CN203816306U - Suction filtration device for filtering chromatographymobile phase - Google Patents
Suction filtration device for filtering chromatographymobile phase Download PDFInfo
- Publication number
- CN203816306U CN203816306U CN201420249446.3U CN201420249446U CN203816306U CN 203816306 U CN203816306 U CN 203816306U CN 201420249446 U CN201420249446 U CN 201420249446U CN 203816306 U CN203816306 U CN 203816306U
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- China
- Prior art keywords
- connection plug
- sand core
- filtration device
- suction filtration
- funnel
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- 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.)
- Expired - Lifetime
Links
- 238000000967 suction filtration Methods 0.000 title claims abstract description 37
- 238000001914 filtration Methods 0.000 title claims abstract description 29
- 239000002904 solvent Substances 0.000 claims abstract description 24
- 230000006378 damage Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000004587 chromatography analysis Methods 0.000 abstract 1
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- Treatment Of Liquids With Adsorbents In General (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a suction filtration device for filtering a chromatographymobile phase. Thesuction filtration device comprises a sand core filtration device and a connecting plug, wherein a receiving bottle in the sand core filtration device is a chromatographymobile phase solvent bottle. With the adoption of the suction filtration device, the filtered chromatographymobile phaseis nottransferred, and the suction filtration device can be directly applied to a chromatography instrument to detect samples, so that increase of the detection cost, increase of environmental pollution and harm to human health caused by transfer of the chromatographymobile phase can be avoided. The suction filtration device is simple in structure, convenient to assemble and disassemble and applicable to filtration of the chromatographymobile phase.
Description
Technical field
The utility model relates to a kind of suction filtration device, relates in particular to a kind of suction filtration device for filtering chromatogram mobile phase.
Background technology
Along with the popularization and application of chromatographic apparatus in industry-by-industry, detecting the required mobile phase of sample must be also a huge amount.We know, mobile phase before use must be through filtering, and the method adopting is at present to filter with sand core filter, first mobile phase is filled in the receiving bottle supporting with sand core filter, then the mobile phase having filtered is shifted in chromatogram flow phase solvent bottle.In the process of above-mentioned transfer, can there is unavoidably the unrestrained situation outside of mobile phase, cause waste so on the one hand, on the other hand because mobile phase mostly is organic solvent, can, to environment, operating personnel's health be caused damage.Even mobile phase is not unrestrained in the process shifting, because mobile phase mostly is volatile solvent, also have a certain amount of volatilization, thereby to environment, infringement people's health.And the filtration of each mobile phase all will use a receiving bottle, after finishing using, also to clean, be also the one waste to manpower and materials.
No matter being the loss that mobile phase is wasted the material aspect causing, or volatilizing the environment bringing, the infringement of health, or clean the waste that receiving bottle causes, is all that we do not wish to see.Therefore, a kind of research and development of the suction filtration device that can avoid above-mentioned situation generation just seem particularly important.
Utility model content
In order to overcome the defect of prior art, solve after chromatogram flow phase is filtered and shift the series of problems bringing, the utility model provides a kind of suction filtration device for filtering chromatogram mobile phase, described suction filtration device can directly be filtered to chromatogram flow phase in chromatogram flow phase solvent bottle, the waste of material be can avoid, the pollution to environment and the infringement to operator ' s health reduced.
The technical scheme that the utility model provides is as follows:
A kind of suction filtration device for filtering chromatogram mobile phase, comprise funnel, miillpore filter, sand core funnel, clamping device, receiving bottle, described funnel is positioned at sand core funnel top, miillpore filter is placed between funnel and sand core funnel, funnel is fixedly connected with by clamping device with sand core funnel, sand core funnel lower outside is provided with exhaust tube, sand core funnel inside is provided with catheter, sand core funnel is set on receiving bottle, wherein, described suction filtration device also comprises connection plug, described receiving bottle is chromatogram flow phase solvent bottle, described connection plug is between sand core funnel and chromatogram flow phase solvent bottle, described connection plug is the stopper that inside is provided with through hole, the diameter of described through hole is greater than the external diameter of catheter, the internal diameter of described connection plug bottom equals the external diameter of chromatogram flow phase solvent bottle bottleneck, the lower inside of described connection plug is provided with internal thread, the screw thread at described internal thread and chromatogram flow phase solvent bottle bottleneck position matches, the external diameter on described connection plug top is less than the internal diameter of sand core funnel, the top of described connection plug is socketed in sand core funnel.
The above-mentioned suction filtration device for filtering chromatogram mobile phase, the height ratio of described connection plug top and bottom is 3:2.
The above-mentioned suction filtration device for filtering chromatogram mobile phase, the top section of described connection plug is isosceles trapezoid.
The above-mentioned suction filtration device for filtering chromatogram mobile phase, the lower base angle of described connection plug top isosceles trapezoid is 84 °.
The above-mentioned suction filtration device for filtering chromatogram mobile phase, described catheter is placed in the through hole of connection plug inside.
Suction filtration device described in the utility model, it is the improvement to existing sand core filter, by the setting of connection plug, can realize filtering chromatogram mobile phase directly by solvent filter to chromatogram flow phase solvent bottle, avoid the use of the original receiving bottle of sand core filter, avoid the transfer of chromatogram flow phase, thereby avoid the cleaning of receiving bottle and because chromatogram flow phase shifts unrestrained, the volatilization of the organic solvent that causes, finally reduce the cost that chromatographic apparatus detects, alleviate the pollution to environment, alleviated the infringement to health.
Suction filtration device described in the utility model, the internal diameter of described connection plug bottom is identical with the external diameter size of chromatogram flow phase solvent bottle bottleneck, and connection plug lower inside is provided with the screw thread matching with chromatogram flow phase solvent bottle whorl of bottleneck, can in the time of connection plug and the installation of chromatogram flow phase solvent bottle, realize sealing, thereby guarantee carrying out smoothly of suction filtration.
Suction filtration device described in the utility model, the preferred isosceles trapezoid of top section of described connection plug is to consider connection plug easy accessibility, although also can use when the top section of connection plug is square, but due to large with sand core funnel contact area, in the time of detachable, require great effort very much, careless slightly sand core funnel will being smashed, causes unnecessary loss.The preferred isosceles trapezoid of top section of connection plug, and the lower base angle of isosceles trapezoid is preferably 84 ° time, can ensure connection plug easy accessibility, can guarantee again when connection plug and sand core funnel are installed to reach sealing state, thus the efficiency while effectively having ensured suction filtration.
Suction filtration device described in the utility model, after the top of described connection plug is installed in sand core funnel, the catheter of sand core funnel can insert in the through hole of connection plug inside, like this in suction filtration process, chromatogram flow phase after filtration can enter in the chromatogram flow phase solvent bottle that is installed on connection plug below smoothly, the phenomenon that does not have leakage occurs, has also just avoided the loss and the harm that cause due to leakage.
Brief description of the drawings
Fig. 1 is front view of the present utility model.
The implication of number in the figure is: 1 funnel, 2 miillpore filters, 3 sand core funnels, 4 clamping devices, 5 receiving bottles, 6 exhaust tubes, 7 catheters, 8 connection plugs, 9 chromatogram flow phase solvent bottles.
Detailed description of the invention
Suction filtration device for filtering chromatogram mobile phase provided by the utility model, has avoided the transfer of chromatogram flow phase after filtering, thereby has avoided a series of problem of bringing owing to shifting.
As shown in drawings, a kind of suction filtration device for filtering chromatogram mobile phase, comprise funnel 1, miillpore filter 2, sand core funnel 3, clamping device 4, receiving bottle 5, described funnel 1 is positioned at sand core funnel 3 tops, miillpore filter 2 is placed between funnel 1 and sand core funnel 3, funnel 1 is fixedly connected with by clamping device 4 with sand core funnel 3, sand core funnel 3 lower outsides are provided with exhaust tube 6, sand core funnel 3 inside are provided with catheter 7, sand core funnel 3 is set on receiving bottle 5, it is characterized in that, described suction filtration device also comprises connection plug 8, described receiving bottle 5 is chromatogram flow phase solvent bottle 9, described connection plug 8 is between sand core funnel 3 and chromatogram flow phase solvent bottle 9, described connection plug 8 is the inner stopper that is provided with through hole, the diameter of described through hole is greater than the external diameter of catheter 7, the internal diameter of described connection plug 8 bottoms equals the external diameter of chromatogram flow phase solvent bottle 9 bottlenecks, the lower inside of described connection plug 8 is provided with internal thread, the screw thread at described internal thread and chromatogram flow phase solvent bottle 9 bottleneck positions matches, the external diameter on described connection plug 8 tops is less than the internal diameter of sand core funnel 3, the top of described connection plug 8 is socketed in sand core funnel 3.
The preferred 3:2 of height ratio of described connection plug 8 tops and bottom.The preferred isosceles trapezoid of top section of described connection plug 8.Preferably 84 °, the lower base angle of described connection plug 8 top isosceles trapezoids.Described catheter 7 is placed in connection plug preferably in the through hole of 8 inside.
When use, the each several part of suction filtration device is connected and fixed, then sand core funnel 3 lower outside exhaust tubes are connected with vacuum plant, can carry out suction filtration to chromatogram flow phase, after suction filtration, disconnect vacuum plant, unload chromatogram flow phase solvent bottle and be directly installed on chromatographic apparatus, can be used for the detection of sample.
In sum, a kind of suction filtration device for filtering chromatogram mobile phase provided by the utility model, has avoided the transfer of chromatogram flow phase after filtering, and simple in structure, easy to use, is suitable for the filtration of chromatogram flow phase.
Claims (5)
1. the suction filtration device for filtering chromatogram mobile phase, comprise funnel (1), miillpore filter (2), sand core funnel (3), clamping device (4), receiving bottle (5), described funnel (1) is positioned at sand core funnel (3) top, miillpore filter (2) is placed between funnel (1) and sand core funnel (3), funnel (1) is fixedly connected with by clamping device (4) with sand core funnel (3), sand core funnel (3) lower outside is provided with exhaust tube (6), sand core funnel (3) inside is provided with catheter (7), sand core funnel (3) is set on receiving bottle (5), it is characterized in that, described suction filtration device also comprises connection plug (8), described receiving bottle (5) is chromatogram flow phase solvent bottle (9), described connection plug (8) is positioned between sand core funnel (3) and chromatogram flow phase solvent bottle (9), described connection plug (8) is the inner stopper that is provided with through hole, the diameter of described through hole is greater than the external diameter of catheter (7), the internal diameter of described connection plug (8) bottom equals the external diameter of chromatogram flow phase solvent bottle (9) bottleneck, the lower inside of described connection plug (8) is provided with internal thread, the screw thread at described internal thread and chromatogram flow phase solvent bottle (9) bottleneck position matches, the external diameter on described connection plug (8) top is less than the internal diameter of sand core funnel (3), the top of described connection plug (8) is socketed in sand core funnel (3).
2. a kind of suction filtration device for filtering chromatogram mobile phase according to claim 1, is characterized in that, the height ratio of described connection plug (8) top and bottom is 3:2.
3. a kind of suction filtration device for filtering chromatogram mobile phase according to claim 1, is characterized in that, the top section of described connection plug (8) is isosceles trapezoid.
4. a kind of suction filtration device for filtering chromatogram mobile phase according to claim 3, is characterized in that, the lower base angle of described connection plug (8) top isosceles trapezoid is 84 °.
5. a kind of suction filtration device for filtering chromatogram mobile phase according to claim 1, is characterized in that, described catheter (7) is placed in the inner through hole of connection plug (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420249446.3U CN203816306U (en) | 2014-05-15 | 2014-05-15 | Suction filtration device for filtering chromatographymobile phase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420249446.3U CN203816306U (en) | 2014-05-15 | 2014-05-15 | Suction filtration device for filtering chromatographymobile phase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203816306U true CN203816306U (en) | 2014-09-10 |
Family
ID=51471851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420249446.3U Expired - Lifetime CN203816306U (en) | 2014-05-15 | 2014-05-15 | Suction filtration device for filtering chromatographymobile phase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203816306U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106474799A (en) * | 2016-11-24 | 2017-03-08 | 朱山 | A kind of Suction filtration device and sucking filtration method |
| CN107340349A (en) * | 2017-07-31 | 2017-11-10 | 湖南德米特仪器有限公司 | A kind of solvent inversor and a kind of method for suppressing mobile phase mildew |
| CN109621512A (en) * | 2018-11-13 | 2019-04-16 | 天津大学 | It is a kind of can automatic sampling improvement Suction filtration device and filter method |
| CN112717513A (en) * | 2020-12-23 | 2021-04-30 | 广东产品质量监督检验研究院（国家质量技术监督局广州电气安全检验所、广东省试验认证研究院、华安实验室） | Centrifuging tube suction filter device |
-
2014
- 2014-05-15 CN CN201420249446.3U patent/CN203816306U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106474799A (en) * | 2016-11-24 | 2017-03-08 | 朱山 | A kind of Suction filtration device and sucking filtration method |
| CN107340349A (en) * | 2017-07-31 | 2017-11-10 | 湖南德米特仪器有限公司 | A kind of solvent inversor and a kind of method for suppressing mobile phase mildew |
| CN107340349B (en) * | 2017-07-31 | 2023-11-21 | 湖南德米特仪器有限公司 | Solvent inversion device and method for inhibiting mobile phase growth mould |
| CN109621512A (en) * | 2018-11-13 | 2019-04-16 | 天津大学 | It is a kind of can automatic sampling improvement Suction filtration device and filter method |
| CN112717513A (en) * | 2020-12-23 | 2021-04-30 | 广东产品质量监督检验研究院（国家质量技术监督局广州电气安全检验所、广东省试验认证研究院、华安实验室） | Centrifuging tube suction filter device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |