CN214260776U - Solid phase extraction device and multi-needle solid phase extraction device thereof - Google Patents
Solid phase extraction device and multi-needle solid phase extraction device thereof Download PDFInfo
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- CN214260776U CN214260776U CN202120186070.6U CN202120186070U CN214260776U CN 214260776 U CN214260776 U CN 214260776U CN 202120186070 U CN202120186070 U CN 202120186070U CN 214260776 U CN214260776 U CN 214260776U
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- solid phase
- phase extraction
- plate body
- nipple
- hole
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- 238000002414 normal-phase solid-phase extraction Methods 0.000 title claims abstract description 70
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 210000002445 nipple Anatomy 0.000 claims abstract description 32
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 7
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 7
- 241001330002 Bambuseae Species 0.000 claims description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 7
- 239000011425 bamboo Substances 0.000 claims description 7
- 239000010902 straw Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract description 32
- 238000000034 method Methods 0.000 abstract description 12
- 239000000284 extract Substances 0.000 description 14
- 239000000243 solution Substances 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 239000012466 permeate Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000005213 imbibition Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 206010024769 Local reaction Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000273 veterinary drug Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a solid phase extraction device and a multi-needle solid phase extraction device thereof, which comprises an injector, a suction pipe and a solid phase extraction column, wherein the side wall of an empty cylinder of the injector close to the nipple is provided with a through hole communicated with the suction pipe, the area of the through hole is larger than the area of an inner hole of the nipple, the through hole is connected with a first one-way valve which can lead liquid to enter the injector, and the injector is connected with the solid phase extraction column; the utility model discloses in set up the through-hole of feed liquor near syringe nipple position, and the area of through-hole is greater than the mode of nipple's hole area, reaches the purpose that increases extraction efficiency through the area of increase inlet, has avoided setting up the inlet in nipple position, leads to inlet area undersize, the problem that feed liquor efficiency is not high, simultaneously, the inside liquid stream light of syringe has been saved to the setting of first check valve, needs the process of manual liquid feeding, has further improved extraction efficiency.
Description
Technical Field
The patent of the utility model relates to an analytical chemistry technical field especially relates to a solid phase extraction device and many needles solid phase extraction device thereof.
Background
At present, in the solid-phase extraction of veterinary drug residues in water, a solid-phase extraction column is generally connected below an empty syringe, an extraction solution to be extracted is added, liquid can pass through the solid-phase extraction column without pressure at the beginning of an experiment, the liquid outflow speed is slowed along with the blockage of impurities, an experimenter needs to install a syringe piston handle, slowly pushes the handle to move downwards, extracts the injection handle after the liquid in the syringe runs out, then adds the extraction solution to be extracted, and performs reciprocating operation, if 200ml-1000ml of liquid solid-phase extraction is completed, the experimenter needs to repeat for 4-20 times for each sample, the labor capacity is obviously increased under the condition of a large number of samples, the experiment efficiency is reduced, the experiment cost is increased, meanwhile, liquid inlets of the extraction solution to be extracted are arranged at the nipple part of the syringe in the prior art, the entering amount of the extraction solution to be extracted, the extraction efficiency of the extract liquid to be extracted is reduced because the extraction device can only be adapted to the size of the inner diameter of the nipple, for example, in a pressurized solid phase extraction device with the publication number of CN104225958A and a manual solid phase extraction device with the publication number of CN105344131A, the problem that the extraction efficiency is not high because a liquid inlet of the extract liquid to be extracted is arranged at the nipple part or liquid is added manually exists. Therefore, in order to solve the above problems, the present invention provides a solid phase extraction device and a multi-needle solid phase extraction device, which are used to set the inlet of the extract liquid on the side wall of the empty tube near the nipple of the injector, to solve the problem of low extraction efficiency of the conventional extraction device.
Disclosure of Invention
The utility model aims at providing a solid phase extraction device and many needles solid phase extraction device thereof reaches the purpose that improves extraction efficiency.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a solid phase extraction device, including syringe, straw and solid phase extraction post, the syringe be close to on the empty section of thick bamboo lateral wall of nipple position seted up with the through-hole of straw intercommunication, the area of through-hole is greater than nipple's hole area, the through-hole is connected with the first check valve that can make liquid enter into in the syringe, the syringe with the solid phase extraction post is connected.
Preferably, a second one-way valve is connected to the nipple of the syringe, and the second one-way valve enables liquid to enter the solid phase extraction column.
Preferably, the end of the suction pipe is fitted with a filtering tip.
The utility model provides a many needles solid phase extraction device, includes first plate body and second plate body, first plate body with install the spring between the second plate body, the screw rod that pushes down is installed at first plate body top, and is a plurality of the piston tip of syringe is embedded into the lower surface of first plate body, it is a plurality of the empty section of thick bamboo of syringe runs through to be installed on the second plate body, and is a plurality of the syringe with correspond the solid phase extraction column junction.
Preferably, the lower end of the second plate body is provided with a third plate body, and the plurality of solid-phase extraction columns are arranged on the third plate body.
Preferably, a rotating disc type handle is installed at the top of the pressing screw rod.
Preferably, the connection part of the nipple of the injector and the solid phase extraction column is sleeved with a sealing ring.
Preferably, the pressing screw is installed at the middle of the first plate body.
Preferably, the piston ends of a plurality of said syringes are arranged on said first plate at equal intervals.
The utility model discloses for prior art gain following technological effect:
1. the utility model discloses in set up the through-hole of feed liquor near syringe nipple position, and the area of through-hole is greater than the mode of nipple's hole area, reaches the purpose that increases extraction efficiency through the area of increase inlet, has avoided setting up the inlet in nipple position, leads to inlet area undersize, the problem that feed liquor efficiency is not high, simultaneously, the inside liquid stream light of syringe has been saved to the setting of first check valve, needs the process of manual liquid feeding, has further improved extraction efficiency.
2. The utility model discloses be connected with the second check valve on the nipple of notes injector, the second check valve can make liquid enter into the solid phase extraction post, treat that the extract enters into empty section of thick bamboo when inside from the through-hole, the second check valve is closed, make and treat that the extract can not permeate and enter into solid phase extraction device, guaranteed that all treat the extract be in the circulation state when the extraction, be in the closure state during the imbibition, avoided treating in the middle of the meeting of extract permeates the solid phase extraction post through the nipple, lead to not carrying out the partial liquid of pressurization and extract, the not good problem of extraction effect.
3. The utility model discloses in install the spring between first plate body and the second plate body, the screw rod is installed down at first plate body top, the piston tip of a plurality of syringes is embedded into the lower surface of first plate body, the empty section of thick bamboo of a plurality of syringes runs through and installs on the second plate body, a plurality of syringes and corresponding solid phase extraction column connection, the downward promotion process of accomplishing a plurality of syringe pistons simultaneously through the downward pressure screw rod of exerting pressure, and accomplish the suction liquid process of a plurality of syringe handles simultaneously through the elasticity of spring, the process of carrying out the solid phase extraction simultaneously to each sample has been realized, convenient labour saving and time saving, extraction efficiency has been increased substantially.
4. The utility model discloses well push down the screw rod and install the middle part at first plate body, because be spring coupling between first plate body and the second plate body, therefore, the even deformation of spring can be guaranteed to the push down screw rod that sets up at first plate body middle part when pushing down, the decline that the piston of every syringe can be even promptly, guarantee the feed liquor of every syringe simultaneously, avoided push down the screw rod to set up the position and leaned on limit side position, the spring that leads to each tip when pushing down warp inequality, the feed liquor degree of every syringe is different, the syringe can not get the problem of feed liquor even a bit.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
FIG. 1 is a schematic structural diagram of a solid phase extraction apparatus;
FIG. 2 is a schematic structural diagram of a multi-needle solid phase extraction apparatus;
wherein, 1, an injector; 2. a solid phase extraction column; 3. a straw; 4. a nipple; 5. a seal ring; 6. a second one-way valve; 7. a first check valve; 8. a piston; 9. a liquid storage tank; 10. a liquid inlet tank; 11. an empty cartridge; 12. a filter type suction head; 13. a rotating disc type handle; 14. pressing the screw rod downwards; 15. a first plate body; 16. a spring; 17. a second plate body; 18. a third plate body.
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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a solid phase extraction device and many needles solid phase extraction device thereof reaches the purpose that improves extraction efficiency.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, a solid phase extraction device, comprising an injector 1, a suction tube 3 and a solid phase extraction column 2, wherein the side wall of an empty cylinder 11 near the nipple 4 of the injector 1 is provided with a through hole communicated with the suction tube 3, the area of the through hole is larger than the inner hole area of the nipple 4, the through hole is connected with a first one-way valve 7 which can make liquid enter into the injector 1, the injector 1 is connected with the solid phase extraction column 2, the utility model discloses a through hole for liquid inlet is provided near the nipple 4 of the injector 1, and the area of the through hole is larger than the inner hole area of the nipple 4, the purpose of increasing the extraction efficiency is achieved by increasing the area of the liquid inlet, the problem that the liquid inlet is arranged at the nipple 4 position, which causes the area of the liquid inlet to be too small, the liquid inlet efficiency is solved, meanwhile, the liquid flow inside the injector 1 is saved by the arrangement of the first one-way valve 7, and the process of manual liquid adding is needed, further improving the extraction efficiency.
Refer to fig. 1, be connected with second check valve 6 on the nipple 4 of syringe 1, second check valve 6 can make liquid enter into solid phase extraction post 2, treat that the extraction liquid enters into empty section of thick bamboo 11 when inside from the through-hole, second check valve 6 is closed, make and treat that the extraction liquid can not permeate and enter into solid phase extraction device, guaranteed that all treat the extraction liquid be in the circulation state when the extraction, be in the closure state during the imbibition, avoided treating in the meeting of extraction liquid permeate solid phase extraction post 2 through nipple 4, lead to not carrying out the partial liquid of pressurization and extract, the not good problem of extraction effect.
Referring to fig. 1, the end of the suction pipe 3 is provided with a filtering type suction head 12, which can primarily filter and remove large particle impurities in the extraction liquid to be extracted, thereby avoiding the problem that the large particle impurities block the suction pipe 3 and affect the subsequent extraction process.
Referring to fig. 1-2, a many needles solid phase extraction device, including first plate body 15 and second plate body 17, install spring 16 between first plate body 15 and the second plate body 17, push down screw 14 is installed at first plate body 15 top, the lower surface of first plate body 15 is embedded into to the 8 tip of the piston of a plurality of syringes 1, the empty section of thick bamboo 11 of a plurality of syringes 1 runs through and installs on second plate body 17, a plurality of syringes 1 with correspond solid phase extraction post 2 and be connected, accomplish the downward promotion process of a plurality of syringes 1 piston 8 simultaneously through pushing down screw 14 downward application pressure, and accomplish the suction liquid process of a plurality of syringes 1 handle simultaneously through spring 16's elasticity, the process of carrying out solid phase extraction simultaneously to each sample has been realized, and is convenient and saves time and labor, has improved extraction efficiency by a wide margin.
Referring to fig. 1-2, the third plate body 18 is installed to the second plate body 17 lower extreme, and a plurality of solid phase extraction post 2 are installed on the third plate body 18, and a plurality of solid phase extraction post 2 are unified fixed mounting on the third plate body 18, when a plurality of pistons 8 are unified to push down, and a plurality of solid phase extraction post 2 can carry out the extraction process simultaneously, and because the fixed action of third plate body 18, skew can not take place for a plurality of solid phase extraction device, has guaranteed that a plurality of extraction posts are stable while extracting.
Referring to fig. 1-2, the top of the pressing screw 14 is provided with a rotating disc type handle 13, and the pressing screw 14 can be pressed down by rotating the rotating disc type handle, so that the operation is simple and convenient, and the problems that the pressing screw 14 is difficult to press down and is inconvenient to operate due to a direct pressing mode are solved.
Referring to fig. 1-2, the connection part of the nipple 4 of the injector 1 and the solid-phase extraction column 2 is sleeved with a sealing ring 5, which further seals the connection part of the injector 1 and the solid-phase extraction column 2, and avoids the problem that the nipple 4 is easily blocked because external impurities enter the extract liquid to cause the increase of the impurities in the extract liquid.
Referring to fig. 1-2, the push-down screw is installed in the middle of first plate 15, because first plate 15 is connected for spring 16 with second plate 17 between, consequently, the push-down screw that sets up in the middle of first plate 15 can guarantee spring 16's even deformation when pushing down, the decline that the piston 8 of every syringe 1 can be even promptly, guarantee the feed liquor of every syringe 1 simultaneously, avoided push-down screw to set up the position and leaned on the side position, lead to the spring 16 of each tip to warp unevenly when pushing down, the feed liquor degree of every syringe 1 is different, the problem of feed liquor can not be got to some syringes 1 even.
Referring to fig. 1-2, the ends of the pistons 8 of the plurality of syringes 1 are equidistantly arranged on the first plate 15, and when an operator presses down the first plate 15, the ends of the pistons 8 of the syringes 1 are uniformly arranged on the first plate 15, so that the reaction force of the ends of the pistons 8 of the syringes 1 acting on the first plate 15 is uniformly distributed, that is, the operator can press down the first plate 15 more laborsavingly, thereby avoiding the problem that the local reaction force on the first plate 15 is too large and the first plate 15 is difficult to press down due to the fact that the ends of the pistons 8 of the syringes 1 are concentrated on one position.
The utility model discloses an implementation as follows:
firstly, downward pressure is applied to a first plate body 15 through a downward pressing screw 14, the first plate body 15 and a second plate body 17 are compressed through a spring 16, the downward pushing process of a plurality of syringes 1 is driven at the same time, then, a second one-way valve 6 is closed, the downward pressing screw 14 is loosened, the first plate body 15 moves upwards under the elastic force of the spring 16 restoring deformation, a first one-way valve 7 is opened under the negative pressure action of an empty cylinder 11, extract liquor to be extracted in a liquor inlet groove 10 enters the empty cylinder 11 through a suction pipe 3, the liquid sucking process of the syringes 1 is completed at the same time, finally, the second one-way valve 6 is opened, the extract liquor enters a solid phase extraction column 2 for extraction, and the process of performing solid phase extraction on each sample at the same time is realized.
The adaptability that carries out according to actual demand all is in the protection scope of the utility model.
It should be noted that, as is obvious to a person skilled in the art, the invention is not limited to details of the above-described exemplary embodiments, but can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides a solid phase extraction device, its characterized in that, includes syringe, straw and solid phase extraction post, the syringe be close to empty section of thick bamboo lateral wall of nipple position on seted up with the through-hole of straw intercommunication, the area of through-hole is greater than the hole area of nipple, the through-hole is connected with the first check valve that can make liquid enter into in the syringe, the syringe with the solid phase extraction post is connected.
2. The solid phase extraction apparatus of claim 1, wherein a second one-way valve is attached to the syringe nipple, said second one-way valve allowing fluid to enter the solid phase extraction column.
3. A solid phase extraction apparatus according to claim 2 wherein the end of the suction tube is fitted with a filter tip.
4. A multi-needle solid phase extraction device, characterized in that, the device of any one of claims 1-3 is applied, comprising a first plate body and a second plate body, a spring is installed between the first plate body and the second plate body, a pressing screw is installed on the top of the first plate body, the end of a piston of a plurality of injectors is embedded into the lower surface of the first plate body, a plurality of empty cylinders of the injectors are installed on the second plate body in a penetrating way, and the injectors are connected with corresponding solid phase extraction columns.
5. The multi-needle solid phase extraction device of claim 4, wherein a third plate is mounted at the lower end of the second plate, and a plurality of solid phase extraction columns are mounted on the third plate.
6. The multi-needle solid phase extraction device of claim 4, wherein a rotating disc type handle is installed on the top of the downward-pressing screw.
7. The multi-needle solid phase extraction device of claim 6, wherein a sealing ring is sleeved on the connection part of the nipple of the injector and the solid phase extraction column.
8. The multi-needle solid phase extraction device of claim 6, wherein the down-pressure screw is installed in the middle of the first plate.
9. A multi-needle solid phase extraction device as claimed in claim 7, wherein the piston ends of a plurality of said syringes are arranged on said first plate at equal intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120186070.6U CN214260776U (en) | 2021-01-25 | 2021-01-25 | Solid phase extraction device and multi-needle solid phase extraction device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120186070.6U CN214260776U (en) | 2021-01-25 | 2021-01-25 | Solid phase extraction device and multi-needle solid phase extraction device thereof |
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| Publication Number | Publication Date |
|---|---|
| CN214260776U true CN214260776U (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120186070.6U Expired - Fee Related CN214260776U (en) | 2021-01-25 | 2021-01-25 | Solid phase extraction device and multi-needle solid phase extraction device thereof |
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| Country | Link |
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| CN (1) | CN214260776U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113862140A (en) * | 2021-09-27 | 2021-12-31 | 广东省科学院健康医学研究所 | Portable liquid drop digital PCR device |
-
2021
- 2021-01-25 CN CN202120186070.6U patent/CN214260776U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113862140A (en) * | 2021-09-27 | 2021-12-31 | 广东省科学院健康医学研究所 | Portable liquid drop digital PCR device |
| CN113862140B (en) * | 2021-09-27 | 2024-04-09 | 广东省科学院健康医学研究所 | Portable liquid drop digital PCR device |
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Granted publication date: 20210924 |