CN217745823U - Solid phase extraction frame and solid phase extraction device - Google Patents
Solid phase extraction frame and solid phase extraction device Download PDFInfo
- Publication number
- CN217745823U CN217745823U CN202221775952.7U CN202221775952U CN217745823U CN 217745823 U CN217745823 U CN 217745823U CN 202221775952 U CN202221775952 U CN 202221775952U CN 217745823 U CN217745823 U CN 217745823U
- Authority
- CN
- China
- Prior art keywords
- solid phase
- phase extraction
- extraction column
- collecting pipe
- bottom plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Extraction Or Liquid Replacement (AREA)
Abstract
The embodiment of the application provides a solid phase extraction frame and solid phase extraction device, wherein, the solid phase extraction frame includes: the top wall of the extraction column fixing frame is provided with a plurality of through ports, and each extraction column connecting pipe is suitable for penetrating through the corresponding port; the collecting pipe fixing frame is arranged in the extracting column fixing frame in a push-pull mode, a plurality of first limiting holes are formed in the collecting pipe fixing frame, each first limiting hole and each interface are correspondingly arranged in the first direction, and each liquid collecting pipe is suitable for penetrating through the corresponding first limiting hole to collect liquid flowing through the extracting column connecting pipe. The technical scheme of this application embodiment can make the collecting pipe mount push-and-pull for the extraction column mount, makes the equipment, dismantlement and the removal of collecting pipe mount more convenient.
Description
Technical Field
The application relates to the technical field of detection and analysis, in particular to a solid-phase extraction rack and a solid-phase extraction device.
Background
In the related art, the solid phase extraction technology has been widely applied to the fields of food, medicine, environment, and the like. Solid Phase Extraction (SPE) is a sample pretreatment technology based on liquid-Solid Phase chromatography theory, and uses a Solid adsorbent to selectively adsorb a target object in a liquid sample, so that the target object is separated from a matrix and an interfering substance of the sample, and then the target compound is eluted by using an eluent or is desorbed by heating, thereby achieving the purpose of separating and enriching the target compound. The technology greatly enhances the detection capability of analytes, particularly trace analytes, and improves the recovery rate of the detected samples. However, the conventional solid phase extraction apparatus has complicated elution operation steps, and requires excessively long preparation time and post-treatment time for elution.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a solid phase extraction frame and a solid phase extraction device, which are used for solving or relieving one or more technical problems in the prior art.
As an aspect of embodiments of the present application, there is provided a solid phase extraction rack including:
the top wall of the extraction column fixing frame is provided with a plurality of through ports, and each extraction column connecting pipe is suitable for penetrating through the corresponding port;
the collecting pipe fixing frame is arranged in the extracting column fixing frame in a push-pull mode, a plurality of first limiting holes are formed in the collecting pipe fixing frame, each first limiting hole and each connector are correspondingly arranged in the first direction, and each liquid collecting pipe is suitable for penetrating through the corresponding first limiting hole so as to collect liquid flowing through the extracting column connecting pipe.
In an embodiment, the extraction column fixing frame comprises a top plate, a first bottom plate and two supporting plates connected between the top plate and the first bottom plate, a plurality of interfaces are formed on the top plate, the two supporting plates are oppositely arranged in the second direction, an accommodating space is defined between the top plate, the first bottom plate and the two supporting plates, the extraction column fixing frame is located in the accommodating space and can be pushed and pulled along the third direction, and the third direction, the second direction and the first direction are pairwise perpendicular.
In one embodiment, one of the first base plate and the collection tube holder is provided with a guide projection, and the other of the first base plate and the collection tube holder is provided with a guide groove, and the guide projection is fitted in the guide groove.
In one embodiment, the collecting pipe fixing frame comprises a second bottom plate, a first net plate and a second net plate which are arranged at intervals along a first direction, a plurality of first limiting holes are formed in the first net plate, the second net plate is located between the first net plate and the second bottom plate, a plurality of second limiting holes which correspond to the first limiting holes in a one-to-one mode are formed in the second net plate, the second bottom plate is in contact with the extracting column fixing frame, the liquid collecting pipes are suitable for being supported on the second bottom plate, and each liquid collecting pipe penetrates through the corresponding second limiting hole and the corresponding first limiting hole respectively.
In one embodiment, the second bottom plate is formed with a plurality of limiting grooves, each limiting groove is arranged corresponding to each second limiting hole, and the bottom of the liquid collecting pipe is suitable for being located in the limiting groove.
In one embodiment, the second base panel, the first mesh panel and the second mesh panel are integrally formed.
In one embodiment, the central axis of each first limiting hole coincides with the central axis of each interface.
In one embodiment, the number of interfaces is N, where 50 ≦ N ≦ 100.
In one embodiment, the extraction column holder is a plastic or metal part; the collecting pipe fixing frame is made of plastic or metal parts.
As another aspect of embodiments herein, there is provided a solid phase extraction apparatus, comprising:
a solid phase extraction rack according to any one of the embodiments of the aspects of the present application;
the extraction column connecting pipes are respectively arranged on the corresponding interfaces in a penetrating way;
the plurality of solid phase extraction columns are respectively connected with the corresponding extraction column connecting pipes;
the liquid collecting pipes are respectively arranged in the corresponding first limiting holes in a penetrating mode;
wherein, the liquid in each solid phase extraction column is suitable for flowing into the corresponding liquid collecting pipe through the corresponding extraction column connecting pipe.
By adopting the technical scheme, the embodiment of the application can push and pull the collecting pipe fixing frame relative to the extraction column fixing frame, so that the collecting pipe fixing frame is more convenient to assemble, disassemble and move.
The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present application will be readily apparent by reference to the drawings and following detailed description.
Drawings
In the drawings, like reference characters designate like or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily to scale. It is appreciated that these drawings depict only some embodiments in accordance with the disclosure and are therefore not to be considered limiting of its scope.
FIG. 1 shows a schematic diagram of a solid phase extraction rack and column connecting tube according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of an extraction column holder and an extraction column connecting tube according to an embodiment of the present application;
FIG. 3 shows a schematic view of a collecting pipe fixing frame according to an embodiment of the present application.
Description of reference numerals:
10: a solid phase extraction rack;
100: an extraction column fixing frame; 110: a top plate; 120: a first base plate; 121: a guide projection; 130: a support plate;
200: a collecting pipe fixing frame; 210: a first limiting hole; 220: a second base plate; 221: a guide groove; 230: a first screen plate; 240: a second screen plate; 241: a second limiting hole;
20: the extraction column is connected with a pipe.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present application. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the related art, the upper cover of the solid phase extraction device needs to be taken down in the elution process, the test tube rack is arranged in the solid phase extraction device, then the collection test tube is placed, and the upper cover is arranged on the solid phase extraction device. In the process, the solvent guide needles below the upper cover are required to be ensured to correspond to the test tubes in sequence, and then the solid-phase extraction columns are placed in sequence for elution. After the elution is completed, the test tube needs to be taken out again, the test tube is put on a special test tube rack again, and finally the solid-phase extraction column is pulled out in sequence. The elution operation steps are complicated, and the efficiency is low. Moreover, the space of the solid phase extraction device is small, and meanwhile, the stability of the solid phase extraction device is poor, so that the test tube can be broken in the placing and moving process. In addition, the maximum elution number of the solid phase extraction device is 24 holes, so that simultaneous elution of a large number of samples cannot be realized, and the use efficiency is low. In addition, the solid phase extraction device is usually made of glass, and has large volume, fragility and higher cost.
Fig. 1 shows a schematic structure of a solid phase extraction rack 10 and an extraction column connection tube 20 according to an embodiment of the present application. As shown in fig. 1, the solid phase extraction rack 10 includes an extraction column holder 100 and a collection tube holder 200.
A plurality of through ports are formed on the top wall of the extraction column fixing frame 100, and each extraction column connecting pipe 20 is adapted to penetrate through the corresponding port. The collecting tube fixing frame 200 is disposed in the extraction column fixing frame 100 in a push-pull manner, a plurality of first limiting holes 210 are formed on the collecting tube fixing frame 200, each first limiting hole 210 and each interface are disposed in a first direction, and each liquid collecting tube is adapted to penetrate through the corresponding first limiting hole 210 to collect the liquid flowing through the extraction column connecting tube 20. In the description of the present application, "a plurality" means two or more.
Illustratively, referring to fig. 1, the first direction may be a vertical direction, the solid phase extraction column may be connected to the extraction column connection tube 20, and the solid phase extraction column is located above the solid phase extraction rack 10. During elution, the collecting tube holder 200 may be pushed into the extraction column holder 100, so that the first limiting hole 210 is opposite to the interface. In this case, liquid in the solid phase extraction column, such as eluent, can vertically enter the liquid collection tube through the extraction column connection tube 20. After the elution is finished, the collecting pipe fixing frame 200 is pulled out from the extraction column fixing frame 100.
According to the solid phase extraction frame 10 of the embodiment of the application, collecting pipe mount 200 and extraction column mount 100 can mutual independence, collecting pipe mount 200 is for extraction column mount 100 push-and-pull, make the equipment of collecting pipe mount 200, it is more convenient to dismantle and remove, can wholly shift out collecting pipe mount 200 and liquid collecting pipe after the elution is accomplished, need not to extract separately and shift each liquid collecting pipe, thereby can effectively shorten when the elution prepares duration of operation and aftertreatment, the operation is simpler, can effectively improve work efficiency, and can avoid smashing liquid collecting pipe, promote the security.
In one embodiment, as shown in fig. 1 and 2, the extraction column holder 100 includes a top plate 110, a first bottom plate 120, and two support plates 130 connected between the top plate 110 and the first bottom plate 120, a plurality of interfaces are formed on the top plate 110, the two support plates 130 are oppositely disposed in a second direction, a receiving space is defined between the top plate 110, the first bottom plate 120, and the two support plates 130, the extraction column holder 100 is located in the receiving space and can be pushed and pulled in a third direction, and the third direction, the second direction, and the first direction are perpendicular to each other.
For example, in the examples of fig. 1 and 2, the second direction and the third direction are both horizontal directions, specifically, the second direction is a left-right direction, and the third direction is a front-rear direction. The first base plate 120 may include four rims, and one of the two support plates 130 is connected between the left edge of the top plate 110 and the left edge of the first base plate 120, and the other of the two support plates 130 is connected between the right edge of the top plate 110 and the right edge of the first base plate 120. The plurality of connectors are disposed at intervals, each connector penetrates the top plate 110 in the thickness direction of the top plate 110, and each extraction column connection pipe 20 is inserted into the corresponding connector. The front and back of the extraction column fixing frame 100 are open, the collecting pipe fixing frame 200 can be pushed into the containing space or pulled out of the containing space through the front and back openings, and an experimenter can observe the elution condition in the front and back direction through the front and back openings. A hollow portion may be formed on each support plate 130, so that an experimenter can observe the elution condition in the left and right directions through the hollow portion.
Therefore, by arranging the top plate 110, the first bottom plate 120 and the two support plates 130, the extraction column fixing frame 100 is simple in structure and low in cost, and the elution condition can be observed conveniently in the third direction while the collection pipe fixing frame 200 is pushed in and pulled out, so that the whole solid-phase extraction frame 10 has strong popularization.
In one embodiment, one of the first base plate 120 and the collection tube holder 200 is provided with a guide projection 121, and the other of the first base plate 120 and the collection tube holder 200 is formed with a guide groove 221, the guide projection 121 being fitted into the guide groove 221. So set up, the cooperation of guide protrusion 121 and guide way 221 can play effectual guide effect to the removal of collecting pipe mount 200 for first bottom plate 120 to avoid collecting pipe mount 200's the direction of movement to produce the skew, make collecting pipe mount 200's removal more stable.
Illustratively, a guide groove 221 recessed downward is formed on the upper surface of the first bottom plate 120, and a guide protrusion 121 is provided on the bottom surface of the collection pipe holder 200; alternatively, the first bottom plate 120 may have a guide protrusion 121 on the upper surface thereof, and the collection tube holder 200 may have a guide groove 221 recessed upward on the bottom surface thereof. The guide protrusion 121 and the guide groove 221 may extend in the third direction. For example, two guide protrusions 121 and two guide grooves 221 may be provided, two guide protrusions 121 may be disposed at intervals along the second direction, and two guide protrusions 121 may be respectively located at two ends of the corresponding first bottom plate 120 or the corresponding collection tube holder 200, so as to further improve the movement stability of the collection tube holder 200.
In one embodiment, referring to fig. 1 and 3, the collecting tube fixing frame 200 includes a second bottom plate 220, a first mesh plate 230 and a second mesh plate 240 arranged at intervals along a first direction, the first mesh plate 230 is formed with a plurality of first position-limiting holes 210, the second mesh plate 240 is located between the first mesh plate 230 and the second bottom plate 220, the second mesh plate 240 is formed with a plurality of second position-limiting holes 241 corresponding to the plurality of first position-limiting holes 210 one to one, the second bottom plate 220 is in contact with the extraction column fixing frame 100, the liquid collecting tubes are adapted to be supported on the second bottom plate 220, and each liquid collecting tube passes through the corresponding second position-limiting hole 241 and the corresponding first position-limiting hole 210.
Illustratively, both ends of the connecting tube 20 may be located at the upper and lower sides of the top plate 110, respectively, and the solid phase extraction column is connected to the top end of the connecting tube 20. The top end orifice of the liquid collecting pipe may be higher than the upper surface of the first mesh plate 230, and the top end orifice of the liquid collecting pipe may be lower than the bottom end of the extraction column connecting pipe 20. The first net panel 230, the second net panel 240, and the second base panel 220 may be connected by a plurality of connecting bars. After elution is complete, first well plate 230, second well plate 240, second bottom plate 220, and plurality of liquid collection tubes can be removed in their entirety.
Therefore, the second limiting hole 241 and the first limiting hole 210 can limit the movement of the liquid collecting pipe in the horizontal direction together, so that the liquid collecting pipe is prevented from shaking in the pushing or pulling process, and the structure of the liquid collecting pipe is more stable.
In one embodiment, a plurality of position-limiting grooves may be formed on the second bottom plate 220, each position-limiting groove is disposed in one-to-one correspondence with each second position-limiting hole 241, and the bottom of the liquid collecting pipe is suitable for being located in the position-limiting groove. Like this, spacing groove, second spacing hole 241 and first spacing hole 210 can set up in the first direction one-to-one, and the bottom of liquid collecting pipe can be injectd to the spacing groove and the removal in the horizontal direction, and the middle part of liquid collecting pipe can be injectd to the spacing hole 241 and the removal in the horizontal direction, and the upper portion that liquid collecting pipe can be injectd to first spacing hole 210 removes in the horizontal direction to can further promote liquid collecting pipe's stability.
In an alternative embodiment, the second bottom panel 220, the first net panel 230, and the second net panel 240 may be integrally formed. So set up, collecting pipe mount 200's simple structure can need not extra spare part and install, can promote collecting pipe mount 200's wholeness to can promote installation and dismantlement efficiency.
In one embodiment, referring to fig. 1, the central axis of each first limiting hole 210 coincides with the central axis of each interface. Therefore, liquid in the solid phase extraction column can vertically enter the liquid collecting pipe along the central axis of the interface through the extraction column connecting pipe 20, and the accuracy of the liquid in the solid phase extraction column entering the liquid collecting pipe is ensured.
In one embodiment, the number of interfaces is N, where 50 ≦ N ≦ 100. For example, N may be 85, and the number of the first limiting holes 210 may be 85, and the number of the second limiting holes 241 may be 85. Therefore, by enabling N to be more than or equal to 50 and less than or equal to 100, the number of the interfaces is relatively large, and compared with the existing solid-phase extraction rack, simultaneous elution of a large number of samples can be realized, and the use efficiency of the solid-phase extraction rack 10 is effectively improved.
In one embodiment, the extraction column holder 100 may be a plastic or metal member; the collection tube holder 200 may be plastic or metal. For example, the material of the extraction column holder 100 and the material of the collection tube holder 200 may be the same, for example, the material of the extraction column holder 100 and the material of the collection tube holder 200 may be both plastic parts, and the material of the extraction column holder 100 and the material of the collection tube holder 200 may be a polyethylene part, a polypropylene part, a polybutylene part, a polyvinyl chloride part, or the like; or, the extraction column holder 100 and the collection tube holder 200 may be made of metal pieces, and at this time, the extraction column holder 100 and the collection tube holder 200 may be made of stainless steel or aluminum alloy. Of course, the material of the extraction column holder 100 may be different from that of the collection tube holder 200.
Therefore, the extraction column fixing frame 100 and the collection pipe fixing frame 200 are made of plastic or metal pieces, so that the extraction column fixing frame 100 and the collection pipe fixing frame 200 are high in structural strength and low in cost, and the application range of the solid-phase extraction frame 10 is favorably widened.
The solid phase extraction device according to the second aspect of the present application comprises a solid phase extraction rack 10, a plurality of extraction column connection tubes 20, a plurality of solid phase extraction columns, and a plurality of liquid collection tubes. The solid-phase extraction rack 10 is the solid-phase extraction rack 10 according to any one of the above-mentioned first embodiments of the present application, each extraction column connecting tube 20 is respectively inserted into a corresponding interface, the plurality of solid-phase extraction columns are respectively connected to the corresponding extraction column connecting tubes 20, and each liquid collecting tube is respectively inserted into a corresponding first limiting hole 210. Wherein the liquid in each solid phase extraction column is adapted to flow through the corresponding extraction column connection tube 20 into the corresponding liquid collection tube.
Illustratively, the extraction column connection tube 20 may include a first connection portion and a second connection portion. The first connecting portion is located on the upper side of the top plate 110, and the solid phase extraction column can be inserted into the first connecting portion. The upper end of the second connecting portion is connected to the first connecting portion, and the lower end of the second connecting portion extends to the lower side of the top plate 110. The first connection portion may have an inner diameter greater than an inner diameter of the second connection portion. The height of the collection tube holder 200 can be adjusted according to the height of the liquid collection tube. The volume of the liquid collection tube may be 10mL, 12mL, 15mL, etc., and the liquid collection tube may be a test tube or a centrifuge tube, but is not limited thereto.
According to the solid phase extraction device of this application embodiment, through adopting foretell solid phase extraction frame 10, need not supporting vacuum pump and bleed the decompression, avoid appearing the function extravagant. Moreover, the solid-phase extraction rack 10 has a simple structure and a reasonable design, and the collecting pipe fixing rack 200 is more convenient to assemble, move and disassemble, so that the detection efficiency is improved.
The following describes in detail the determination of ofloxacin in milk using the solid phase extraction apparatus of the embodiment of the second aspect of the present application.
A plurality of extraction column connecting pipes 20 are respectively placed in a plurality of interfaces on the top plate 110, and the 500mg,6mL solid phase extraction column is connected with the extraction column connecting pipe 20. Then, a plurality of liquid collecting pipes are placed on the collecting pipe fixing frame 200, and the collecting pipe fixing frame 200 and the liquid collecting pipes are integrally pushed into the accommodating space of the extraction column fixing frame 100, so that the pipe orifices of the liquid collecting pipes are opposite to the extraction column connecting pipe 20, and the elution operation is performed. After elution is completed, the plurality of liquid collection tubes filled with liquid such as eluent and the collection tube holder 200 may be removed in their entirety.
According to the provisions of the standard GB/T21312-2007, 25 raw milk sample eluents are collected and measured by the solid phase extraction eluent collection device in the embodiment of the application, and the specific measurement results are as follows:
TABLE 1 determination of quinolones in milk
| Sample numbering | Norfloxacin in milk (ng/g) | RSD(％)，N＝5 |
| 1 | 0.052 | 5.5 |
| 2 | 0.096 | 4.5 |
| 3 | 0.218 | 4.26 |
| 4 | 0.485 | 3.5 |
| 5 | 1.015 | 2.8 |
| Average recovery rate | 97.6％ |
According to the solid phase extraction device of this application embodiment, simple structure, extraction column mount 100 and collecting pipe mount 200 can mutual independence, can wholly shift out liquid collecting pipe and collecting pipe mount 200 after the elution is accomplished, and is easy and simple to handle quick, can promote work efficiency.
In the description of the present specification, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
The above disclosure provides many different embodiments or examples for implementing different structures of the application. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various changes or substitutions within the technical scope of the present application, and these should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A solid phase extraction cartridge, comprising:
the top wall of the extraction column fixing frame is provided with a plurality of through ports, and each extraction column connecting pipe is suitable for penetrating through the corresponding port;
the collecting pipe fixing frame is arranged in the extracting column fixing frame in a push-pull mode, a plurality of first limiting holes are formed in the collecting pipe fixing frame, each first limiting hole and each interface are correspondingly arranged in the first direction, and each liquid collecting pipe is suitable for penetrating through the corresponding first limiting hole so as to collect liquid flowing through the extracting column connecting pipe.
2. The solid phase extraction rack of claim 1, wherein the extraction column holder comprises a top plate, a first bottom plate, and two support plates connected between the top plate and the first bottom plate, the plurality of ports are formed in the top plate, the two support plates are oppositely disposed in a second direction, an accommodation space is defined between the top plate, the first bottom plate, and the two support plates, the extraction column holder is located in the accommodation space and is capable of being pushed and pulled in a third direction, and the third direction, the second direction, and the first direction are perpendicular to each other.
3. The solid phase extraction rack according to claim 2, wherein one of the first bottom plate and the collection tube holder is provided with a guide projection, and the other of the first bottom plate and the collection tube holder is provided with a guide groove, and the guide projection is fitted into the guide groove.
4. The solid phase extraction rack according to claim 1, wherein the collection tube holder comprises a second bottom plate, a first mesh plate and a second mesh plate arranged at intervals along the first direction, the first mesh plate is formed with the plurality of first limiting holes, the second mesh plate is positioned between the first mesh plate and the second bottom plate, the second mesh plate is formed with a plurality of second limiting holes corresponding to the plurality of first limiting holes one by one, the second bottom plate is in contact with the extraction column holder, the liquid collection tubes are adapted to be supported on the second bottom plate, and each liquid collection tube passes through the corresponding second limiting hole and the corresponding first limiting hole respectively.
5. The solid phase extraction rack according to claim 4, wherein a plurality of limiting grooves are formed on the second bottom plate, each limiting groove is arranged in one-to-one correspondence to each second limiting hole, and the bottom of the liquid collecting pipe is suitable for being positioned in the limiting groove.
6. The solid phase extraction rack of claim 4, wherein the second bottom plate, the first mesh plate, and the second mesh plate are integrally formed.
7. The solid phase extraction rack of any one of claims 1-6, wherein the central axis of each first limiting hole coincides with the central axis of each interface.
8. The solid phase extraction rack of any one of claims 1-6, wherein the number of interfaces is N, wherein 50. Ltoreq. N.ltoreq.100.
9. The solid phase extraction rack of any one of claims 1-6, wherein the extraction column holder is a plastic or metal piece; the collecting pipe fixing frame is made of plastic or metal parts.
10. A solid phase extraction apparatus, comprising:
a solid phase extraction cartridge according to any one of claims 1 to 9;
the extraction column connecting pipes are respectively arranged on the corresponding interfaces in a penetrating way;
the plurality of solid phase extraction columns are respectively connected with the corresponding extraction column connecting pipes;
the liquid collecting pipes are respectively arranged in the corresponding first limiting holes in a penetrating mode;
the liquid in each solid phase extraction column is suitable for flowing into a corresponding liquid collecting pipe through a corresponding extraction column connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221775952.7U CN217745823U (en) | 2022-07-11 | 2022-07-11 | Solid phase extraction frame and solid phase extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221775952.7U CN217745823U (en) | 2022-07-11 | 2022-07-11 | Solid phase extraction frame and solid phase extraction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217745823U true CN217745823U (en) | 2022-11-08 |
Family
ID=83871180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221775952.7U Active CN217745823U (en) | 2022-07-11 | 2022-07-11 | Solid phase extraction frame and solid phase extraction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217745823U (en) |
-
2022
- 2022-07-11 CN CN202221775952.7U patent/CN217745823U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103191584B (en) | Portable solid phase extracting device | |
| CN217745823U (en) | Solid phase extraction frame and solid phase extraction device | |
| CN108220152B (en) | Circulating tumor cell capturing system | |
| Chigome et al. | Semi-micro solid phase extraction with electrospun polystyrene fiber disks | |
| CN104815467B (en) | A kind of rocking handle type can have enough to meet the need the biology laboratory filtration unit of use | |
| CN2925616Y (en) | Universal magnetic separating stand | |
| CN110846225A (en) | Automatic change nucleic acid extraction appearance | |
| CN207516320U (en) | Film device is crossed in a kind of chromatography detection | |
| CN205759875U (en) | Solid-Phase Extraction liquid receives device and solid-phase extraction device | |
| CN214861361U (en) | Solid phase extraction device | |
| CN211798967U (en) | Solid phase extraction eluent collection device | |
| CN108744589B (en) | Extraction detection device for chemistry experiments | |
| CN211886957U (en) | Test-tube rack convenient to different specification chemistry test tubes are placed | |
| CN218496846U (en) | Gas chromatograph with high detection sensitivity | |
| CN216717971U (en) | Series negative pressure solid phase extraction device | |
| CN208599225U (en) | A kind of experiment sensing chamber Solid Phase Extraction special frame | |
| CN209885869U (en) | Test tube rack | |
| CN212207219U (en) | Liquid chromatography-mass spectrometry detection equipment for biomacromolecule to-be-detected medicine | |
| CN216877954U (en) | Simple normal pressure solid phase extraction device | |
| CN209530160U (en) | A kind of solid-phase extraction device | |
| CN104729906B (en) | Efficient and pollution-free boron isotope pressurization separating device for low-boron environmental samples | |
| CN218146726U (en) | Multifunctional magnetic frame | |
| CN211847970U (en) | Automatic change nucleic acid extraction appearance | |
| CN213254536U (en) | Multifunctional magnetic frame | |
| CN220665338U (en) | Magnetic frame with improved structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |