A system for batch mass spectrometry detection

Abstract

This invention discloses a system for batch mass spectrometry detection. The system includes: a mass spectrometer body, a sample introduction device located on the side of the mass spectrometer body, and at least one capillary tube. In the assembled state: the sample introduction device includes a fixing plate, a placement plate, and a connecting mechanism; the connecting mechanism is installed on the side wall of the mass spectrometer body; the placement plate is installed on the connecting mechanism and has at least one placement hole for placing a sample container; the fixing plate is installed on the connecting mechanism and has at least one sampling block; one end of the at least one capillary tube is connected to the mass spectrometer body, and the other end passes through the sampling block and extends into the sample container to extract the sample to be tested from the sample container and introduce it into the mass spectrometer body, realizing batch extraction of the sample to be tested and batch mass spectrometry detection of the sample to be tested, improving the efficiency of sample introduction and thus improving the efficiency of mass spectrometry detection.

Description

Technical Field

[0001] This invention relates to the field of mass spectrometry detection technology, and in particular to a system for batch mass spectrometry detection. Background Technology

[0002] The core of mass spectrometry detection lies in utilizing electromagnetic principles to separate charged sample ions according to their mass-to-charge ratio. Inside the mass spectrometer, these ions are influenced by a magnetic field, thus distinguishing ions with different mass-to-charge ratios. Current technologies primarily involve sequentially introducing sample tubes into the mass spectrometer in chronological order. This sample introduction method offers relatively stable performance. Summary of the Invention

[0003] The inventors of this application have discovered that, although the sample introduction process of existing mass spectrometry detection methods is relatively stable, this sample introduction method has the problem of low sample introduction efficiency. When there are many samples that need to be detected by mass spectrometry, the efficiency of mass spectrometry detection will be low.

[0004] In view of the above problems, the present invention is proposed to provide a system and method for batch mass spectrometry detection that overcomes or at least partially solves the above problems.

[0005] In a first aspect, embodiments of the present invention provide a system for batch mass spectrometry detection, comprising: a mass spectrometer body, a sample introduction device located on the side of the mass spectrometer body, and at least one capillary tube, wherein the system is in an assembled state:

[0006] The sample injection device includes a fixing plate, a placement plate, and a connecting mechanism;

[0007] The connecting mechanism is installed on the side wall of the mass spectrometer body;

[0008] The placement plate is mounted on the connecting mechanism and is provided with at least one placement hole for placing a sample container;

[0009] The fixing plate is mounted on the connecting mechanism and is provided with at least one sampling block;

[0010] The at least one capillary tube is connected at one end to the mass spectrometer body and at the other end extends through the sampling block into the sample container to extract the sample to be tested from the sample container and introduce it into the mass spectrometer body.

[0011] In one embodiment, the fixing plate has at least one first through hole, and a sampling block is provided at each first through hole position. The sampling block has a second through hole, and the capillary can pass through the first through hole and the second through hole.

[0012] In one embodiment, a first groove is formed on the upper surface of the fixing plate, and at least one sampling block is disposed in the first groove.

[0013] In one embodiment, the sampling block has a conical structure, the second through hole is a stepped hole, and the middle section of the stepped hole is provided with an annular groove to accommodate an annular airbag, the annular airbag being used to limit the capillary.

[0014] In one embodiment, the position of the placement hole on the placement plate corresponds to the position of the first through hole on the fixing plate;

[0015] The placement plate has a second groove, and the placement hole is disposed in the second groove.

[0016] In one embodiment, the connecting mechanism is provided with a first rotating shaft, the placement plate is connected to the connecting mechanism via the first rotating shaft, and the placement plate is rotatable around the first rotating shaft; and / or

[0017] The connecting mechanism is provided with a second rotating shaft, and the fixing plate is connected to the connecting mechanism through the second rotating shaft. The fixing plate can rotate around the second rotating shaft.

[0018] In one embodiment, the connecting mechanism includes two slide rods, a lower connecting block connected to the lower end of the slide rods, a slider slidably connected to the slide rods, and a limiting seat connected to the lower end of the lower connecting block;

[0019] The lower connecting block is provided with a first rotating shaft, and the slider is provided with a second rotating shaft;

[0020] The limiting seat is used to limit the position of the placement plate.

[0021] In one embodiment, the connecting mechanism further includes an upper connecting block located at the upper end of the slide bar, and the connecting mechanism is connected to the mass spectrometer body through the upper connecting block and the lower connecting block;

[0022] The upper surface of the limiting seat is provided with a strip-shaped airbag, which is used to buffer the placement plate when the placement plate rotates.

[0023] In one embodiment, a limiting plate extends from the front sidewall of the slider, the limiting plate being used to limit the position of the fixing plate.

[0024] In one embodiment, limit holes are respectively provided at both ends of the slider, and the two slide rods pass through the two limit holes to slide axially along the limit holes;

[0025] The side wall of the limiting hole is provided with a locking threaded hole for connecting a locking screw, which is used to lock the slider.

[0026] Secondly, embodiments of the present invention provide a method for batch mass spectrometry detection, implemented using the batch mass spectrometry detection system as described above, including:

[0027] Place the sample container containing the sample to be tested into the placement hole;

[0028] The other end of the capillary is inserted into the sample container, and the sample to be tested is introduced into the mass spectrometer body through the capillary for detection.

[0029] In one embodiment, the method further includes: rotating the placement plate to a horizontal position before placing the sample container containing the sample to be tested into the placement hole; and,

[0030] After placing the sample container containing the sample to be tested into the placement hole, rotate the fixing plate to a horizontal position.

[0031] The beneficial effects of the above-described technical solutions provided in the embodiments of the present invention include at least the following:

[0032] The batch mass spectrometry detection system provided in this embodiment of the invention, through the cooperation between the fixing plate and the placement plate, enables at least one capillary to pass through at least one sampling block on the fixing plate and extend into the sample container during the mass spectrometry detection of the sample to be tested. This allows the sample to be extracted from the sample container and introduced into the mass spectrometer body. Since multiple sample containers can be placed on the placement plate, and there are corresponding sampling blocks on the fixing plate, multiple capillary tubes can also be set to take samples from the sample containers respectively. This enables batch extraction of the sample to be tested and batch mass spectrometry detection of the sample to be tested, improving the efficiency of sample introduction and thus improving the efficiency of mass spectrometry detection.

[0033] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings.

[0034] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0035] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0036] Figure 1 This is a perspective view of the batch mass spectrometry detection system in an embodiment of the present invention;

[0037] Figure 2This is a perspective view of the sample introduction device of the batch mass spectrometry detection system in an embodiment of the present invention;

[0038] Figure 3 This is a perspective view of the connection mechanism of the batch mass spectrometry detection system in an embodiment of the present invention;

[0039] Figure 4 This is a cross-sectional view of the sampling block of the batch mass spectrometry detection system in an embodiment of the present invention;

[0040] Figure 5 This is a perspective view of the slider of the batch mass spectrometry detection system in an embodiment of the present invention;

[0041] The reference numerals in the figure are as follows: 1. Mass spectrometer body; 2. Capillary tube; 3. Fixing plate; 31. First groove; 311. First through hole; 32. Sampling block; 321. Second through hole; 322. Annular groove; 323. Annular airbag; 4. Placement plate; 41. Second groove; 42. Placement hole; 5. Connecting mechanism; 51. Upper connecting block; 511. Sliding rod; 52. Lower connecting block; 521. First rotating shaft; 53. Sliding block; 531. Second rotating shaft; 532. Limiting plate; 533. Locking threaded hole; 534. Locking screw; 54. Limiting seat; 541. Strip-shaped airbag. Detailed Implementation

[0042] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0043] This invention provides a system for batch mass spectrometry detection, referring to... Figure 1 As shown, it includes: a mass spectrometer body 1, a sample introduction device located on the side of the mass spectrometer body 1, and at least one capillary tube 2. Figure 1 (Taking a capillary tube 2 as an example for illustration), the system in the assembled state:

[0044] The sample injection device includes a fixing plate 3, a placement plate 4, and a connecting mechanism 5. A perspective view of the sample injection device is provided below. Figure 2 As shown;

[0045] The connecting mechanism 5 is installed on the side wall of the mass spectrometer body 1. A perspective view of the connecting mechanism 5 is shown below. Figure 3 As shown;

[0046] The placement plate 4 is mounted on the connecting mechanism 5 and is provided with at least one placement hole 42 for placing a sample container, such as a test tube or other container that can hold the sample to be tested.

[0047] The fixing plate 3 is mounted on the connecting mechanism 5 and is provided with at least one sampling block 32;

[0048] The at least one capillary tube 2 is connected at one end to the mass spectrometer body 1, and the other end passes through the sampling block 32 and extends into the sample container to extract the sample to be tested from the sample container and introduce it into the mass spectrometer body 1. After the sample to be tested is introduced into the mass spectrometer body 1, it will be detected by mass spectrometry by the mass spectrometer body 1.

[0049] In the system in the above-described assembled state, both the placement plate 4 and the fixing plate 3 are connected to the connecting mechanism 5. The connection between the placement plate 4, the fixing plate 3, and the connecting mechanism 5 can be varied. For example, both the placement plate 4 and the fixing plate 3 can be fixedly connected to the connecting mechanism 5, and both the placement plate 4 and the fixing plate 3 are in a horizontal position; or, both the placement plate 4 and the fixing plate 3 can be movably connected to the connecting mechanism 5, and both the placement plate 4 and the fixing plate 3 can rotate relative to the connecting mechanism 5, for example, they can rotate from a vertical position to a horizontal position; or the placement plate 4 can be fixedly connected, and the fixing plate 3 can be flipped relative to the connecting mechanism 5. In this embodiment, the connection between the placement plate 4, the fixing plate 3, and the connecting mechanism 5 can be designed as needed, and any connection method that can achieve the extraction of the sample to be tested is within the protection scope of this invention.

[0050] The connecting mechanism 5 is installed on the side wall of the mass spectrometer body 1. The connection between the connecting mechanism 5 and the mass spectrometer body 1 can be, for example, a fixed connection or a movable connection. In the system in the above-described assembled state, the connection between the connecting mechanism 5 and the mass spectrometer body 1 is not limited. Any connection method that can extract the sample to be tested is within the protection scope of this invention.

[0051] Furthermore, the fixing plate 3 has at least one first through hole 311, and a sampling block 32 is provided at the position of each first through hole 311. The sampling block 32 has a second through hole 321, and the capillary 2 can pass through the first through hole 311 and the second through hole 321.

[0052] At least one first through hole 311 is provided on the fixing plate 3, which penetrates the upper and lower surfaces of the fixing plate 3. At least one sampling block 32 is provided on the upper surface of the fixing plate 3. The position of each sampling block 32 corresponds to the position of each first through hole 311. Each sampling block 32 has a second through hole 321, which corresponds to the position of the first through hole 311. The lower end of the second through hole 321 is directly connected to the upper end of the first through hole 311. The capillary tube 2 can pass through the second through hole 321 and the first through hole 311 in sequence and exit the fixing plate 3.

[0053] Furthermore, a first groove 31 is provided on the upper surface of the fixing plate 3, and at least one sampling block 32 is disposed in the first groove 31.

[0054] As an optional embodiment of the present invention, a first groove 31 is provided on the upper surface of the fixing plate 3, and at least one sampling block 32 is disposed in the first groove 31. This embodiment can protect the sampling block 32, prevent the sampling block 32 from being directly exposed on the upper surface of the fixing plate 3, reduce the user's contact with the sampling block 32, and reduce the damage to the sampling block 32.

[0055] Furthermore, referring to Figure 4 As shown, the sampling block 32 has a conical structure, and the second through hole 321 is a stepped hole. The middle section of the stepped hole has an annular groove 322 to accommodate an annular air bladder 323, which is used to limit the capillary 2. Optionally, the sampling block 32 can be a cone, or it can be... Figure 4 The structure shown is a flat plate plus a cone.

[0056] When the capillary tube 2 passes through the second through hole 321 of the sampling block 32 from the upper end and exits from the lower end of the first through hole 311 of the fixing plate 3, the capillary tube 2 can be limited by the annular airbag 323, thereby controlling the length of the capillary tube 2 extending out of the lower end of the fixing plate 3.

[0057] Furthermore, the placement hole 42 on the placement plate 4 corresponds to the position of the first through hole 311 on the fixing plate 3; the placement plate 4 is provided with a second groove 41, and the placement hole 42 is disposed in the second groove 41.

[0058] The placement hole 42 on the placement plate 4 corresponds to the position of the first through hole 311 on the fixing plate 3. That is, when both the placement plate 4 and the fixing plate 3 are in a horizontal position, the placement hole 42 on the placement plate 4 and the first through hole 311 on the fixing plate 3 are in a one-to-one vertical correspondence, so that after the capillary 2 passes through the first through hole 311 on the fixing plate 3, it can be vertically inserted into the sample container in the corresponding placement hole 42. As an optional embodiment of the present invention, a second groove 41 is provided on the upper surface of the placement plate 4, and the placement hole 42 is disposed in the second groove 41, so that the sample container can be placed more conveniently in the placement hole 42 and the sample container can be prevented from being touched and tipped over.

[0059] Furthermore, the connecting mechanism 5 is provided with a first rotating shaft 521, and the placement plate 4 is connected to the connecting mechanism 5 through the first rotating shaft 521, and the placement plate 4 can rotate around the first rotating shaft 521; and / or the connecting mechanism 5 is provided with a second rotating shaft 531, and the fixing plate 3 is connected to the connecting mechanism 5 through the second rotating shaft 531, and the fixing plate 3 can rotate around the second rotating shaft 531.

[0060] In this embodiment of the invention, a first rotating shaft 521 is disposed at the lower part of the connecting mechanism 5. One end of the placement plate 4 is connected to the connecting mechanism 5 via the first rotating shaft 521. Due to the first rotating shaft 521, the placement plate 4 can rotate around the first rotating shaft 521. For example, the placement plate 4 can rotate from a vertical position to a horizontal position, and from a horizontal position to a vertical position. A second rotating shaft 531 is disposed at the upper part of the connecting mechanism 5. One end of the fixing plate 3 is connected to the connecting mechanism 5 via the second rotating shaft 531. Due to the second rotating shaft 531, the fixing plate 3 can rotate around the second rotating shaft 531. For example, the fixing plate 3 can rotate from a vertical position to a horizontal position, and from a horizontal position to a vertical position. In one embodiment of the present invention, both the placement plate 4 and the fixing plate 3 can be rotated in the manner described above; another embodiment is that the placement plate 4 can be rotated in the manner described above, while the fixing plate 3 is fixedly connected to the connecting structure and cannot rotate; yet another embodiment is that the fixing plate 3 can be rotated in the manner described above, while the placement plate 4 is fixedly connected to the connecting structure and cannot rotate; as a preferred embodiment of the present invention, both the placement plate 4 and the fixing plate 3 can be rotated in the manner described above. When mass spectrometry detection is not required, both the placement plate 4 and the fixing plate 3 can be rotated to a vertical position to save space and prevent accidental damage to the placement plate 4 and the fixing plate 3. The first rotating shaft 521 and the second rotating shaft 531 can be, for example, a single cylindrical rod or two short cylindrical rods, or other shapes of rotating shafts. The specific shapes of the first rotating shaft 521 and the second rotating shaft 531 are not limited in the present invention.

[0061] Furthermore, the connecting mechanism 5 includes two slide rods 511, a lower connecting block 52 connected to the lower end of the slide rods 511, a slider 53 slidably connected to the slide rods 511, and a limiting seat 54 connected to the lower end of the lower connecting block 52.

[0062] The lower connecting block 52 is provided with a first rotating shaft 521, and the slider 53 is provided with a second rotating shaft 531;

[0063] The limiting seat 54 is used to limit the placement plate 4.

[0064] In this embodiment of the invention, the first rotating shaft 521 is disposed on the lower connecting block 52 at the lower part of the connecting mechanism 5, and the second rotating shaft 531 is disposed on the slider 53 at the upper part of the connecting mechanism 5. (Refer to...) Figure 3 As shown, the lower connecting block 52 can be, for example, a rod-shaped body with a relatively short rod-shaped body connected to each end. The first rotating shaft 521 is disposed on the relatively short rod-shaped body. The shape of the lower connecting block 52 is not limited to the shape described above; it can also be other shapes. The position of the first rotating shaft 521 is also not limited to the position described above; it can also be disposed at other positions on the lower connecting block 52. (Refer to...) Figure 3 As shown, the shape of the slider 53 can be, for example, a rod-shaped body with two protrusions connected to it, and the second rotating shaft 531 is disposed on the two protrusions; the shape of the slider 53 is not limited to the shape described above, and can also be other shapes, and the setting position of the second rotating shaft 531 is not limited to the setting position described above, and can also be set in other positions of the slider 53.

[0065] The limiting seat 54 is connected to the lower end of the lower connecting block 52. When the placement plate 4 rotates from the vertical position to the horizontal position, the limiting seat 54 can limit the placement plate 4 to ensure that the placement plate 4 stops rotating when it reaches the horizontal position and remains in the horizontal position.

[0066] Furthermore, the connecting mechanism 5 also includes an upper connecting block 51 located at the upper end of the slide bar 511, and the connecting mechanism 5 is connected to the mass spectrometer body 1 through the upper connecting block 51 and the lower connecting block 52;

[0067] The upper end face of the limiting seat 54 is provided with a strip-shaped airbag 541, which is used to buffer the placement plate 4 when the placement plate 4 rotates.

[0068] In addition to the structure described above, the connecting mechanism 5 also includes an upper connecting block 51 connected to the upper end of the slide rod 511. The number of upper connecting blocks 51 can be one, two, or more, for example, refer to... Figure 3As shown, there are four upper connecting blocks 51, two of which are located at the upper end of the slide bar 511, and the other two are located in the middle between the slide bar 511 and the lower connecting block 52. Figure 3 The number and shape of the upper connecting blocks 51 shown are merely illustrative, and the number and shape of the upper connecting blocks 51 are not limited in this invention. The upper connecting blocks 51 and the lower connecting blocks 52 are respectively fixedly connected to the upper and lower sides of the side wall of the mass spectrometer body 1, and the connecting mechanism 5 is connected to the mass spectrometer body 1 through the upper connecting blocks 51 and the lower connecting blocks 52.

[0069] Furthermore, a limiting plate 532 extends from the front side wall of the slider 53, and the limiting plate 532 is used to limit the fixing plate 3.

[0070] Reference Figure 3 As shown, the front side wall of the slider 53 extends a limiting plate 532. When the fixed plate 3 rotates from the vertical position to the horizontal position, the limiting plate 532 can limit the fixed plate 3 to ensure that the fixed plate 3 stops rotating when it reaches the horizontal position and remains in the horizontal position.

[0071] Furthermore, limit holes are respectively opened at both ends of the slider 53, and the two slide rods 511 pass through the two limit holes respectively to slide along the axial direction of the limit holes;

[0072] Reference Figure 5 As shown, the side wall of the limiting hole is provided with a locking threaded hole 533 to connect a locking screw 534, which is used to lock the slider 53.

[0073] The slider 53 can slide up and down on the two slide rods 511 through the limiting holes at both ends. When it slides to a certain position, the locking screw 534 rotates in the locking thread hole 533 until it contacts the slide rod 511, thereby locking the position of the slider 53.

[0074] The present invention also provides a method for batch mass spectrometry detection, implemented using the batch mass spectrometry detection system described above, comprising:

[0075] Place the sample container containing the sample to be tested into the placement hole 42;

[0076] The other end of the capillary tube 2 is inserted into the sample container, and the sample to be tested is introduced into the mass spectrometer body 1 for detection through the capillary tube 2.

[0077] Furthermore, the method further includes: rotating the placement plate 4 to a horizontal position before placing the sample container containing the sample to be tested into the placement hole 42; and,

[0078] After placing the sample container containing the sample to be tested into the placement hole 42, rotate the fixing plate 3 to a horizontal position.

[0079] In operation, the system provided in this embodiment of the invention has capillary tubes 2, fixing plates 3, placement plates 4, and connecting mechanisms 5 all located on one side of the mass spectrometer body 1. At least one capillary tube 2 is present, allowing simultaneous sampling and analysis of at least one sample. The placement plate 4 is rotated 90° clockwise, and the limiting seat 54 holds it in a horizontal position. The sample to be tested is placed in the placement hole 42 on the placement plate 4. After the sample is placed on the placement plate 4, the fixing plate 3 is slid upwards to the top of the slide rod 511. The locking screw 534 is rotated to lock the slider 53 at the top of the slide rod 511. Then, the... Rotate 90° clockwise and limit the fixed plate 3 to a horizontal position by the limiting plate 532 on the slider 53. Then, insert at least one capillary tube 2 through the sampling block 32 and extend its bottom end out of the fixed plate 3. Fix the position of the capillary tube 2 by the annular airbag 323. Rotate the locking screw 534 again to release the lock on the position of the slider 53. Slide the slider 53 downward and move the fixed plate 3 downward so that the capillary tube 2 at the bottom of the fixed plate 3 extends into the sample container on the placement plate 4 and extracts the sample to be tested. Then, introduce it into the mass spectrometer body 1, so as to perform mass spectrometry analysis on several samples to be tested using the mass spectrometer body 1.

[0080] When mass spectrometry analysis is not required, the capillary tube 2 is removed from the fixed plate 3, and the fixed plate 3 is rotated 90° counterclockwise so that it adheres to the side wall of the mass spectrometer body 1. The fixed plate 3 is then slid onto the slide rod 511 by the slider 53. When it slides to the designated position, the locking screw 534 is rotated to fix the position of the slider 53. After the fixed plate 3 is retracted, the placement plate 4 is rotated counterclockwise so that it is parallel to the fixed plate 3 and also adheres to the side wall of the mass spectrometer body 1. This allows for the storage of the fixed plate 3 and the placement plate 4, saving space and preventing damage to them. By setting up the fixed plate 3 and the placement plate 4, when multiple samples need to be tested, the capillary tube 2 is simply perforated into the fixed plate 3 for fixation and positioning. By sliding it downwards, its bottom end can accurately extend into the sample, greatly improving the efficiency of mass spectrometry sample introduction.

[0081] The principle behind the problem solved by the above-mentioned batch mass spectrometry detection method is similar to that of the aforementioned batch mass spectrometry detection system. Therefore, the implementation of this method can refer to the implementation of the aforementioned system, and the repeated parts will not be described again.

[0082] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A system for batch mass spectrometric detection, characterized by, include: The mass spectrometer body, the sample introduction device located on the side of the mass spectrometer body, and at least one capillary tube are assembled in the following state: The sample injection device includes a fixing plate, a placement plate, and a connecting mechanism; The connecting mechanism is installed on the side wall of the mass spectrometer body; The placement plate is mounted on the connecting mechanism and is provided with at least one placement hole for placing a sample container; The fixing plate is mounted on the connecting mechanism and is provided with at least one sampling block; The at least one capillary tube is connected at one end to the mass spectrometer body and at the other end passes through the sampling block and extends into the sample container to extract the sample to be tested from the sample container and introduce it into the mass spectrometer body. The fixing plate has at least one first through hole, and a sampling block is provided at the position of each first through hole. The sampling block has a second through hole, and the capillary can pass through the first through hole and the second through hole. The upper surface of the fixing plate is provided with a first groove, and the at least one sampling block is disposed in the first groove; The sampling block has a conical structure, and the second through hole is a stepped hole. The middle section of the stepped hole is provided with an annular groove to accommodate an annular airbag. The annular airbag is used to limit the capillary.

2. The system as described in claim 1, characterized in that, The placement hole on the placement plate corresponds to the position of the first through hole on the fixing plate; The placement plate has a second groove, and the placement hole is disposed in the second groove.

3. The system as described in claim 1, characterized in that, The connecting mechanism is provided with a first rotating shaft, and the placement plate is connected to the connecting mechanism through the first rotating shaft. The placement plate can rotate around the first rotating shaft; and / or The connecting mechanism is provided with a second rotating shaft, and the fixing plate is connected to the connecting mechanism through the second rotating shaft. The fixing plate can rotate around the second rotating shaft.

4. The system as described in claim 3, characterized in that, The connecting mechanism includes two slide rods, a lower connecting block connected to the lower end of the slide rods, a slider slidably connected to the slide rods, and a limiting seat connected to the lower end of the lower connecting block; The lower connecting block is provided with a first rotating shaft, and the slider is provided with a second rotating shaft; The limiting seat is used to limit the position of the placement plate.

5. The system as described in claim 4, characterized in that, The connecting mechanism also includes an upper connecting block located at the upper end of the slide bar, and the connecting mechanism is connected to the mass spectrometer body through the upper connecting block and the lower connecting block; The upper surface of the limiting seat is provided with a strip-shaped airbag, which is used to buffer the placement plate when the placement plate rotates.

6. The system as described in claim 5, characterized in that, The front sidewall of the slider extends into a limiting plate, which is used to limit the position of the fixing plate.

7. The system as described in claim 6, characterized in that, Limiting holes are provided at both ends of the slider, and the two sliding rods pass through the two limiting holes to slide axially along the limiting holes; The side wall of the limiting hole is provided with a locking threaded hole for connecting a locking screw, which is used to lock the slider.

8. A method for batch mass spectrometry detection, characterized in that, Implemented using a system for batch mass spectrometry detection as described in any one of claims 1-7, comprising: Place the sample container containing the sample to be tested into the placement hole; The other end of the capillary is inserted into the sample container, and the sample to be tested is introduced into the mass spectrometer body through the capillary for detection.

9. The method as described in claim 8, characterized in that, Also includes: Before placing the sample container containing the sample to be tested into the placement hole, rotate the placement plate to a horizontal position; as well as, After placing the sample container containing the sample to be tested into the placement hole, rotate the fixing plate to a horizontal position.

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