CN217594646U - Liquid separating device suitable for liquid sample pretreatment extraction - Google Patents
Liquid separating device suitable for liquid sample pretreatment extraction Download PDFInfo
- Publication number
- CN217594646U CN217594646U CN202221147139.5U CN202221147139U CN217594646U CN 217594646 U CN217594646 U CN 217594646U CN 202221147139 U CN202221147139 U CN 202221147139U CN 217594646 U CN217594646 U CN 217594646U
- Authority
- CN
- China
- Prior art keywords
- extraction
- liquid
- extraction tube
- tube
- pretreatment
- 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
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to an extraction and liquid separation device suitable for pretreatment of liquid samples, which comprises a fixed base, an extraction tube, a liquid transfer device and an extraction tube cover; the fixed base is provided with a groove so as to facilitate the insertion of the extraction tube; the liquid-transfering device is inserted on the extraction tube cover, and the extraction tube cover is matched with the tube mouth of the extraction tube. The extraction divides liquid device of this technical scheme under the same space, can fix more extraction pipes, and then saves operating space. And the extraction tube can be pulled down from unable adjustment base, makes things convenient for operations such as laboratory technician weighing, centrifugation and washing. The extraction tube of this application can realize extraction, centrifugation, filtration, can directly shift final extract to the chromatogram vial in, avoid secondary pollution midway to be applicable to the supplementary extraction mode of supersound, the practicality is higher, has improved extraction efficiency and reproducibility greatly.
Description
Technical Field
The utility model relates to a laboratory pretreatment appurtenance technical field, concretely relates to be applicable to liquid sample pretreatment extraction divides liquid device.
Background
In chemical analysis and detection, it is often necessary to perform pre-treatment processes such as extraction, centrifugation, filtration, collection and the like on a sample, and then perform analysis and detection on the obtained sample. The common method is to put the sample into a triangular flask, add an extracting agent for oscillation extraction, then centrifuge at a high speed or filter in a funnel with qualitative filter paper, and finally remove and separate the sample by a separating funnel or a syringe. The method for separating the separating funnel needs to transfer samples for several times, so that the pretreatment efficiency of the samples is influenced, and meanwhile, impurities are easily introduced in the transfer process to influence the reliability of the detection result; the syringe removal method is highly efficient, but is also prone to the introduction of impurities, particularly in the case of target substances in the supernatant. In order to avoid the problems of secondary pollution, waste of manpower and material resources and influence on experimental results in the operation process, a set of sample extraction device which is simple and convenient to operate, can be recycled, and is time-saving and labor-saving is urgently needed to be developed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a be applicable to liquid sample pretreatment extraction divides liquid device to in solving the sample pretreatment operation process that current chemical analysis detected, the sample easily receives secondary pollution and extravagant manpower and materials, influences the problem of experimental result.
In order to achieve the purpose, the method is realized by the following technical scheme:
an extraction liquid-separating device suitable for pretreatment of a liquid sample comprises a fixed base, an extraction tube, a liquid-transferring device and an extraction tube cover; the fixed base is provided with a groove so as to facilitate the insertion of the extraction tube;
the liquid-transfering device is inserted on the extraction tube cover, and the extraction tube cover is matched with the tube mouth of the extraction tube.
Further, unable adjustment base is the cuboid structure, is provided with a plurality of recesses at the upper surface of cuboid structure.
Furthermore, the fixed base is composed of a plurality of modules, the maximum size of the fixed base composed of the modules cannot exceed the width of the ultrasonic oscillator, and the maximum edge of a single module cannot exceed the width of the ultrasonic oscillator; the diameter of the groove is equal to the outer diameter of the extraction tube support column, the outer diameter of the extraction tube is matched with the centrifuge angle rotor, and the extraction tube cover is matched with the tube opening of the extraction tube.
Further, the liquid transfer device comprises a liquid transfer tube body, a piston is inserted above the liquid transfer tube body, a liquid inlet is arranged below the liquid transfer tube body, and a liquid outlet is arranged on the side wall of the liquid transfer tube body close to the lower part; the liquid inlet is provided with a first one-way valve, and the liquid outlet is provided with a second one-way valve.
Furthermore, an organic filter membrane is arranged at the inlet of the second one-way valve of the liquid outlet.
Further, a handle is arranged above the pipette body.
Furthermore, scales are arranged on the extraction tube.
The utility model has the advantages that:
the extraction divides liquid device of this technical scheme under the same space, can fix more extraction pipes, and then saves operating space. And the extraction tube can be pulled down from unable adjustment base, makes things convenient for operations such as laboratory staff's weighing, centrifugation and washing. The extraction tube of this application can realize extraction, centrifugation, filtration, can directly shift final extract to the chromatogram vial in, avoid secondary pollution midway to be applicable to the supplementary extraction mode of supersound, the practicality is higher, has improved extraction efficiency and reproducibility greatly.
Drawings
Fig. 1 is a schematic view of the fixing base of the present invention.
Fig. 2 is a schematic view of the extraction apparatus of the present invention.
Fig. 3 is the schematic view of the initial state of the liquid-transferring device of the present invention.
Fig. 4 is an enlarged view of fig. 3 at a.
Fig. 5 is a suction state schematic section of the liquid-transfering device of the present invention.
Fig. 6 is an enlarged view of fig. 5 at B.
Description of the reference numerals
1-unable adjustment base, 2-recess, 3-extraction tube, 4-scale, 5-extraction tube lid, 6-pipetting device, 7-piston, 8-pipe, 9-second check valve, 10-first check valve.
Detailed Description
The technical solutions of the present invention are described in detail below with reference to the accompanying drawings, and the following embodiments are only exemplary and can be used for explaining and explaining the technical solutions of the present invention, but should not be construed as limiting the technical solutions of the present invention.
The application provides a be applicable to liquid sample pretreatment extraction and divide liquid device, including unable adjustment base 1, as shown in figure 1, the unable adjustment base of this application is the cuboid structure, plays the effect of stabilizing whole device. In other embodiments of this application, unable adjustment base is the assembled, is formed by a plurality of module concatenations, conveniently is applied to the sample analysis of different quantity. A plurality of grooves 2 are arranged on the fixed base, and the grooves are convenient for the insertion of the extraction tubes.
When the fixing base of the application is composed of a plurality of modules, the maximum size (length and width) of the fixing base cannot exceed the width of the ultrasonic oscillator, and the maximum side of a single module cannot exceed the width of the ultrasonic oscillator; the diameter of the groove is equal to the outer diameter of the extraction tube support column, the outer diameter of the extraction tube is matched with the centrifuge angle rotor, and the extraction tube cover is matched with the tube opening of the extraction tube.
As shown in fig. 2, the device further comprises an extraction tube 3, a pipetting device 6 and an extraction tube cover 5, wherein the pipetting device 6 is inserted into the extraction tube cover 5, and the extraction tube cover is matched with the tube opening of the extraction tube. The utility model provides an extraction tube can follow unable adjustment base and pull down, makes things convenient for the experimenter to weigh operations such as sample, centrifugation, washing, the device's that has also significantly reduced simultaneously storage space. The application of extraction pipe adopts borosilicate glass, is convenient for wash and reuse.
In this application, the extraction tube lid can be pulled down from the extraction tube, and convenient the washing, pipetting device can also pull down with the extraction tube lid is fixed.
The utility model provides a unable adjustment base and extraction tube cap all adopt the polytetrafluoroethylene material, and it has more stable chemistry, does not take place to react with the chemical liquid of extraction.
The liquid transfer device 6 comprises a liquid transfer tube body, a piston 7 is inserted above the liquid transfer tube body, a liquid inlet is arranged below the liquid transfer tube body, and a liquid outlet is arranged on the side wall of the liquid transfer tube body close to the lower part; a first one-way valve 10 is arranged at the liquid inlet, and a second one-way valve 9 is arranged at the liquid outlet.
An organic filter membrane (not shown in the figure) is arranged at the inlet of the second one-way valve of the liquid outlet, the outer diameter of the liquid outlet is matched with the inner diameter of the organic filter membrane, a handle is arranged above the pipette body, and scales are marked on the wall of the extraction tube, so that quantitative analysis is facilitated.
As shown in fig. 3 to 6, the process using the present sample extraction apparatus is as follows: the sample is added to the extraction tube 3, the extractant is added, the extraction tube lid 5 with the pipetting device is closed (piston 7 in the initial state, as shown in fig. 3), screwed down and the extraction tube is inserted into the recess 2 of the stationary base. Then placing the mixture into an ultrasonic extraction instrument for ultrasonic oscillation. And after the extraction step is finished, taking down the extraction tube to a high-speed centrifuge for centrifugation, and then re-inserting the extraction tube into the groove of the fixed base. The piston 7 of the pipetting device is pulled upwards and a volume of liquid is pipetted into it through the first one-way valve 10 (as shown in fig. 5). Then a 0.45 μm organic filter membrane is arranged on the liquid outlet pipe. Finally the piston is slowly pushed down, wherein the liquid is transferred from the side second one-way valve 9 to the side tube 8 into the chromatography vial.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The extraction liquid-separating device suitable for the pretreatment of the liquid sample is characterized by comprising a fixed base, an extraction tube, a liquid-transferring device and an extraction tube cover; the fixed base is provided with a groove so as to facilitate the insertion of the extraction tube;
the liquid-transfering device is inserted on the cover of the extraction tube, and the cover of the extraction tube is matched with the tube opening of the extraction tube.
2. The extraction and liquid separation device suitable for pretreatment of a liquid sample according to claim 1, wherein the fixing base is of a cuboid structure, and a plurality of grooves are formed in the upper surface of the cuboid structure.
3. The extraction and liquid separation device suitable for pretreatment of a liquid sample according to claim 2, wherein the fixing base is composed of a plurality of modules, the maximum size of the fixing base composed of the plurality of modules cannot exceed the width of the ultrasonic oscillator, and the maximum side of a single module cannot exceed the width of the ultrasonic oscillator; the diameter of the groove is equal to the outer diameter of the extraction tube support column, the outer diameter of the extraction tube is matched with the centrifuge angle rotor, and the extraction tube cover is matched with the tube opening of the extraction tube.
4. The extraction and liquid separation device suitable for pretreatment of the liquid sample as claimed in claim 1, wherein the liquid transfer device comprises a pipette body, a piston is inserted above the pipette body, a liquid inlet is arranged below the pipette body, and a liquid outlet is arranged on a side wall of the pipette body close to the lower part; the liquid inlet is provided with a first one-way valve, and the liquid outlet is provided with a second one-way valve.
5. The extraction and liquid separation device suitable for pretreatment of the liquid sample as recited in claim 4, wherein an organic filter membrane is disposed at an inlet of the second one-way valve of the liquid outlet.
6. The extraction and liquid separation device suitable for pretreatment of the liquid sample as claimed in claim 4, wherein a handle is arranged above the pipette body.
7. The extraction and liquid separation device suitable for pretreatment of the liquid sample as claimed in claim 1, wherein the extraction tube is provided with a scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221147139.5U CN217594646U (en) | 2022-05-12 | 2022-05-12 | Liquid separating device suitable for liquid sample pretreatment extraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221147139.5U CN217594646U (en) | 2022-05-12 | 2022-05-12 | Liquid separating device suitable for liquid sample pretreatment extraction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217594646U true CN217594646U (en) | 2022-10-18 |
Family
ID=83566974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221147139.5U Active CN217594646U (en) | 2022-05-12 | 2022-05-12 | Liquid separating device suitable for liquid sample pretreatment extraction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217594646U (en) |
-
2022
- 2022-05-12 CN CN202221147139.5U patent/CN217594646U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101663580A (en) | Be used to separate apparatus and method with analyzing blood | |
| US3743103A (en) | Phase separator for continuous flow operation | |
| US4119125A (en) | Method and apparatus for handling liquid samples | |
| CN102507297A (en) | Microwave-assisted Soxhlet and solid-phase extraction coupling device, microwave-assisted Soxhlet and solid-phase extraction coupling method and application of microwave-assisted Soxhlet and solid-phase extraction coupling | |
| CN101308067B (en) | Liquid phase micro- extraction on-line preliminary treatment device for capillary pipe electrophoresis-ampere detector and its usage method | |
| CN217594646U (en) | Liquid separating device suitable for liquid sample pretreatment extraction | |
| KR100354341B1 (en) | Top and bottom open centrifuge tube | |
| CN201107228Y (en) | Liquid phantom micro-extraction simple apparatus of complicated ground mass sample pretreatment | |
| US4181700A (en) | Centrifuge tube sequential fractionator | |
| CN1908655A (en) | Solvent quenching accelerating device online co-operated with gas phase chromatography and method thereof | |
| CN206321612U (en) | A kind of filter-type chromatogram bottle and chromatograph | |
| CN206986177U (en) | A kind of integrated purification of nucleic acid extractor | |
| CN115029210A (en) | Closed type rapid nucleic acid extraction device and extraction method adopting one-step method | |
| CN206440676U (en) | A kind of small amount sample filter | |
| CN210545132U (en) | Small-size reactor with filtering capability | |
| TWI802273B (en) | Device and method for extracting biomolecules | |
| CN211697155U (en) | Pretreatment device for detecting reaction liquid substances in production process of fluazinam | |
| CN217180222U (en) | Dispersed solid phase extraction tube | |
| CN220207240U (en) | Chylomicron separator | |
| CN217425313U (en) | Sample pretreatment device for chromatographic analysis | |
| CN111504754A (en) | One-step sample purifying tube | |
| CN105758688B (en) | A kind of dispersion liquid-liquid micro-extraction external member | |
| CN218923856U (en) | Extracting tube for extracting hydrophilic lipophilic compounds from biological samples | |
| CN211814442U (en) | Vertical digestion sleeve | |
| CN214525635U (en) | Reagent pre-installation storage tube for detection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |