the sampling robot including a support frame, a workbench provided at the bottom end of the support frame, the workbench being connected to the base through a height adjustment component, a spacing adjustment component provided on the workbench, a sampling rack provided on the top end of the support frame, the sampling rack including a sampling cross frame located in the middle and sampling side frames located on both sides, a horizontal moving component provided on the sampling side frame, a visual detection and positioning component provided on the sampling cross frame, and a sampling assembly provided on the end of the sampling side frame away from the sampling cross frame.

[0006] Preferably, the sampling assembly includes two symmetrically arranged servo motors, the output shaft of the servo motor is connected to a rotating roller for unwinding and rewinding, and a sample conveyor belt is wound on the rotating roller; a flip seat is provided at the end of the sampling side frame, the flip seat is rotatably connected to the sampling side frame, and the servo motor is arranged at the top of the flip seat.

[0007] Preferably, the sample conveyor belt adopts a stainless steel mesh.

[0008] Preferably, the workbench includes workbench 1 and workbench 2, and the bottom ends of workbench 1 and workbench 2 are both provided with moving wheels.

[0009] Preferably, the height adjustment component includes a hydraulic cylinder 1, the base includes a base 1 and a base 2, and the top ends of the base 1 and the base 2 are connected to the bottom ends of the workbench 1 and the workbench 2 respectively through the hydraulic cylinder 1.

[0010] Preferably, the spacing adjustment assembly includes a hydraulic cylinder 2 and a spacing adjustment structure provided on the sample feeding horizontal frame, the hydraulic cylinder 2 is provided on the workbench 1, the hydraulic rod of the hydraulic cylinder 2 is connected to the spacing adjustment seat, and the spacing adjustment seat is provided on the workbench 2;

[0011] The spacing adjustment structure includes a spacing sliding rod, and the sampling cross frame includes a spacing sliding sleeve and a spacing fixed end. The spacing fixed end is connected to one end of the spacing sliding rod, and the other end of the spacing sliding rod is arranged inside the spacing sliding sleeve and is slidably connected to the spacing sliding sleeve.

[0012] Preferably, the horizontal moving assembly includes a hydraulic cylinder three, the hydraulic cylinder three is arranged on both sides of the support frame, and the hydraulic rod of the hydraulic cylinder three is connected to the horizontal moving seat;

[0013] The sampling side frame includes a horizontal sliding sleeve and a horizontal fixed rod. One end of the horizontal fixed rod is connected to the sampling cross frame, and the other end of the horizontal fixed rod is arranged inside the horizontal sliding sleeve and is slidingly connected to the horizontal sliding sleeve. The horizontal movable seat is arranged at the end of the horizontal sliding sleeve away from the sampling assembly.

[0014] Preferably, the visual detection and positioning component includes a visual sensor, which is connected to the sampling cross bar through a pitch adjustment structure. The pitch adjustment structure includes side panels arranged on both sides of the visual sensor. The visual sensor is rotatably connected to the side panels through a rotating rod. A pitch motor is provided on the sampling cross bar, and the output end of the pitch motor is connected to the rotating rod.

[0015] Preferably, the sampling assembly further comprises a flip hydraulic cylinder symmetrically arranged on the support frame, the bottom end of the flip hydraulic cylinder is hinged to the support frame, and the hydraulic rod of the flip hydraulic cylinder is hinged to the side of the flip seat.

[0016] The present invention also provides a method for using an automatic sampling system suitable for DART-MS, comprising the following steps:

[0017] Step 1: Move the sampling robot to the target location via the moving wheels;

[0018] Step 2: The host computer controls the visual sensor to detect the position and transmits its image information back to the host computer in real time;

[0019] Step 3: The upper computer controls the hydraulic cylinder 2 to adjust the distance between the two servo motors, and the servo motors simultaneously drive the rotating rollers to reel in and unreel;

[0020] Step 4: Control the hydraulic cylinder 1 through the host computer to adjust the height of the servo motor;

[0021] Step 5: Control the hydraulic cylinder 3 through the host computer to drive the servo motor to extend forward, so that the sample conveyor belt extends forward, and cooperate with the height adjustment component to adjust the sample conveyor belt;

[0022] Step 6: The sample is spotted on the sample conveyor belt by the spotter. After the flip hydraulic cylinder drives the flip seat to flip 90 degrees, the position of the sample conveyor belt is adjusted by the host computer so that the sample conveyor belt is transferred to the space between the two ceramic tubes between the DART ion source and the mass spectrometer end.

[0023] Step 7: The servo motor starts and the sample conveyor belt drives, so that the sample is ionized and enters the mass spectrometer detection.

[0024] Therefore, the present invention adopts the above-mentioned automatic sampling system suitable for DART-MS and its use method, which has the following beneficial effects:

[0025] (1) The present invention can adjust the height and spacing of the injection assembly through the injection robot, and control the forward extension of the injection assembly, automatically placing the sample conveyor belt of the injection assembly between the DART ion source and the mass spectrometer end, making it more convenient to use.

[0026] (2) The present invention uses a servo motor and a sample conveyor belt made of special materials to transport samples, ionize them and send them to mass spectrometry for detection. There is no need for manual sampling, the operation is simple and convenient, the sampling speed is faster, the throughput is higher, and the processing efficiency can be improved.

[0027] (3) The present invention can control the sample delivery speed of the sample delivery conveyor belt through a servo motor, and set different delivery speeds for samples, thereby controlling the sample delivery speed; the sample delivery conveyor belt adopts a stainless steel mesh, which can be recycled after cleaning after use, which is more environmentally friendly.

[0028] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A three-dimensional diagram of an automatic sampling system according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic side structural diagram of an automatic sampling system according to an embodiment of the present invention;

[0031] Figure 3 A top view of the sample injection rack according to an embodiment of the present invention;

[0032] Figure 4 A top view of a visual detection and positioning assembly according to an embodiment of the present invention;

[0033] Figure 5 This is a schematic diagram of the flip seat after flipping 90 degrees according to an embodiment of the present invention;

[0034] Figure 6 This is a schematic diagram of sample injection according to an embodiment of the present invention;

[0035] Figure 7 A schematic structural diagram of a sample conveyor belt according to an embodiment of the present invention;

[0036] Figure 8 1 is a top view of a spotter assembly according to an embodiment of the present invention.

[0037] Reference numerals

[0038] 1. Support frame; 2. Workbench 1; 3. Workbench 2; 4. Sample feeding horizontal frame; 5. Sample feeding side frame; 6. Servo motor; 7. Rotating roller; 8. Sample feeding conveyor belt; 9. Moving wheel; 10. Hydraulic cylinder 1; 11. Base 1; 12. Base 2; 13. Hydraulic cylinder 2; 14. Spacing sliding rod; 15. Spacing sliding sleeve; 16. Spacing fixed end; 17. Spacing adjustment seat; 18. Hydraulic cylinder 3; 19. Horizontal moving seat; 20. Horizontal sliding sleeve; 21. Horizontal fixed rod; 22. Visual sensor; 23. Side panel; 24. Mounting seat; 25. Flip seat; 26. Flip hydraulic cylinder; 27. Sample spotter; 28. Sliding frame; 29. ​​Sliding slot; 30. Hydraulic cylinder 4. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages disclosed in the embodiments of the present invention clearer, the embodiments of the present invention are further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. Examples of the embodiments are shown in the accompanying drawings, where the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions.

[0040] It should be noted that the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or server that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or devices.

[0041] Like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0042] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0043] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0044] Example 1

[0045] like Figure 1 、 Figure 2 As shown, the present invention provides an automatic sampling system suitable for DART-MS, including a sampling robot with a mobile function, the sampling robot including a support frame 1, a workbench is provided at the bottom end of the support frame 1, and the workbench is connected to the base through a height adjustment component. The workbench includes workbench 1 2 and workbench 2 3, and the support frame 1 is fixedly connected to the top of workbench 1 2 and workbench 2 3 respectively by bolts or other locking elements. The bottom ends of workbench 1 2 and workbench 2 3 are both provided with moving wheels. The moving wheels can be universal wheels, which facilitate the movement of the sampling robot and make it more convenient to use. The sampling robot communicates with the host computer through existing wireless communication methods, and the host computer controls the robot.

[0046] The height adjustment assembly includes hydraulic cylinder 9 and moving wheels 10, and the base includes base 11 and base 2 12. The tops of base 11 and base 2 12 are connected to the bottoms of workbench 1 2 and workbench 2 3, respectively, via hydraulic cylinder 9 and moving wheels 10. The hydraulic cylinder 9 and moving wheels 10 drive the entire base down, lifting the upper portion of the entire sampling robot. This not only lifts the moving wheels off the ground, increasing the robot's stability during operation, but also allows for adjustment of the height of the sampling robot's sampling assembly.

[0047] The workbench is provided with a spacing adjustment component. The top of the support frame 1 is provided with a sample feeding rack. The sample feeding rack includes a sample feeding horizontal rack 4 in the middle and sample feeding side racks 5 on both sides. The sample feeding components are provided at the ends of the sample feeding side racks 5 away from the sample feeding horizontal rack 4. The spacing adjustment component includes a hydraulic cylinder 2 13 and a spacing adjustment structure provided on the sample feeding horizontal rack 4. The hydraulic cylinder 2 13 is provided at the rear side of the workbench 1 2. The hydraulic rod of the hydraulic cylinder 2 13 is connected to the spacing adjustment seat 17. The spacing adjustment seat 17 is fixed to the rear side of the workbench 2 3 by bolts or other locking elements. Figure 3 As shown, the spacing adjustment structure includes a spacing sliding rod 14, and the sample feed frame 4 includes a spacing sliding sleeve 15 and a spacing fixed end 16. The spacing fixed end 16 is connected to one end of the spacing sliding rod 14, while the other end of the spacing sliding rod 14 is disposed within and slidably connected to the spacing sliding sleeve 15. Hydraulic cylinder 2 13 drives the spacing adjustment seat 17, which in turn drives the movement of worktable 2 3. The spacing between worktables 1 2 and 2 3 is adjusted in conjunction with the moving wheels. At this time, the spacing sliding rod 14 slides outward within the spacing sliding sleeve 15 to adjust the spacing of the sample feed components.

[0048] The sample feeding side frame 5 is provided with a horizontal moving assembly. The horizontal moving assembly includes a hydraulic cylinder 3 18, which is provided on both sides of the support frame 1, and the hydraulic rod of the hydraulic cylinder 3 18 is connected to the horizontal moving seat 19. Figure 3 As shown, the sample feed side frame 5 includes a horizontal sliding sleeve 20 and a horizontal fixed rod 21. One end of the horizontal fixed rod 21 is fixedly connected to the sample feed cross frame 4, while the other end of the horizontal fixed rod 21 is disposed within and slidably connected to the horizontal sliding sleeve 20. A horizontal movable seat 19 is fixedly disposed at the end of the horizontal sliding sleeve 20 away from the sample feed assembly. A hydraulic cylinder 18 drives the horizontal movable seat 19, thereby moving the horizontal sliding sleeve 20 forward. At this point, the horizontal sliding rod slides outward within the horizontal sliding sleeve 20, thereby extending the sample feed assembly forward.

[0049] The sample feeding assembly includes two symmetrically arranged servo motors 6, the output shafts of the servo motors 6 are connected to rotating rollers 7 for unwinding and rewinding, and a sample feeding conveyor belt 8 is wound on the rotating rollers 7. Figure 5 As shown, a tilting seat 25 is provided at the end of the sample-feeding side frame 5, which is rotatably connected to the sample-feeding side frame 5. A servo motor 6 is disposed at the top of the tilting seat. The sample-feeding assembly also includes a tilting hydraulic cylinder 26 symmetrically disposed on the support frame. The bottom end of the tilting hydraulic cylinder 26 is hinged to the support frame 1, and the hydraulic rod of the tilting hydraulic cylinder 26 is hinged to the side of the tilting seat 25.

[0050] like Figure 7As shown, the sample conveyor belt 8 utilizes a stainless steel mesh. In the prior art, samples are spotted on a plate-like carrier made of a stainless steel mesh and manually positioned between the DART ion source and the MS. The present invention utilizes a stainless steel mesh plate in conjunction with a servo motor 6 to create a retractable and unreelable sample conveyor belt 8, eliminating the need for manual sample delivery. This design also allows for multiple sample deliveries, with adjustable speeds and intervals. The sample conveyor belt's speed can be controlled and adjusted by the servo motor 6, allowing for a range of batch speeds, such as 1 mm / s, 2 mm / s, and so on.

[0051] The sample feeding horizontal frame 4 is provided with a visual detection positioning component. Figure 4 As shown, the visual detection and positioning assembly includes a visual sensor 22, which is connected to the sampling crossbar via a pitch adjustment structure. The pitch adjustment structure includes side panels 23 arranged on both sides of the visual sensor 22, and the visual sensor 22 is rotatably connected to the side panels 23 via a rotating rod. A pitch motor is provided on the sampling crossbar, and the output end of the pitch motor is connected to the rotating rod. The visual sensor 22 can be a high-definition camera, and two high-definition cameras are provided. The side panel 23 of one high-definition camera is fixed to the spacing sliding sleeve 15, and the side panel 23 of the other high-definition camera is fixed to the spacing fixed end 16, which will not affect the spacing adjustment. The pitch motor can adjust the pitch angle of the high-definition camera.

[0052] The method for using the automatic sampling system suitable for DART-MS according to the present invention comprises the following steps:

[0053] Step 1: Move the sampling robot to the target location via the moving wheels;

[0054] Step 2: The host computer controls the visual sensor 22 to perform position detection and transmits its image information back to the host computer in real time;

[0055] Step 3: The upper computer controls the hydraulic cylinder 2 13 to adjust the distance between the two servo motors 6. The servo motors 6 simultaneously drive the rotating roller 7 to reel in and unreel.

[0056] Step 4: Control the hydraulic cylinder 9 to move the wheel through the host computer; 10: Adjust the height of the servo motor 6;

[0057] Step 5: The upper computer controls the hydraulic cylinder 3 18 to drive the servo motor 6 to extend forward, so that the sample conveyor belt 8 extends forward, and cooperates with the height adjustment component to adjust the sample conveyor belt 8;

[0058] Step 6: The sample is spotted on the sample conveyor belt 8 by the sample spotter 27. After the turning hydraulic cylinder 26 drives the turning seat 25 to turn 90 degrees, the position of the sample conveyor belt 8 is adjusted by the host computer so that the sample conveyor belt 8 is transferred to the space between the two ceramic tubes between the DART ion source and the mass spectrometer end;

[0059] Step seven: the servo motor 6 is started and the sample conveyor belt 8 is driven, so that the sample is ionized and enters the mass spectrometer detection.

[0060] In this embodiment, each roll of mesh (sample conveyor belt 8) is 10 meters long, and the sample placement interval is 1 cm. Therefore, each roll of mesh can process at least 1,000 samples. This design is intended to improve work efficiency and simplify the operation process. The mesh length and sample placement interval can be adjusted according to actual conditions.

[0061] Example 2

[0062] like Figure 1 、 Figure 8 As shown, a mounting base 24 is provided on one side of the servo motor 6, and a hydraulic cylinder 430 is provided on the mounting base 24. The hydraulic rod of the hydraulic cylinder 430 is connected to the sliding frame 28. A sliding slot 29 is provided on the mounting base 24, and the bottom end of the sliding frame 28 is inserted into the sliding slot 29 and is slidably connected to the sliding slot 29. A sample spotter 27 is provided at the top of the sliding frame 28. The sample spotter 27 adopts an existing structure. The hydraulic cylinder 430 drives the sliding frame 28 to extend forward, thereby driving the sample spotter 27 to move above the sample conveyor belt 8 for sample spotting. After the sample conveyor belt 8 is turned over, the sample spotter 27 is driven by the sliding frame 28 to retract, without affecting the transmission of the sample conveyor belt 8.

[0063] Therefore, the present invention adopts the above-mentioned automatic sampling system suitable for DART-MS and its use method, which can solve the problem that the existing DART-MS system adopts open manual sampling, has slow injection speed and low throughput, resulting in low processing efficiency and affecting the accuracy of analysis results.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solutions of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. An automatic sampling system suitable for DART-MS, characterized by: The invention comprises a sampling robot with a mobile function, the sampling robot comprises a support frame, a workbench is provided at the bottom end of the support frame, the workbench is connected to the base through a height adjustment component, a spacing adjustment component is provided on the workbench, a sampling rack is provided at the top end of the support frame, the sampling rack comprises a sampling cross frame located in the middle and sampling side frames located on both sides, a horizontal moving component is provided on the sampling side frame, a visual detection and positioning component is provided on the sampling cross frame, and a sampling assembly is provided at the end of the sampling side frame away from the sampling cross frame.

2. The automatic sample loading system for DART-MS according to claim 1, characterized in that: The sampling assembly includes two symmetrically arranged servo motors, the output shafts of the servo motors are connected to rotating rollers for unwinding and rewinding, and a sample conveyor belt is wound on the rotating rollers; a flip seat is provided at the end of the sampling side frame, and the flip seat is rotatably connected to the sampling side frame, and the servo motor is arranged at the top of the flip seat.

3. The automatic sampling system suitable for DART-MS according to claim 2, characterized in that: The sample conveyor belt adopts stainless steel mesh.

4. The automatic sampling system suitable for DART-MS according to claim 1, characterized in that: The workbench comprises a workbench 1 and a workbench 2, and the bottom ends of the workbench 1 and the workbench 2 are both provided with moving wheels.

5. The automatic sampling system suitable for DART-MS according to claim 1, characterized in that: The height adjustment component includes a hydraulic cylinder 1, and the base includes a base 1 and a base 2. The top ends of the base 1 and the base 2 are connected to the bottom ends of the workbench 1 and the workbench 2 respectively through the hydraulic cylinder 1.

6. The automatic sampling system suitable for DART-MS according to claim 4, characterized in that: The spacing adjustment assembly includes a hydraulic cylinder 2 and a spacing adjustment structure arranged on the sample feeding horizontal frame. The hydraulic cylinder 2 is arranged on the workbench 1. The hydraulic rod of the hydraulic cylinder 2 is connected to the spacing adjustment seat. The spacing adjustment seat is arranged on the workbench 2. The spacing adjustment structure includes a spacing sliding rod, and the sampling cross frame includes a spacing sliding sleeve and a spacing fixed end. The spacing fixed end is connected to one end of the spacing sliding rod, and the other end of the spacing sliding rod is arranged inside the spacing sliding sleeve and is slidably connected to the spacing sliding sleeve.

7. The automatic sampling system suitable for DART-MS according to claim 1, characterized in that: The horizontal movement assembly includes a hydraulic cylinder 3, which is arranged on both sides of the support frame, and the hydraulic rod of the hydraulic cylinder 3 is connected to the horizontal movement seat; The sampling side frame includes a horizontal sliding sleeve and a horizontal fixed rod. One end of the horizontal fixed rod is connected to the sampling cross frame, and the other end of the horizontal fixed rod is arranged inside the horizontal sliding sleeve and is slidingly connected to the horizontal sliding sleeve. The horizontal movable seat is arranged at the end of the horizontal sliding sleeve away from the sampling assembly.

8. The automatic sampling system suitable for DART-MS according to claim 1, characterized in that: The visual detection and positioning component includes a visual sensor, which is connected to the sampling crossbar through a pitch adjustment structure. The pitch adjustment structure includes side panels arranged on both sides of the visual sensor. The visual sensor is rotatably connected to the side panels through a rotating rod. A pitch motor is provided on the sampling crossbar, and the output end of the pitch motor is connected to the rotating rod.

9. The automatic sampling system suitable for DART-MS according to claim 2, characterized in that: The sampling assembly also includes a turning hydraulic cylinder symmetrically arranged on the supporting frame, the bottom end of the turning hydraulic cylinder is hinged to the supporting frame, and the hydraulic rod of the turning hydraulic cylinder is hinged to the side of the turning seat.

10. A method for using an automatic sampling system suitable for DART-MS, characterized in that: The automatic sampling system for DART-MS according to any one of claims 1 to 9 comprises the following steps: Step 1: Move the sampling robot to the target location via the moving wheels; Step 2: The host computer controls the visual sensor to detect the position and transmits its image information back to the host computer in real time; Step 3: The upper computer controls the hydraulic cylinder 2 to adjust the distance between the two servo motors, and the servo motors simultaneously drive the rotating rollers to reel in and unreel; Step 4: Control the hydraulic cylinder 1 through the host computer to adjust the height of the servo motor; Step 5: Control the hydraulic cylinder 3 through the host computer to drive the servo motor to extend forward, so that the sample conveyor belt extends forward, and cooperate with the height adjustment component to adjust the sample conveyor belt; Step 6: The sample is spotted on the sample conveyor belt by the spotter. After the flip hydraulic cylinder drives the flip seat to flip 90 degrees, the position of the sample conveyor belt is adjusted by the host computer so that the sample conveyor belt is transferred to the space between the two ceramic tubes between the DART ion source and the mass spectrometer end. Step 7: The servo motor starts and the sample conveyor belt drives, so that the sample is ionized and enters the mass spectrometer detection.

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