CN212731139U

CN212731139U - A solid-phase extraction device for food detects

Info

Publication number: CN212731139U
Application number: CN202021411804.8U
Authority: CN
Inventors: 尚光志; 吴敏; 张洋; 檀艳萍
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2021-03-19
Anticipated expiration: 2030-07-17

Abstract

The utility model discloses a solid phase extraction device for food detection, comprises a workbench, the curb plate of the vertical setting of fixedly connected with on the workstation, the first mounting of fixedly connected with on the curb plate, the extraction post of the vertical setting of fixedly connected with on the first mounting, extraction post bottom intercommunication has suction mechanism, suction mechanism bottom has first rubber tube and second rubber tube through the three way connection intercommunication, first rubber tube other end intercommunication has the first receiving flask that is located on the workstation, second rubber tube other end intercommunication has the second receiving flask that is located on the workstation. The utility model discloses a set up aspiration pump and communicating pipe and can realize that the extraction bottom is in negative pressure state and pumps the extraction post, and then can make extract and leacheate to pass through the extraction post fast, and then can accelerate the process improvement extraction efficiency of extraction.

Description

A solid-phase extraction device for food detects

Technical Field

The utility model belongs to the technical field of food detection, especially, relate to a solid-phase extraction device for food detects.

Background

The solid phase extraction is a sample pretreatment technology developed in recent years, the technology is developed by combining a liquid-solid extraction technology and a column liquid chromatography technology, and the recovery rate of an analyte can be improved by separating, purifying and concentrating a sample through four steps of activation, loading, leaching and elution, so that the analyte and an interference component are separated more effectively, and the technology is widely applied to the field of food detection.

However, the extraction efficiency is low in the current solid phase extraction process, and the process is divided into four steps of activation, sample loading, leaching and elution, so that the collection device needs to be continuously replaced in the actual operation process to realize the classified collection of the collected waste liquid and the eluent, but the extraction process needs to be suspended in the replacement process, and the replacement steps are complicated, so that the extraction working efficiency is seriously influenced.

Therefore, we propose a solid phase extraction device for food detection to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem, and providing a solid phase extraction device for food detection with high extraction efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a solid phase extraction device for food detects, includes the workstation, the curb plate of the vertical setting of fixedly connected with on the workstation, the first mounting of fixedly connected with on the curb plate, the extraction post of the vertical setting of fixedly connected with on the first mounting, extraction post bottom intercommunication has suction mechanism, suction mechanism bottom has first rubber tube and second rubber tube through the three way connection intercommunication, first rubber tube other end intercommunication has the first receiving flask that is located the workstation, second rubber tube other end intercommunication has the second receiving flask that is located the workstation.

Preferably, the suction mechanism comprises a communicating pipe and an air suction pump, the communicating pipe is obliquely arranged and fixedly connected to the side plate, and the air suction pump is fixedly connected to the workbench.

Preferably, a communication port is arranged on the side wall of the communication pipe above the suction pump, and the communication port is communicated with the suction pump through a pipeline.

Preferably, the first fixing member is composed of a fixing ring, a fixing block and a threaded rod.

Preferably, solid fixed ring and curb plate fixed connection, the threaded rod run through the solid fixed ring lateral wall and with solid fixed ring lateral wall threaded connection, the threaded rod is located solid fixed ring inside one end and is connected with the fixed block rotation.

Preferably, first rubber tube and second rubber tube are respectively through first rubber buffer, second rubber buffer respectively with first receiving flask and second receiving flask intercommunication setting.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the extraction column can be sucked by the extraction bottom end in a negative pressure state through the arrangement of the air suction pump and the communicating pipe, so that the extraction liquid and the leacheate can quickly pass through the extraction column, the extraction process can be accelerated, and the extraction efficiency can be improved;

2. the arrangement of the first collecting bottle and mechanisms such as the collecting bottle can realize the quick replacement of the flow direction position of the liquid after passing through the extraction column in the extraction process, so that the flow direction positions of the waste liquid and the eluent can be quickly replaced in the extraction process, and the waste liquid and the eluent can be respectively classified and collected without suspending the extraction;

3. through setting up first rubber buffer, second rubber buffer respectively through first rubber buffer, second rubber buffer respectively with first receiving flask and second receiving flask intercommunication setting, and then ensure that first rubber buffer, second rubber buffer department can not leak gas, and then ensure that the device has better suction effect to the extraction post.

Drawings

Fig. 1 is a schematic view of the overall structure of a solid phase extraction device for food detection according to the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

fig. 3 is an enlarged schematic view of the structure at B in fig. 1.

In the figure: 1 workstation, 2 curb plates, 3 first mounting, 4 extraction posts, 5 suction mechanism, 6 first rubber tubes, 7 second rubber tubes, 8 first receiving flask, 9 second receiving flasks, 10 communicating pipes, 11 aspiration pump, 12 solid fixed ring, 13 fixed block, 14 threaded rods, 15 intercommunication mouths.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a solid phase extraction device for food detection comprises a workbench 1, a vertically arranged side plate 2 fixedly connected to the workbench 1, a first fixing member 3 fixedly connected to the side plate 2, and a vertically arranged extraction column 4 fixedly connected to the first fixing member 3.

As shown in fig. 2, the first fixing member 3 is composed of a fixing ring 12, a fixing block 13, and a threaded rod 14.

Gu fixed ring 12 and 2 fixed connection of curb plate, threaded rod 14 run through solid fixed ring 12 lateral walls and with solid fixed ring 12 lateral wall threaded connection, threaded rod 14 is located solid fixed ring 12 inside one end and is rotated with fixed block 13 and be connected, fixed block 13 keeps away from the one end of threaded rod 14 and can improve the fixed effect of the garrulous jade extraction post 4 of fixed block 13 for the rubber material, threaded rod 14 is located the outside one end fixedly connected with adjust knob of solid fixed ring 12.

The extraction column 4 is located in the fixing ring 12 and fixed between the side wall of the fixing ring 12 and the fixing block 13.

Can drive threaded rod 14 rotation with it fixed connection through rotating adjusting knob, threaded rod 14 rotates and will take place relative displacement with the solid fixed ring 12 of fixed setting, and threaded rod 14 will drive fixed block 13 and remove, and then realizes that fixed block 13 fixes and releases extraction post 4, and then is convenient for change the material in the extraction post 4 or wash extraction post 4.

The bottom end of the extraction column 4 is communicated with a suction mechanism 5, the suction mechanism 5 is composed of a communicating pipe 10 and an air suction pump 11, the communicating pipe 10 is obliquely arranged and fixedly connected on the side plate 2, and the air suction pump 11 is AY561 in type and fixedly connected on the workbench 1.

As shown in fig. 3, a communication port 15 is provided in an upper side wall of the communication pipe 10, and the communication port 15 is provided in communication with the suction pump 11 through a pipe.

Communicating pipe 10 top and the setting of extraction 4 bottoms intercommunication of post, communicating pipe 10 bottom is passed through the three way connection intercommunication and is had first rubber tube 6 and second rubber tube 7, and 6 other end intercommunications of first rubber tube have and are located the first receiving flask 8 on workstation 1, and 7 other end intercommunications of second rubber tube have the second receiving flask 9 that is located workstation 1.

The first rubber tube 6 and the second rubber tube 7 are respectively provided with a first spring clamp and a second spring clamp.

First rubber tube 6 and second rubber tube 7 set up with first receiving flask 8 and 9 intercommunications of second receiving flask respectively through first rubber buffer, second rubber buffer respectively, and then ensure that first rubber tube 6 and first receiving flask 8, second rubber tube 7 and 9 intercommunications of second receiving flask can not leak gas, and then ensured that the device has better suction effect to extraction post 4.

Now, the operation principle of the present invention is described as follows:

the utility model discloses in, when the extraction goes on, at first open first spring clamp, close the second spring clamp, then add the extraction post 4 with the activator from extraction post 4 tops, control aspiration pump 11 begins work, again because aspiration pump 11 and the 15 intercommunication settings of intercommunication mouth, aspiration pump 11 will aspirate extraction post 4, then enter into the liquid in communicating pipe 10 and will flow and follow the 10 bottoms of communicating pipe along communicating pipe 10 downside wall, enter into first receiving flask 8 through first rubber tube 6 at last.

And then, the extraction column 4 is continuously subjected to sample loading and leaching, waste liquid generated in the three steps of activation, sample loading and leaching flows into the first collection bottle 8, when elution is carried out, the second spring clamp is opened, the first spring clamp is closed, and the eluent flows into the second collection bottle 9 from the second rubber tube 7 so as to be convenient for subsequent treatment.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a solid-phase extraction device for food detects, includes workstation (1), its characterized in that, curb plate (2) of the vertical setting of fixedly connected with on workstation (1), the first mounting (3) of fixedly connected with on curb plate (2), extraction post (4) of the vertical setting of fixedly connected with on first mounting (3), extraction post (4) bottom intercommunication has suction mechanism (5), suction mechanism (5) bottom has first rubber tube (6) and second rubber tube (7) through the three way connection intercommunication, first rubber tube (6) other end intercommunication has first receiving flask (8) that are located workstation (1), second rubber tube (7) other end intercommunication has second receiving flask (9) that are located workstation (1).

2. The solid phase extraction device for food detection according to claim 1, wherein the suction mechanism (5) comprises a communicating pipe (10) and a suction pump (11), the communicating pipe (10) is obliquely arranged and fixedly connected to the side plate (2), and the suction pump (11) is fixedly connected to the workbench (1).

3. The solid phase extraction device for food detection according to claim 2, wherein the upper side wall of the communicating pipe (10) is provided with a communicating port (15), and the communicating port (15) is communicated with the air suction pump (11) through a pipeline.

4. The solid phase extraction device for food detection according to claim 1, characterized in that the first fixing member (3) is composed of a fixing ring (12), a fixing block (13) and a threaded rod (14).

5. The solid phase extraction device for food detection according to claim 4, wherein the fixing ring (12) is fixedly connected with the side plate (2), the threaded rod (14) penetrates through the side wall of the fixing ring (12) and is in threaded connection with the side wall of the fixing ring (12), and one end of the threaded rod (14) located inside the fixing ring (12) is rotatably connected with the fixing block (13).

6. The solid-phase extraction device for food detection according to claim 1, wherein the first rubber tube (6) and the second rubber tube (7) are respectively communicated with the first collection bottle (8) and the second collection bottle (9) through a first rubber plug and a second rubber plug.