Tandem liquid chromatography-mass spectrometer for detecting diazepam residues in aquatic products

Abstract

The utility model discloses a tandem liquid chromatography-mass spectrometer for detecting diazepam residues in aquatic products, which comprises a device main body and a convenient insertion mechanism, and a detection component is mounted at one end of the device main body; the convenient inserting mechanism is arranged in the device body and used for classified taking and placing and comprises an inserting block, the lower end of the inserting block is connected with a positioning block, and the upper end of the inserting block is connected with a framed bent. According to the tandem liquid chromatography-mass spectrometer for detecting diazepam residues in the aquatic products, by installing a convenient-to-insert mechanism in the device main body, the effects that a whole row of test tubes can be conveniently and rapidly taken and placed, classification is convenient, and the bottom is easy to clean are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tandem liquid spectrometry instruments, in particular to a tandem liquid spectrometry instrument for detecting diazepam residues in aquatic products. Background Art

[0002] Diazepam residues in aquatic products are a significant food safety concern. Diazepam, also known as "valium," is an organic compound belonging to the sedative class of drugs. In aquaculture, its use can reduce the sensitivity of fresh, live fish to the outside world, slowing their metabolism and thereby increasing their growth rate. Furthermore, its use in aquatic transport can calm fish and reduce their stress response to external influences, thereby ensuring their freshness during transportation. Consuming foods containing diazepam can cause symptoms such as fatigue, drowsiness, motor dysfunction, and mental confusion, and can even lead to serious consequences such as coma and cardiac arrhythmias. Diazepam poses a significant potential threat to children's growth and development. Detection using tandem liquid chromatography-mass spectrometry (LC-MS / MS) combines the high separation power of liquid chromatography with the high sensitivity and specificity of mass spectrometry, making it ideal for the detection of trace substances in complex matrices.

[0003] When using a tandem liquid spectrometer for detecting diazepam residues in aquatic products, test tubes need to be placed and taken out individually, which is time-consuming and easy to cause the test tubes to slip and fall when being taken out. In order to improve the heat dissipation efficiency, support legs are generally added to the bottom of the instrument to keep it at a certain distance from the ground to facilitate heat dissipation. However, this causes some items in the laboratory to fall and roll to the bottom of the instrument, which is too large to be moved. At the same time, dust easily accumulates on the bottom of the instrument over time, making it difficult to lift and clean. Utility Model Content

[0004] The utility model aims to solve the deficiencies in the prior art and provides a tandem liquid spectrometer for detecting diazepam residues in aquatic products, which is convenient for quickly taking and placing a whole row of test tubes, convenient for classification, and easy to clean the bottom.

[0005] In order to solve the problem that the test tubes need to be placed and taken out individually during the detection of diazepam residues in aquatic products using the existing tandem liquid spectrometer, which is time-consuming and easy to slip and drop when taking the test tubes, and in order to improve the heat dissipation efficiency, the bottom of the instrument is generally provided with support legs to keep a certain distance from the ground to facilitate heat dissipation. However, this causes some items in the laboratory to fall and roll to the bottom of the instrument, which is too large to be moved. At the same time, dust easily accumulates on the bottom of the instrument over time, making it difficult to lift and clean. The present invention designs a tandem liquid spectrometer for detecting diazepam residues in aquatic products, and the present invention solves the problem through the following technical solutions.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A tandem liquid spectrometry-mass spectrometry instrument for detecting diazepam residues in aquatic products, comprising:

[0008] A device body, one end of which is equipped with a detection component;

[0009] The plug-in mechanism is arranged inside the main body of the device for classified taking and placing. The plug-in mechanism includes an insertion block, the lower end of the insertion block is connected to a positioning block, and the upper end of the insertion block is connected to a rack.

[0010] Preferably, a socket is installed inside the device body, and a test tube rack is inserted into the socket.

[0011] Preferably, a tube groove is provided inside the test tube rack, and a bottom block is installed at the upper end of the tube groove.

[0012] Preferably, a magnetic groove is provided inside the bottom block, and the positioning block fits in the magnetic groove.

[0013] Preferably, a roller is installed at the lower end of the device body, and a base is provided at the lower end of the device body.

[0014] Preferably, both ends of the test tube rack fit into the socket, and the test tube rack is installed in several groups.

[0015] Preferably, the roller is in sliding engagement with the inner wall of the base.

[0016] Preferably, the detection component includes a liquid chromatography column, and a chamber door is inserted into one end of the device body.

[0017] Preferably, one end of the door is slidably fitted with the device body.

[0018] Compared with the prior art, the present invention has the following beneficial effects: a detection component is installed inside the device body, and a liquid chromatography column is used to detect it, thereby measuring the diazepam residue in aquatic products; an insertion mechanism is installed inside the device body, and a bottom block is installed at the upper end of the test tube rack, so that the positioning block at the bottom of the insertion block is magnetically adsorbed in the magnetic suction groove inside the bottom block; after the rack is inserted into the bottom block, a row of test tubes can be quickly taken out and placed, thereby improving the flexibility of detection inside the device body; by installing a roller at the lower end of the device body, the roller is inserted into the base, so that the device body can be easily pulled out to clean its bottom, thereby achieving the effect of quickly taking out and placing a whole row of test tubes, facilitating classification, and easy cleaning of the bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the device of the present utility model;

[0021] Figure 2 This is a schematic diagram of the pipe rack structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the device of the utility model when viewed from above;

[0023] Figure 4 For this utility model Figure 2 A schematic diagram of the structure at center A;

[0024] Explanation of the figure numbers: 1. Device body; 2. Detection component; 21. Liquid chromatography column; 22. Chamber door; 3. Plug-in mechanism; 31. Socket; 32. Test tube rack; 33. Tube slot; 34. Bottom block; 35. Magnetic slot; 36. Insert block; 37. Positioning block; 38. Rack; 39. Base; 308. Roller. DETAILED DESCRIPTION

[0025] The present invention is described in further detail below with reference to the accompanying drawings.

[0026] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0027] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate directions or positions are based on the directions or positional relationships shown in the accompanying drawings, which are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limitations on the present invention.

[0028] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity. Example

[0029] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, a tandem liquid spectrometer for detecting diazepam residues in aquatic products comprises:

[0030] The device body 1 has a detection component 2 installed at one end of the device body 1; by installing the detection component 2 inside the device body 1, the test tube is placed inside the device body 1 after opening the box door 22, and is detected by the liquid chromatography column 21; the plug-in mechanism 3 is arranged inside the device body 1 for classified placement, and the plug-in mechanism 3 includes an insertion block 36, the lower end of the insertion block 36 is connected to the positioning block 37, and the upper end of the insertion block 36 is connected to the rack 38. After the rack 38 is inserted into the bottom block 34, a row of test tubes can be quickly taken out and placed.

[0031] Among them, a socket 31 is installed inside the device body 1, and a test tube rack 32 is inserted into the socket 31. A tube groove 33 is opened inside the test tube rack 32, and a bottom block 34 is installed at the upper end of the tube groove 33. The tube groove 33 is opened at the upper end of the test tube rack 32 so that a test tube can be inserted. The bottom block 34 is installed at the upper end of the test tube rack 32 so that the positioning block 37 at the bottom of the insertion block 36 is magnetically adsorbed in the magnetic suction groove 35 inside the bottom block 34, so that the guided insertion saves alignment time.

[0032] In the device, a magnetic groove 35 is provided inside the bottom block 34, and the positioning block 37 is fitted with the magnetic groove 35. A roller 308 is installed at the lower end of the device body 1, and a base 39 is provided at the lower end of the device body 1. By installing the roller 308 at the lower end of the device body 1, the roller 308 is inserted into the base 39, making it convenient to pull out the device body 1 for cleaning its bottom.

[0033] Preferably, both ends of the test tube rack 32 fit with the socket 31, and the test tube rack 32 is installed in several groups. The roller 308 slides with the inner wall of the base 39, and the roller 308 is inserted into the base 39, so that it is convenient to pull out the device body 1 to clean its bottom. The roller 308 only needs to be pulled halfway and slides tightly with the socket 31 without causing the device to tilt.

[0034] In the device, the detection component 2 includes a liquid chromatography column 21, and a box door 22 is inserted at one end of the device body 1. One end of the box door 22 is slidably fitted with the device body 1. By installing the detection component 2 inside the device body 1, the test tube is placed inside the device body 1 after opening the box door 22, and is tested by the liquid chromatography column 21, thereby measuring the diazepam residue in the aquatic product.

[0035] As can be seen from the above, by installing the detection component 2 inside the device body 1, the test tube is placed inside the device body 1 after opening the box door 22, and it is detected by the liquid chromatography column 21, so as to measure the diazepam residue in the aquatic product, the plug-in mechanism 3 is installed inside the device body 1, and the socket 31 is installed inside the device body 1. After the test tube is inserted into the test tube rack 32, the test tube rack 32 is inserted into the socket 31, so that the test tube is fixed inside the device body 1, and a tube groove 33 is provided at the upper end of the test tube rack 32 so that the test tube is inserted. The bottom block 34 is installed at the upper end of the rack 32, so that the positioning block 37 at the bottom of the insert block 36 is magnetically adsorbed in the magnetic groove 35 inside the bottom block 34. After the rack 38 is inserted into the bottom block 34, a row of test tubes can be quickly taken out and placed, thereby improving the flexibility of internal detection of the device body 1. By installing a roller 308 at the lower end of the device body 1, the roller 308 is inserted into the base 39, so that the device body 1 can be easily pulled out to clean its bottom, thereby achieving the effect of quickly taking out and placing a whole row of test tubes, facilitating classification, and easy cleaning of the bottom.

[0036] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended only as examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles.

Claims

1. A tandem liquid spectrometry-mass spectrometry instrument for detecting diazepam residues in aquatic products, characterized in that: include: A device body (1), wherein a detection component (2) is installed at one end of the device body (1); A toilet plug mechanism (3) is provided inside the device body (1) for classified taking and placing. The toilet plug mechanism (3) comprises an insert block (36), the lower end of the insert block (36) is connected to a positioning block (37), and the upper end of the insert block (36) is connected to a rack (38).

2. The tandem liquid spectrometry-mass spectrometry instrument for detecting diazepam residues in aquatic products according to claim 1, characterized in that: A socket (31) is installed inside the device body (1), and a test tube rack (32) is inserted inside the socket (31).

3. The tandem liquid spectrometry-mass spectrometry instrument for detecting diazepam residues in aquatic products according to claim 2, characterized in that: A tube groove (33) is provided inside the test tube rack (32), and a bottom block (34) is installed at the upper end of the tube groove (33).

4. The tandem liquid spectrometry-mass spectrometry instrument for detecting diazepam residues in aquatic products according to claim 3, characterized in that: A magnetic attraction groove (35) is provided inside the bottom block (34), and the positioning block (37) is fitted with the magnetic attraction groove (35).

5. The tandem liquid spectrometry-mass spectrometry instrument for detecting diazepam residues in aquatic products according to claim 4, characterized in that: A roller (308) is installed at the lower end of the device body (1), and a base (39) is provided at the lower end of the device body (1).

6. The tandem liquid spectrometry-mass spectrometry instrument for detecting diazepam residues in aquatic products according to claim 5, characterized in that: Both ends of the test tube rack (32) fit in contact with the socket (31), and the test tube rack (32) is equipped with several groups.

7. The tandem liquid spectrometry-mass spectrometry instrument for detecting diazepam residues in aquatic products according to claim 6, characterized in that: The roller (308) is in sliding engagement with the inner wall of the base (39).

8. The tandem liquid spectrometry-mass spectrometry instrument for detecting diazepam residues in aquatic products according to claim 7, characterized in that: The detection component (2) includes a liquid chromatography column (21), and a chamber door (22) is inserted into one end of the device body (1).

9. The tandem liquid spectrometry-mass spectrometry instrument for detecting diazepam residues in aquatic products according to claim 8, characterized in that: One end of the box door (22) is slidably fitted with the device body (1).

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