Veterinary drug residue detection and purification device

Abstract

The utility model discloses a veterinary drug residue detection and purification device which comprises a drug loading tube, one end of the charging pipe is a charging end, a first purification part is arranged on the inner side of the other end, and a second purification part is arranged on the outer side of the other end of the charging pipe; the first purification part is located at the medicine inlet end of the second purification part, and the second purification part is detachably connected to the other end of the medicine containing pipe. The first purification part provided by the utility model is used for decoloring and removing impurities of Chinese herbal medicines; the second purification part is used for removing grease and protein in the Chinese herbal medicine, purification and filtration integration is achieved, the problem that the purification effect of an existing purification device on the Chinese herbal medicine containing animal origin is not good due to the fact that the water content is low and the grease content is high is solved, meanwhile, purification and filtration integrated arrangement of the device is achieved, and the purification effect is good. The processes of uniform mixing and centrifugation in the prior art are reduced, and the problem that when an existing purification device treats Chinese herbal medicine containing animal origin, purification can be completed only by centrifuging the Chinese herbal medicine in a centrifugal tube for several hours, and consequently the purification efficiency is low is solved.

Description

Technical Field

[0001] The present application relates to a purification device for veterinary drug residue detection, belonging to the technical field of Chinese herbal medicine detection. Background Art

[0002] The artificial breeding of animal-derived Chinese herbal medicines has gradually become large-scale. In the breeding process, it is inevitable to use relevant antibiotics such as quinolones and macrolides to improve the survival rate and yield of animals. However, the abuse of antibiotics will have toxic and side effects, and in severe cases, it will also affect the human immune system and cause public health hazards. Therefore, it is necessary to use detection means to monitor and control the veterinary drug residues in animal-derived Chinese herbal medicines. The detection process is generally crushing - extraction - purification - instrument detection. Among them, the purification process is an important step that determines whether the instrument detection data is accurate. The current purification methods all refer to the methods of animal-derived foods and use the centrifugal tube (QuEChERS) method for purification, and successively carry out steps such as weighing, extraction, purification, and filtration. It has strong universality, but this method generally only removes and purifies water, pigments, and impurities. For animal-derived Chinese herbal medicines, due to the low water content and high oil content, the purification effect is not very good. Moreover, when dealing with animal-derived Chinese herbal medicines, it takes several hours to centrifuge in a centrifuge tube to complete the purification, resulting in low purification efficiency. Summary of the Utility Model

[0003] According to one aspect of the present application, a purification device for veterinary drug residue detection is provided to solve the problem that in the existing purification technology, when purifying animal-derived Chinese herbal medicines, due to the low water content and high oil content of animal-derived Chinese herbal medicines, the purification effect is not very good. The specific solution is as follows:

[0004] A purification device for veterinary drug residue detection, comprising: a medicine loading tube;

[0005] One end of the medicine loading tube is the medicine inlet end, and a first purification part is arranged on the inner side of the other end of the medicine loading tube, and a second purification part is arranged on the outer side of the other end of the medicine loading tube;

[0006] The first purification part is located at the medicine inlet end of the second purification part, and the first purification part is used for decolorizing and removing impurities of Chinese herbal medicines;

[0007] The second purification part is detachably connected to the other end of the medicine loading tube, and the second purification part is used for removing oils and proteins from Chinese herbal medicines.

[0008] Preferably, a medicine pushing component is arranged in the medicine loading tube;

[0009] The medicine pushing component includes a push rod and a piston;

[0010] The piston is placed inside the medicine loading tube. The piston is placed above the first purification part, and a medicine inlet is provided on the piston.

[0011] The medicine delivery tube is connected to the medicine inlet.

[0012] One end of the push-pull rod is connected to the piston, and the other end of the push-pull rod extends out of the medicine inlet end of the medicine loading tube. The push-pull rod drives the piston to reciprocate along the axial direction of the medicine loading tube.

[0013] Preferably, a one-way valve is provided at the medicine inlet.

[0014] The one-way valve is installed at the medicine inlet to prevent the liquid medicine in the medicine loading tube from flowing back into the medicine delivery tube.

[0015] Preferably, the first purification part is an activated carbon purification block.

[0016] Preferably, the second purification part includes a housing, and a first sieve plate, a grease and protein removal layer, and a second sieve plate are sequentially arranged inside the housing along the direction from the medicine inlet end to the medicine outlet end;

[0017] The first sieve plate is close to the side at the medicine inlet end.

[0018] Preferably, the grease and protein removal layer is an activated clay filling layer.

[0019] The beneficial effects that can be produced by this application include:

[0020] The first purification part provided by this application performs decolorization and impurity removal of Chinese herbal medicines; the second purification part can be used to remove grease and protein in Chinese herbal medicines, thereby realizing the integration of purification and filtration, avoiding the problem that the existing purification device has a poor purification effect on Chinese herbal medicines containing animal origin due to low water content and high grease, and at the same time, the purification and filtration of this device are integrated, reducing the mixing and centrifugation processes in the existing technology, and avoiding the problem that the existing purification device needs to be centrifuged in a centrifuge tube for several hours to complete purification when treating Chinese herbal medicines containing animal origin, resulting in low purification efficiency. Description of the Drawings

[0021] Figure 1 It is the front view of a veterinary drug residue detection and purification device of this application;

[0022] Figure 2 It is the top view of a veterinary drug residue detection and purification device of this application.

[0023] List of components and reference numerals:

[0024] 1. Medicine loading tube; 2. Push rod; 3. Piston; 4. First purification part; 5. First sieve plate; 6. Grease and protein removal layer; 7. Second sieve plate; 8. Medicine delivery tube. Detailed implementation mode

[0025] The present application will be described in detail below with reference to the embodiments, but the present application is not limited to these embodiments.

[0026] According to an Figure 1-2 Shown veterinary drug residue detection and purification device, comprising: a medicine loading tube 1, a medicine pushing component and a first purification part 4 arranged in the medicine loading tube 1, and a second purification part arranged outside the medicine loading tube 1, forming a purification device similar to a syringe.

[0027] One end of the medicine loading tube 1 is the medicine inlet end, and the other end of the medicine loading tube 1 is the medicine outlet end. The second purification part is detachably connected to the other end (medicine outlet end) of the medicine loading tube 1.

[0028] The first purification part 4 is an activated carbon purification block filled in the inner side of the other end of the back of the medicine loading tube 1. The activated carbon purification block is fixed on the inner side near the medicine outlet end of the medicine loading tube 1. The activated carbon particles adsorb the sugars in the liquid medicine to decolorize and remove impurities from the liquid medicine.

[0029] The medicine pushing component is located on the side of the first purification part 4 facing the medicine inlet end of the medicine loading tube 1. The medicine pushing component includes a push rod 2 and a piston 3.

[0030] The piston 3 is placed in the medicine loading tube 1. The piston 3 is placed above the first purification part 4. The piston 3 is slidably connected to the inner side of the medicine loading tube 1 and moves along the axial direction of the medicine loading tube 1. A sealing ring is arranged between the piston 3 and the medicine loading tube 1. The sealing ring is sleeved on the piston 3. The piston 3 and the medicine loading tube 1 are hermetically connected through the sealing ring. The piston 3 is provided with a medicine inlet.

[0031] The medicine delivery tube 8 is connected to the medicine inlet. The liquid medicine to be purified is conveyed to the space between the piston 3 and the first purification part 4 through the medicine delivery tube 8.

[0032] One end of the push rod 2 is connected to the piston 3. The other end of the push rod 2 extends out of the medicine inlet end of the medicine loading tube 1. The push rod 2 drives the piston 3 to move along the axial direction of the medicine loading tube 1. The liquid medicine placed between the piston 3 and the first purification part 4 is pressed into the first purification part 4 and the second purification part in sequence by pressing the push rod 2 to purify the liquid medicine.

[0033] In the present application, the length of the push rod 2 is greater than the length of the medicine loading tube 1, and the gap between the push rod 2 and the medicine loading tube 1 is greater than the outer diameter of the medicine delivery tube 8.

[0034] The second purification part is detachably connected to the other end of the medicine loading tube 1, and the second purification part is used to remove grease and protein from Chinese herbal medicines. The detachable connection between the second purification part and the medicine loading tube 1 is achieved through internal and external threads. Specifically: the end of the medicine loading tube 1 connected to the second purification part is provided with external threads;

[0035] The medicine inlet end of the second purification part is provided with internal threads matching the external threads, and the second purification part is threadedly connected to the medicine loading tube 1.

[0036] Sealing rings are provided at the internal and external threads, and the sealing rings respectively abut against the internal and external threads to prevent the liquid medicine from leaking out from the connection.

[0037] In order to prevent the liquid medicine between the piston 3 and the first purification part 4 from flowing back into the medicine delivery tube 8 when the push-pull rod 2 pushes the piston 3 towards the second purification part, a one-way valve is provided at the medicine inlet of this application;

[0038] The one-way valve is installed at the medicine inlet to prevent the liquid medicine in the medicine loading tube 1 from flowing back into the medicine delivery tube 9.

[0039] The one-way valve is open in the direction from the medicine delivery tube 8 to the piston 3 and closed in the direction from the piston 3 to the medicine delivery tube 8.

[0040] The second purification part includes a housing, and a first sieve plate 5, a grease and protein removal layer 6, and a second sieve plate 7 are sequentially arranged in the housing along the direction from the medicine inlet end to the medicine outlet end;

[0041] In an embodiment of this application, the end of the housing facing the first purification part 4 is the medicine inlet end of the second purification part, and the end of the housing facing away from the first purification part 4 is the medicine outlet end of the second purification part;

[0042] The first sieve plate 5 is close to the side located at the medicine inlet end.

[0043] Further, the grease and protein removal layer 6 is an activated clay filling layer;

[0044] The first sieve plate 5 and the second sieve plate 7 are respectively fixedly connected in the housing, and the activated clay filling layer is placed between the first sieve plate 5 and the second sieve plate 7.

[0045] The usage process of this device is as follows:

[0046] First, pull out the push rod 2 towards the medicine inlet end of the medicine filling tube 1, and convey the liquid medicine to the space between the piston 3 and the first purification part 4 through the medicine conveying tube 8; then push the push rod 2 towards the first purification part 4 to press the piston 3 towards the first purification part 4, so that the liquid medicine placed between the piston 3 and the first purification part 4 successively passes through the first purification part 4 (activated carbon part), the first sieve plate 5, the activated clay filling layer and the second sieve plate 7, and flows out from the medicine outlet end of the second purification part, thus completing the purification of the liquid medicine.

[0047] It should be noted that:

[0048] In this application, the sieve holes of the first sieve plate 5 are smaller than the gaps between the activated carbon particles, and the sieve holes of the second sieve plate 7 are smaller than those of the first sieve plate 5, so as to filter impurities with different particle sizes in sequence.

[0049] The purification materials selected in this application are activated carbon and activated clay, and the selected purification materials are simple and low-cost.

[0050] Moreover, the second purification part is detachably connected to the medicine filling tube 1, so as to realize whether to connect the second purification part according to the purification requirements, which improves the flexibility of the application;

[0051] At the same time, in this application, the purification and filtration are integrated, reducing the processes of mixing and centrifugation in the prior art, thereby improving the working efficiency.

[0052] As described above, the above are only several embodiments of this application, and do not impose any form of limitation on this application. Although this application is disclosed above with preferred embodiments, it is not intended to limit this application. Any person skilled in the art, without departing from the scope of the technical solution of this application, makes some changes or modifications using the technical content disclosed above, which are all equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A purification device for veterinary drug residue detection, characterized in that, Comprising: A charge tube; One end of the charge tube is the medicine inlet end, and a first purification part is arranged inside the other end of the charge tube, and a second purification part is arranged outside the other end of the charge tube; The first purification part is located at the medicine inlet end of the second purification part, and the first purification part is used for decoloring and impurity removal of Chinese herbal medicines; The second purification part is detachably connected to the other end of the charge tube, and the second purification part is used for removing grease and protein in Chinese herbal medicines; A medicine pushing assembly is arranged inside the charge tube; The medicine pushing assembly includes a push rod and a piston; The piston is placed inside the charge tube, the piston is placed above the first purification part, and a medicine inlet is arranged on the piston; A medicine delivery tube is connected to the medicine inlet; One end of the push rod is connected to the piston, and the other end of the push rod extends out of the medicine inlet end of the charge tube, and the push rod drives the piston to reciprocate along the axial direction of the charge tube.

2. The veterinary drug residue detection and purification device according to claim 1, wherein A one-way valve is arranged at the medicine inlet; The one-way valve is installed at the medicine inlet to prevent the liquid medicine in the charge tube from flowing back into the medicine delivery tube.

3. A veterinary drug residue detection and purification device according to claim 1, characterized in that, The first purification part is an activated carbon purification block.

4. A veterinary drug residue detection and purification device according to claim 1, characterized in that, The second purification part includes a housing, and a first sieve plate, a grease and protein removal layer, and a second sieve plate are sequentially arranged inside the housing along the direction from the medicine inlet end to the medicine outlet end; The first sieve plate is close to the side at the medicine inlet end.

5. A veterinary drug residue detection and purification device according to claim 1, characterized in that, The grease and protein removal layer is an activated clay filling layer.

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