CN221286955U - Solid phase extraction device for food detection - Google Patents
Solid phase extraction device for food detection Download PDFInfo
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- CN221286955U CN221286955U CN202323314735.5U CN202323314735U CN221286955U CN 221286955 U CN221286955 U CN 221286955U CN 202323314735 U CN202323314735 U CN 202323314735U CN 221286955 U CN221286955 U CN 221286955U
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- extraction
- precipitation
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- liquid inlet
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- 238000002414 normal-phase solid-phase extraction Methods 0.000 title claims description 27
- 238000001514 detection method Methods 0.000 title claims description 15
- 239000007788 liquid Substances 0.000 claims description 60
- 238000000605 extraction Methods 0.000 claims description 57
- 238000001556 precipitation Methods 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 8
- 238000001802 infusion Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 description 4
- 239000000284 extract Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009246 food effect Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
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- Extraction Or Liquid Replacement (AREA)
Abstract
The utility model discloses a solid-phase extraction device for food detection, and particularly relates to the technical field of solid-phase extraction, which comprises a bracket, wherein two symmetrically distributed vertical plates are arranged in the bracket, extraction columns and precipitation bottles which are distributed up and down are arranged between the two vertical plates, the tops of the precipitation bottles are communicated with the bottoms of the extraction columns, liquid collecting bottles are arranged at the tops of the extraction columns and the bottoms of the precipitation bottles and are used for collecting extracted food samples, and liquid inlet pipes are fixedly penetrated at one sides of the two liquid collecting bottles, which are close to each other. According to the utility model, the extraction column and the precipitation bottle are used for carrying out primary solid-phase extraction on the food sample, then the two control valves are closed, the four first bolts are loosened, the two liquid inlet pipes are respectively pulled out from the two liquid delivery pipes, the vertical plate is rotated to enable the liquid inlet pipes on the two liquid collection bottles to be respectively connected with the two liquid delivery pipes, and the food sample is subjected to multiple solid-phase extraction according to the operation steps, so that the solid-phase extraction effect of the food sample is improved, the structure is simple, and the operation is very convenient.
Description
Technical Field
The utility model relates to the technical field of solid phase extraction, in particular to a solid phase extraction device for food detection.
Background
In the process of detecting food, it is often necessary to extract the components in the food, and the solid phase extraction technology is usually used to process the food sample, and the solid phase extraction is a physical extraction process including a liquid phase and a solid phase. However, it is often difficult to extract completely in one extraction, and it is often necessary to recycle the extraction, and the existing method of using an extraction column needs to pour the solution into another beaker and then pour the solution into the extraction column, which is easy to pollute the sample due to manual operation and has low efficiency.
In order to improve the working efficiency of a solid phase extraction device for food detection, the prior art publication No. CN219614942U is a solid phase extraction device for food detection, and the piston cylinder arranged at the top of an extraction column can repeatedly pull a push rod in the extraction process, so that the extraction liquid extracted into a liquid collection bottle is fully purified continuously by utilizing the action of a piston plate and the negative pressure effect.
However, the above prior art has the following problems when in use: when the extraction liquid is pumped, the length of the piston cylinder needs to be set long, so that enough suction force can be used for pumping all the extraction liquid into the piston cylinder, and the longer piston cylinder occupies very much space and is inconvenient to operate.
Disclosure of utility model
In order to overcome the defects in the prior art, the utility model provides a solid-phase extraction device for food detection, which is used for carrying out primary solid-phase extraction on a food sample through an extraction column and a precipitation bottle, simultaneously rotating two vertical plates to switch two liquid collecting bottles, respectively connecting liquid inlet pipes on the two liquid collecting bottles with two liquid conveying pipes, and carrying out solid-phase extraction on the food sample for multiple times, so that the solid-phase extraction effect of the food sample is improved, and the problems in the background art are solved.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a solid-phase extraction device for food detection, which comprises a bracket, the inside riser that is equipped with two symmetric distributions of support, be equipped with extraction post and the precipitation bottle that distributes from top to bottom between two risers, and separate out the bottle top and be linked together with extraction post bottom, extraction post top and precipitation bottle bottom all are equipped with the liquid collecting bottle for collect the food sample that extracts, two liquid collecting bottles all are close to one side each other and are fixed the feed liquor pipe that runs through, and two feed liquor pipe inside has all pegged graft the transfer line, and two transfer lines are fixed respectively on extraction post top and separate out the bottle bottom, and two transfer lines are linked together with extraction post and separate out the inside of bottle respectively, and two liquid collecting bottle outer wall all fixed cover is equipped with the pinion rack, the slider is all fixed in the pinion rack both sides, two risers all have been seted up to one side inner wall each other, the slider is established in the spout.
In a preferred embodiment, control valves are fixedly arranged on the two liquid inlet pipes, so that workers can conveniently control the opening and closing of the liquid inlet pipes.
In a preferred embodiment, the top of the inner walls of two sides of the support are respectively fixed with a cylinder, two vertical plates are respectively sleeved on the two cylinders, the vertical plates are rotationally connected with the cylinders, one ends of the two cylinders, which are close to each other, are respectively fixedly provided with a mounting block, and the mounting blocks are fixed with the extraction column and the precipitation bottle and are used for supporting the extraction column and the precipitation bottle.
In a preferred embodiment, the inner walls of the two liquid inlet pipes are embedded with sealing rings, the inner walls of the sealing rings are in contact with the outer wall of the liquid inlet pipe, and the sealing rings are matched with the sealing grooves, so that the tightness between the liquid inlet pipe and the liquid inlet pipe is greatly improved.
In a preferred embodiment, two riser outer walls are all threaded connection has two first bolts that distribute from top to bottom, four first bolt one end respectively with four slider outer wall contacts for fixed slider, extraction post rear end is fixed to run through has the liquid feeding pipe, and the liquid feeding pipe is linked together with extraction post inside, the staff of being convenient for adds the food sample to extraction post inside.
In a preferred embodiment, the outer walls of the two sides of the support are respectively connected with a second bolt in a threaded mode, one ends of the two second bolts are respectively contacted with the outer walls of the two risers, the risers are fixed through the second bolts, and the risers are prevented from shaking.
In a preferred embodiment, the top of the extraction column is in threaded connection with a cover plate, a hollow tube is arranged inside the extraction column, and a plurality of filter cores are arranged inside the hollow tube and used for filtering food samples.
The utility model has the technical effects and advantages that:
According to the utility model, the extraction column and the precipitation bottle are used for carrying out primary solid-phase extraction on the food sample, then the two control valves are closed, the four first bolts are loosened, the two liquid inlet pipes are respectively pulled out from the two liquid delivery pipes, the vertical plate is rotated to enable the liquid inlet pipes on the two liquid collection bottles to be respectively connected with the two liquid delivery pipes, and the food sample is subjected to multiple solid-phase extraction according to the operation steps, so that the solid-phase extraction effect of the food sample is improved, the structure is simple, and the operation is very convenient.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a front view of the overall structure of the present utility model;
FIG. 3 is a block diagram of two collector bottles, extraction columns and extraction bottles of the present utility model;
FIG. 4 is a cross-sectional view of an extraction column of the present utility model;
fig. 5 is a bottom view of the overall structure of the present utility model.
The reference numerals are: 1. a bracket; 2. a riser; 3. an extraction column; 4. separating out a bottle; 5. a liquid collecting bottle; 6. a liquid inlet pipe; 7. an infusion tube; 8. a ring plate; 9. a slide block; 10. a chute; 11. a control valve; 12. a cylinder; 13. a mounting block; 14. a seal ring; 15. a first bolt; 16. a liquid adding tube; 17. a second bolt; 18. a cover plate; 19. a hollow tube; 20. a filter element.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5 of the specification, the utility model provides a solid-phase extraction device for food detection, which comprises a bracket 1, wherein two symmetrically distributed vertical plates 2 are arranged in the bracket 1, the tops of the inner walls of two sides of the bracket 1 are respectively fixed with a cylinder 12, the two vertical plates 2 are respectively sleeved on the two cylinders 12, the vertical plates 2 are rotationally connected with the cylinders 12, extraction columns 3 and precipitation bottles 4 which are distributed up and down are arranged between the two vertical plates 2, the tops of the precipitation bottles 4 are communicated with the bottoms of the extraction columns 3, the tops of the extraction columns 3 are in threaded connection with a cover plate 18, hollow tubes 19 are arranged in the extraction columns 3, and a plurality of filter cores 20 are arranged in the hollow tubes 19 and are used for filtering food samples;
The two cylinders 12 are fixedly provided with mounting blocks 13 at one ends close to each other, the mounting blocks 13 are fixed with the extraction column 3 and the precipitation bottle 4 and used for supporting the extraction column 3 and the precipitation bottle 4, the rear end of the extraction column 3 is fixedly penetrated with a liquid adding pipe 16, and the liquid adding pipe 16 is communicated with the interior of the extraction column 3, so that food samples can be conveniently added into the extraction column 3;
Next, the top of the extraction column 3 and the bottom of the precipitation bottle 4 are respectively provided with a liquid collecting bottle 5 for collecting extracted food samples, one sides of the two liquid collecting bottles 5, which are close to each other, are respectively fixedly penetrated with a liquid inlet pipe 6, the two liquid inlet pipes 6 are respectively fixedly provided with a control valve 11 for controlling the opening and closing of the liquid inlet pipes 6, the inside of the two liquid inlet pipes 6 is respectively inserted with a transfusion pipe 7, the two transfusion pipes 7 are respectively fixed at the top end of the extraction column 3 and the bottom end of the precipitation bottle 4, and the two transfusion pipes 7 are respectively communicated with the inside of the extraction column 3 and the precipitation bottle 4;
In order to facilitate the adjustment of the positions of the two liquid collecting bottles 5, annular plates 8 are fixedly sleeved on the outer walls of the two liquid collecting bottles 5, sliding blocks 9 are fixedly arranged on two sides of each annular plate 8, sliding grooves 10 are formed in the inner walls of one sides, which are close to each other, of the two vertical plates 2, the sliding blocks 9 are arranged in the sliding grooves 10, the outer walls of the two vertical plates 2 are respectively connected with two first bolts 15 which are distributed up and down in a threaded manner, one ends of the four first bolts 15 are respectively contacted with the outer walls of the four sliding blocks 9, and the sliding blocks 9 are firmly fixed by virtue of the first bolts 15 and the sliding blocks 9 so as to avoid shaking of the liquid collecting bottles 5;
For conveniently fixing the riser 2, the outer walls at two sides of the bracket 1 are respectively and spirally connected with a second bolt 17, one ends of the two second bolts 17 are respectively contacted with the outer walls of the two risers 2, the risers 2 can be firmly fixed by means of the contact of the second bolts 17 and the outer walls of the risers 2, the risers 2 are prevented from shaking, and the use of the two liquid collecting bottles 5 is affected.
During the use, the staff adds the food sample to extraction column 3 inside through liquid feeding pipe 16, after the food sample is through extraction column 3 and precipitation bottle 4 solid phase extraction, the food sample that extracts flows to the liquid collecting bottle 5 below the precipitation bottle 4, when the inside food sample of liquid collecting bottle 5 reaches a certain amount, the staff closes the control valve 11 on the feed liquor pipe 6 below the precipitation bottle 4 earlier, then unclamp four first bolts 15 in proper order, extract two feed liquor pipes 6 respectively from two transfer lines 7 in the back, unclamp two second bolts 17 again, rotate two riser 2 and adjust the position of two liquid collecting bottle 5 after, insert two feed liquor pipes 6 respectively in proper order again in two transfer lines 7 inside, afterwards open the control valve 11 on the feed liquor pipe 6 above the extraction column 3, make the extraction food sample carry out solid phase extraction again, thereby improve the solid phase extraction effect of food sample, the structure is simple, it is very convenient to operate.
Referring to fig. 3 of the specification, sealing rings 14 are embedded in the inner walls of the two liquid inlet pipes 6, and the inner walls of the sealing rings 14 are in contact with the outer wall of the liquid inlet pipe 7, so that the tightness between the liquid inlet pipe 6 and the liquid inlet pipe 7 is improved.
Finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (7)
1. A solid phase extraction device for food detection, includes support (1), its characterized in that: two symmetrically distributed vertical plates (2) are arranged in the support (1), extraction columns (3) and precipitation bottles (4) which are distributed up and down are arranged between the two vertical plates (2), the tops of the precipitation bottles (4) are communicated with the bottoms of the extraction columns (3), and liquid collecting bottles (5) are arranged at the tops of the extraction columns (3) and the bottoms of the precipitation bottles (4) and used for collecting extracted food samples;
Two liquid collecting bottles (5) are fixedly penetrated by a liquid inlet pipe (6) at one side close to each other, infusion pipes (7) are inserted into the two liquid inlet pipes (6), the two infusion pipes (7) are respectively fixed at the top end of the extraction column (3) and the bottom end of the precipitation bottle (4), and the two infusion pipes (7) are respectively communicated with the interiors of the extraction column (3) and the precipitation bottle (4);
The outer walls of the two liquid collecting bottles (5) are fixedly sleeved with annular plates (8), sliding blocks (9) are fixedly arranged on two sides of each annular plate (8), sliding grooves (10) are formed in the inner walls of one sides, close to each other, of the two vertical plates (2), and the sliding blocks (9) are arranged in the sliding grooves (10).
2. The solid phase extraction device for food detection according to claim 1, wherein: control valves (11) are fixedly arranged on the two liquid inlet pipes (6) and are used for controlling the opening and closing of the liquid inlet pipes (6).
3. The solid phase extraction device for food detection according to claim 1, wherein: the utility model discloses a support, including support (1), extraction column (3), precipitation bottle (4), cylinder (12) are all fixed with at support (1) both sides inner wall top, and two risers (2) overlap respectively and establish on two cylinders (12), and riser (2) rotate with cylinder (12) to be connected, and two cylinders (12) are close to one end each other and all are fixed and are equipped with installation piece (13), installation piece (13) are fixed with extraction column (3) and precipitation bottle (4) for support extraction column (3) and precipitation bottle (4).
4. The solid phase extraction device for food detection according to claim 1, wherein: the inner walls of the two liquid inlet pipes (6) are embedded with sealing rings (14), and the inner walls of the sealing rings (14) are in contact with the outer wall of the liquid inlet pipe (7) and are used for improving the tightness between the liquid inlet pipes (6) and the liquid inlet pipe (7).
5. The solid phase extraction device for food detection according to claim 1, wherein: the equal threaded connection of two riser (2) outer walls has two first bolts (15) of upper and lower distribution, four first bolt (15) one end respectively with four slider (9) outer wall contact for fixed slider (9), extraction post (3) rear end is fixed to be run through and is had liquid feeding pipe (16), and liquid feeding pipe (16) are linked together with extraction post (3) inside, are convenient for add food sample to extraction post (3) inside.
6. The solid phase extraction device for food detection according to claim 1, wherein: the outer walls of two sides of the support (1) are respectively connected with a second bolt (17) in a threaded mode, and one ends of the two second bolts (17) are respectively contacted with the outer walls of the two vertical plates (2) and used for fixing the vertical plates (2).
7. The solid phase extraction device for food detection according to claim 1, wherein: the top threaded connection of extraction post (3) has apron (18), extraction post (3) inside is equipped with hollow tube (19), hollow tube (19) inside is equipped with a plurality of filter cores (20) for filtering the food sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323314735.5U CN221286955U (en) | 2023-12-06 | 2023-12-06 | Solid phase extraction device for food detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323314735.5U CN221286955U (en) | 2023-12-06 | 2023-12-06 | Solid phase extraction device for food detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221286955U true CN221286955U (en) | 2024-07-09 |
Family
ID=91740114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323314735.5U Active CN221286955U (en) | 2023-12-06 | 2023-12-06 | Solid phase extraction device for food detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221286955U (en) |
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2023
- 2023-12-06 CN CN202323314735.5U patent/CN221286955U/en active Active
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