CN208596139U - A kind of solid-phase extraction column large volume injector - Google Patents
A kind of solid-phase extraction column large volume injector Download PDFInfo
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- CN208596139U CN208596139U CN201821172484.8U CN201821172484U CN208596139U CN 208596139 U CN208596139 U CN 208596139U CN 201821172484 U CN201821172484 U CN 201821172484U CN 208596139 U CN208596139 U CN 208596139U
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- main body
- injector main
- injector
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- phase extraction
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Abstract
The utility model discloses a kind of solid-phase extraction column large volume injectors, including injector main body, the internal capacity of injector main body is greater than 1000mL, content line is carved in injector main body, injector main body is the truncated conical shape cavity that from top to bottom diameter is gradually reduced, injector main body bottom end is provided with cup dolly, injector main body bottom end is also provided with and communicated with gradual change type point mouth, the top Jian Zui is equipped with piston groove, piston core is plugged in piston groove, piston core one end extends on the outside of the piston groove after passing through the preformed hole on the sharp mouth, piston core is provided with the consent with the sharp mouth and the same central axis of injector main body, the lower part Jian Zui is provided with wedge plug, wedge plug is gradually reduced round table-like for diameter from top to bottom, wedge plug is closely covered by its preset through-hole is rolled in the lower part Jian Zui.The purpose of the utility model is to provide a kind of solid-phase extraction column large volume injectors, and structure is simple, easy to use.
Description
Technical field
The utility model relates to a kind of solid-phase extraction column large volume injectors.
Background technique
Solid Phase Extraction is common enrichment purification means in chemical experiment, and it is using more and more extensive.In measurement water body
When middle trace contaminant, enrichment 1000-2000mL water sample is generally required, the volume for commonly using solid-phase extraction column is usually 3-6mL, institute
Loading problem is relatively complicated when being enriched with large volume fluid sample, and the cost for carrying out loading using devices such as sample-adding pumps is again excessively high
It is high, it is therefore desirable to which that a kind of simple device can satisfy the loading work of large volume fluid sample.
Utility model content
In order to solve the above-mentioned technical problem, the purpose of the utility model is to provide a kind of solid-phase extraction column large volume loadings
Device, structure is simple, easy to use.
In order to solve the above technical problems, the utility model adopts the following technical solution:
The internal capacity of a kind of solid-phase extraction column large volume injector, including injector main body, the injector main body is big
In being carved with content line on 1000mL, the injector main body, from top to bottom diameter is gradually reduced the injector main body
Truncated conical shape cavity, injector main body bottom end are provided with cup dolly, and injector main body bottom end is also provided with and communicated with
Gradual change type point mouth, the top Jian Zui are equipped with piston groove, are plugged with piston core in the piston groove, described piston core one end passes through
It is extended on the outside of the piston groove after preformed hole on the point mouth, the piston core is provided with and the sharp mouth and injector master
The consent of the same central axis of body, the lower part Jian Zui are provided with wedge plug, and the wedge plug is that from top to bottom diameter is gradually reduced
It is round table-like, the wedge plug closely covers by its preset through-hole and is rolled in the lower part Jian Zui.
Further, the diameter of the cup dolly is less than the maximum gauge of the injector main body, and is greater than on described
The minimum diameter of sample device main body.
Further, the injector main body, cup dolly, sharp mouth and piston groove are arranged with central axis.
Further, the top end diameter of the injector main body is 12.5cm, bottom diameter 3.5cm.
Further, the wedge plug top end diameter is 2.0cm, bottom diameter 1.0cm.
Further, one side of piston core is provided with the handle that flow velocity is adjusted convenient for rotary-piston core.
Compared with prior art, the advantageous effects of the utility model:
Wedge-shaped plug sleeve is rolled at lower body part point mouth, is then connected with solid-phase extraction column, and is sealed by wedge plug,
The liquid of volume needed for installing in injector main body, the i.e. adjustable flow velocity of rotation piston core, completes the enrichment of bulk sample loading
Work；Structure is simple, easy to operate.
Detailed description of the invention
The utility model is described in further detail for explanation with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of the utility model solid-phase extraction column large volume injector；
Fig. 2 is the schematic diagram of piston core；
Fig. 3 is the schematic diagram of wedge plug；
Description of symbols: 1- injector main body；101 sharp mouths；2- piston core；201- consent；202- handle；3- wedge shape
Plug；4- cup dolly；5- piston groove.
Specific embodiment
As shown in Figures 1 to 3, a kind of solid-phase extraction column large volume injector, including injector main body 1, the injector master
The internal capacity of body 1 is greater than 1000mL, is carved with content line in the injector main body 1, the injector main body 1 be by up to
The truncated conical shape cavity that lower diameter is gradually reduced, 1 bottom end of injector main body are provided with cup dolly 4, the injector master
1 bottom end of body is also provided with and communicated with gradual change type point mouth 101, and point 101 top of mouth is equipped with piston groove 5, grafting in the piston groove 5
5 outside of piston groove, institute are extended to after having piston core 2, described 2 one end of piston core to pass through the preformed hole on the sharp mouth 101
It states piston core 2 and is provided with consent 201 with the sharp mouth 101 and the same central axis of injector main body 1,101 lower part of the point mouth
It is provided with wedge plug 3, the wedge plug 3 is that from top to bottom diameter is gradually reduced round table-like, and the wedge plug 3 is default by it
Through-hole closely cover and be rolled in sharp 101 lower part of mouth.Piston core 2 is polytetrafluoroethylene (PTFE) material, piston groove 5, sharp mouth 101 and loading
The glass structure that device main body 1 is integrally formed.
In the present embodiment, the diameter of the cup dolly is less than the maximum gauge of the injector main body, and is greater than described
The minimum diameter of injector main body；The top end diameter of the injector main body is 12.5cm, bottom diameter 3.5cm, circular base
Seat diameter is 11cm.The wedge plug top end diameter is 2.0cm, and bottom diameter is that 1.0cm is round table-like, and material is silica gel.It is described
Injector main body 1, cup dolly 4, sharp mouth 101 and piston groove 5 are arranged with central axis, in order to which liquid flowing is more smooth.It is described
2 one side of piston core is provided with the handle 202 that flow velocity is adjusted convenient for rotary-piston core.
In another embodiment, sharp mouth 101 includes two parts fixed with the upper and lower end grafting of piston groove 5 sealing respectively, living
" ten " font channel, including vertical passage and horizontal channel are provided in a plug slot 5, two parts of sharp mouth 101 are plugged in vertical respectively
Into channel both ends, and piston core 2 runs through horizontal channel, and consent 201 and the same central axis in vertical passageway.
The action process of the utility model is as follows:
Piston core 2 is placed in the piston groove 5 on the sharp mouth 101 of injector main body 1, is checked whether in the dead of night, by 3 sets of wedge plug
It being rolled at 1 lower part point mouth 101 of injector main body, solid-phase extraction column is connected with the sharp mouth 101 of main body 1, and is sealed by wedge plug,
The liquid of volume needed for being installed in the cavity of injector main body 1, by handle 202 rotate piston core 2 can adjust consent 201 with
The state of upper/lower terminal connection completes bulk sample loading and is enriched with work to adjust flow velocity.
Embodiment described above is only that the preferred embodiment of the utility model is described, not to the utility model
Range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are practical new to this
The various changes and improvements that the technical solution of type is made should all fall into the protection scope that the utility model claims book determines
It is interior.
Claims (7)
1. a kind of solid-phase extraction column large volume injector, it is characterised in that: including injector main body, the injector main body it is interior
Portion's volume is greater than 1000mL, is carved with content line in the injector main body, the injector main body be from top to bottom diameter by
Decrescence small truncated conical shape cavity, injector main body bottom end are provided with cup dolly, and injector main body bottom end also connects
Logical to be provided with gradual change type point mouth, the top Jian Zui is equipped with piston groove, is plugged with piston core, the piston core in the piston groove
One end extends on the outside of the piston groove after passing through the preformed hole on the sharp mouth, the piston core be provided with the sharp mouth and
The consent of the same central axis of injector main body, the lower part Jian Zui are provided with wedge plug, and the wedge plug is diameter from top to bottom
What is be gradually reduced is round table-like, and the wedge plug is closely covered by its preset through-hole is rolled in the lower part Jian Zui.
2. solid-phase extraction column large volume injector according to claim 1, it is characterised in that: the diameter of the cup dolly
Less than the maximum gauge of the injector main body, and it is greater than the minimum diameter of the injector main body.
3. solid-phase extraction column large volume injector according to claim 1, it is characterised in that: the injector main body, circle
Shape pedestal, sharp mouth and piston groove are arranged with central axis.
4. solid-phase extraction column large volume injector according to claim 2, it is characterised in that: the top of the injector main body
End diameter is 12.5cm, bottom diameter 3.5cm.
5. solid-phase extraction column large volume injector according to claim 1, it is characterised in that: the wedge plug top end diameter
For 2.0cm, bottom diameter 1.0cm.
6. solid-phase extraction column large volume injector according to claim 1, it is characterised in that: one side of piston core is set
It is equipped with the handle that flow velocity is adjusted convenient for rotary-piston core.
7. solid-phase extraction column large volume injector according to claim 4, it is characterised in that: the cup dolly diameter is
11cm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821172484.8U CN208596139U (en) | 2018-07-24 | 2018-07-24 | A kind of solid-phase extraction column large volume injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821172484.8U CN208596139U (en) | 2018-07-24 | 2018-07-24 | A kind of solid-phase extraction column large volume injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208596139U true CN208596139U (en) | 2019-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821172484.8U Active CN208596139U (en) | 2018-07-24 | 2018-07-24 | A kind of solid-phase extraction column large volume injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208596139U (en) |
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2018
- 2018-07-24 CN CN201821172484.8U patent/CN208596139U/en active Active
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