Sample introduction device of mass spectrometer and mass spectrometer

Abstract

The utility model discloses a sample introduction device of a mass spectrometer and the mass spectrometer, the sample introduction device of the mass spectrometer comprises a workbench (4), an XYZ three-axis transmission mechanism, a test tube rack (5) and a gripper (9), the X-axis, Y-axis and Z-axis transmission mechanism comprises an X-direction transmission mechanism (2), a Y-direction transmission mechanism (6), a Z-direction transmission mechanism (1) and a fixing piece. A plurality of insertion holes for insertion of test tubes are formed in the test tube rack; the fixing piece is fixed to the workbench and used for supporting the X-direction transmission mechanism. The X-direction transmission mechanism is installed on the top of the fixing piece and can move in the X direction relative to the fixing piece. The Z-direction transmission mechanism is arranged on the X-direction transmission mechanism and can move in the Z direction relative to the X-direction transmission mechanism. The gripper is arranged at the bottom of the Z-direction transmission mechanism, is positioned above the test tube rack and is used for gripping the test tubes. The sample introduction device of the mass spectrometer and the mass spectrometer are compact in structure and can realize automatic sample introduction.

Description

Technical Field

[0001] The utility model relates to a sample injection device of a mass spectrometer and the mass spectrometer. Background Art

[0002] A mass spectrometer is an instrument that performs mass spectrometry on the object being measured. It is an instrument that uses the motion characteristics of ions in a sample in an electric field and a magnetic field for analysis. It can determine the composition and structure of a sample by analyzing the mass and relative abundance of different ions in the sample.

[0003] When working, ordinary mass spectrometers need to use a sampler to draw liquid into the interior of the test tube. The sampler is mostly single and fixed, and cannot sample multiple test tubes, or requires manual intervention. As a result, when sampling, the user needs to place the test tubes one by one on the placement plate, and cannot sample multiple test tubes, thus affecting the normal use of the user.

[0004] A Chinese patent with publication number CN 116417327 A discloses an automatic sample injector and a sample injection method for a mass spectrometer. The solution can realize movement in three directions, X, Y, and Z, but it is realized through mechanisms such as cylinders and electric telescopic rods, and the cost is relatively high.

[0005] Therefore, it is necessary to design a novel sample injection device and a mass spectrometer. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a sample injection device of a mass spectrometer and a mass spectrometer. The sample injection device of the mass spectrometer and the mass spectrometer have novel structures, have a transmission mechanism in three directions of XYZ, and can realize automatic sample injection.

[0007] The technical solution of the utility model is as follows:

[0008] A sample introduction device for a mass spectrometer, comprising a workbench, an XYZ three-axis transmission mechanism, a test tube rack and a gripper;

[0009] The XYZ three-axis transmission mechanism includes an X-direction transmission mechanism, a Y-direction transmission mechanism, a Z-direction transmission mechanism and a fixing member;

[0010] The Y-direction transmission mechanism is arranged on the workbench, and the test tube rack is installed on the Y-direction transmission mechanism. The Y-direction transmission mechanism is used to drive the test tube rack to translate along the Y-direction relative to the workbench; the test tube rack is provided with a plurality of sockets for inserting test tubes;

[0011] The fixing part is fixed on the workbench and is used to support the X-direction transmission mechanism; the X-direction transmission mechanism is installed on the top of the fixing part and can move along the X-direction relative to the fixing part; the Z-direction transmission mechanism is arranged on the X-direction transmission mechanism and can move along the Z-direction relative to the X-direction transmission mechanism; the gripper is arranged at the bottom of the Z-direction transmission mechanism, and the gripper is located above the test tube rack and is used to grab the test tube.

[0012] The Z-direction transmission mechanism is a screw transmission mechanism driven by a first motor, and the X-direction transmission mechanism is a synchronous belt transmission mechanism driven by a second motor.

[0013] It also includes a controller; the X-direction transmission mechanism, the Y-direction transmission mechanism, the Z-direction transmission mechanism and the gripper are all controlled by the controller.

[0014] The sockets in the test tube rack are arranged in a square array.

[0015] There are 30 jacks, arranged in five rows and six columns.

[0016] It includes a base plate and a sample injection device; the sample injection device is connected to the base plate through a plurality of support columns; the sample injection device is the aforementioned sample injection device.

[0017] Beneficial effects:

[0018] The sample injection device of the mass spectrometer and the mass spectrometer of the utility model can realize free sampling in XYZ directions, match 30 test tube positions, and realize the function of sampling multiple test tubes. Under the control of a controller (such as a DSP or a single-chip microcomputer, etc.), automatic sampling can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the sample injection device of the mass spectrometer and the overall structure of the mass spectrometer;

[0020] Figure 2 It is a schematic diagram of the structure of the sample injection device of the mass spectrometer;

[0021] Figure 3 It is a schematic diagram of the internal structure of the transmission mechanism in the X and Z directions;

[0022] Figure 4 yes Figure 3 A partial enlarged view of .

[0023] Explanation of reference numerals: 1. Z-direction transmission mechanism; 2. X-direction transmission mechanism; 3. Fixing member; 4. Workbench; 5. Test tube rack; 6. Y-direction transmission mechanism; 7. Support column; 8. Bottom plate; 9-gripper; 10-gas phase analysis module; 11-thermal cracking module. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0025] Example 1: Figure 1-4 , a sample introduction device for a mass spectrometer, comprising a workbench 4, an XYZ three-axis transmission mechanism, a test tube rack 5 and a gripper 9;

[0026] The XYZ three-axis transmission mechanism includes an X-direction transmission mechanism 2, a Y-direction transmission mechanism 6, a Z-direction transmission mechanism 1 and a fixing member;

[0027] The Y-direction transmission mechanism is arranged on the workbench, and the test tube rack is installed on the Y-direction transmission mechanism. The Y-direction transmission mechanism is used to drive the test tube rack to translate along the Y-direction relative to the workbench; the test tube rack is provided with a plurality of sockets for inserting test tubes;

[0028] The fixing part is fixed on the workbench and is used to support the X-direction transmission mechanism; the X-direction transmission mechanism is installed on the top of the fixing part and can move along the X-direction relative to the fixing part; the Z-direction transmission mechanism is arranged on the X-direction transmission mechanism and can move along the Z-direction relative to the X-direction transmission mechanism; the gripper is arranged at the bottom of the Z-direction transmission mechanism, and the gripper is located above the test tube rack and is used to grab the test tube.

[0029] The Z-direction transmission mechanism is a screw transmission mechanism driven by a first motor, and the X-direction transmission mechanism is a synchronous belt transmission mechanism driven by a second motor.

[0030] It also includes a controller; the X-direction transmission mechanism, the Y-direction transmission mechanism, the Z-direction transmission mechanism and the gripper are all controlled by the controller.

[0031] The sockets in the test tube rack are arranged in a square array. Specifically, there are 30 sockets arranged in five rows and six columns.

[0032] A mass spectrometer comprises a base plate 8 and a sample injection device; the sample injection device is connected to the base plate via a plurality of support columns 7.

[0033] The main structural parts of the sample introduction mechanism are fixed on the work surface, wherein the Y-direction transmission mechanism 6 is directly fixed on the work surface, and the controller can control the motor transmission to drive the test tube rack 5 to move linearly along the Y-axis direction.

[0034] The X-direction transmission mechanism 2 fixed on the fixing member 3 can drive the Z-direction transmission mechanism and the intelligent gripper to move linearly along the X-direction.

[0035] The Z-direction transmission mechanism is equipped with an intelligent mechanical gripper. Driven by the Z-direction transmission mechanism, the intelligent gripper can perform vertical lifting motion along the Z direction.

[0036] With the cooperation of the above three movement directions, the gripper 9 can freely grab any test tube on the test tube rack 5 .

[0037] This mechanism is also equipped with supporting columns and a base plate, on which the injector can be placed on the work surface, the detection module of the mass spectrometer can be placed directly below the table, and related testing equipment can also be placed on both sides. For example, a cracking module (an existing mature module) can be placed on the left side of the base plate, and a gas phase analysis module (an existing mature module) can be placed on the right side.

[0038] Any modifications, equivalent substitutions and improvements made within the spirit and principles of this utility model should be included in the protection scope of this utility model.

Claims

1. A sample injection device for a mass spectrometer, characterized in that: It comprises a workbench (4), an XYZ three-axis transmission mechanism, a test tube rack (5) and a gripper (9); The XYZ three-axis transmission mechanism comprises an X-direction transmission mechanism (2), a Y-direction transmission mechanism (6), a Z-direction transmission mechanism (1) and a fixing member; The Y-direction transmission mechanism is arranged on the workbench, and the test tube rack is installed on the Y-direction transmission mechanism. The Y-direction transmission mechanism is used to drive the test tube rack to translate along the Y-direction relative to the workbench; the test tube rack is provided with a plurality of sockets for inserting test tubes; The fixing part is fixed on the workbench and is used to support the X-direction transmission mechanism; the X-direction transmission mechanism is installed on the top of the fixing part and can move along the X-direction relative to the fixing part; the Z-direction transmission mechanism is arranged on the X-direction transmission mechanism and can move along the Z-direction relative to the X-direction transmission mechanism; the gripper is arranged at the bottom of the Z-direction transmission mechanism, and the gripper is located above the test tube rack and is used to grab the test tube.

2. The sample injection device of the mass spectrometer according to claim 1, characterized in that: The Z-direction transmission mechanism is a screw transmission mechanism driven by a first motor, and the X-direction transmission mechanism is a synchronous belt transmission mechanism driven by a second motor.

3. The sample injection device of the mass spectrometer according to claim 1, characterized in that: It also includes a controller; the X-direction transmission mechanism, the Y-direction transmission mechanism, the Z-direction transmission mechanism and the gripper are all controlled by the controller.

4. The sample injection device of a mass spectrometer according to any one of claims 1 to 3, characterized in that: The sockets in the test tube rack are arranged in a square array.

5. The sample injection device of the mass spectrometer according to claim 1, characterized in that: There are 30 jacks, arranged in five rows and six columns.

6. A mass spectrometer, characterized in that It comprises a base plate (8) and a sampling device; the sampling device is connected to the base plate via a plurality of support columns (7); the sampling device is the sampling device according to any one of claims 1 to 5.

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