CN211798966U - Small-size chromatographic column - Google Patents
Small-size chromatographic column Download PDFInfo
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- CN211798966U CN211798966U CN202020164726.XU CN202020164726U CN211798966U CN 211798966 U CN211798966 U CN 211798966U CN 202020164726 U CN202020164726 U CN 202020164726U CN 211798966 U CN211798966 U CN 211798966U
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- chromatographic column
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Abstract
The utility model discloses a small-size chromatographic column, include: the system comprises a Pasteur pipette, a connecting tube and a conical tube, wherein the length of the Pasteur pipette is 230mm, and the volume of the Pasteur pipette is 2 mL; one end of the connecting pipe is communicated with the pasteur suction pipe; the upper end and the lower end of the conical pipe are opened, the inner diameter of the conical pipe is gradually reduced from top to bottom, and the lower end of the conical pipe is connected with the other end of the connecting pipe so that the conical pipe is communicated with the connecting pipe. The utility model provides a technical scheme's beneficial effect is: the standard pasteur pipette is used for replacing the traditional chromatographic column to carry out chromatographic separation operation, so that the use amount of fixing agents such as alumina and silica gel and samples is reduced, and the environmental protection is facilitated; meanwhile, the Pasteur pipette is disposable, so that a complicated column washing process can be avoided, and the efficiency of a chromatographic column experiment is improved.
Description
Technical Field
The utility model belongs to the technical field of chemistry experiment device technique and specifically relates to a small-size chromatography column is related to.
Background
A chromatography column is a device commonly used in organic chemistry experiments, which separates components of a mixture according to their different partition coefficients in a stationary phase and a mobile phase.
The diameter of the existing chromatographic column is generally more than 2cm, the height is generally more than 30cm, and when the existing chromatographic column is used, not only more fixing agents such as alumina and silica gel need to be added, but also more mixture samples need to be added, so that the pollution to the environment is larger; meanwhile, after the mixture sample is separated, the chromatographic column needs to be cleaned before the next use, the cleaning process of the chromatographic column is complicated, and the efficiency of the chromatographic column experiment is reduced.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide a chromatography column that reduces the amount of fixatives and samples such as alumina and silica gel used to protect the environment and improve the efficiency of the experiment.
A compact chromatography column, comprising: a pasteur suction pipe, a connecting pipe and a conical pipe,
the length of the Pasteur pipette is 230mm, and the volume of the Pasteur pipette is 2 mL;
one end of the connecting pipe is communicated with the pasteur suction pipe;
the upper end and the lower end of the conical pipe are opened, the inner diameter of the conical pipe is gradually reduced from top to bottom, and the lower end of the conical pipe is connected with the other end of the connecting pipe so that the conical pipe is communicated with the connecting pipe.
Compared with the prior art, the utility model provides a technical scheme's beneficial effect is: the standard pasteur pipette is used for replacing the traditional chromatographic column to carry out chromatographic separation operation, so that the use amount of fixing agents such as alumina and silica gel and samples is reduced, and the environmental protection is facilitated; meanwhile, the Pasteur pipette is disposable, so that a complicated column washing process can be avoided, and the efficiency of a chromatographic column experiment is improved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a small-sized chromatography column (with air nozzles omitted) provided by the present invention;
FIG. 2 is a schematic view of the structure of the gas nozzle of the small-sized chromatography column in FIG. 1;
in the figure: 1-pasteur sucker, 2-connecting pipe, 3-taper pipe, 4-air nozzle, 31-inner ground, 41-outer ground and 42-wale.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the present invention provides a small-sized chromatography column, which includes a pasteur pipette 1, a connecting tube 2 and a tapered tube 3.
Referring to fig. 1, the pasteur pipette 1 is a glass pasteur pipette, which is a disposable pipette commonly used in laboratories, and is inexpensive, the length of the pasteur pipette 1 is 230mm, and the volume of the pasteur pipette 1 is 2 mL.
Referring to fig. 1, one end of the connection tube 2 is connected to the pasteur pipette 1, and in this embodiment, one end of the connection tube 2 is connected to the thicker end of the pasteur pipette 1.
Referring to fig. 1, the upper and lower ends of the tapered tube 3 are open, the inner diameter of the tapered tube 3 is gradually reduced from top to bottom, and the lower end of the tapered tube 3 is connected to the other end of the connecting tube 2, so that the tapered tube 3 is communicated with the connecting tube 2.
The utility model provides a small-size chromatographic column is when using, with pasteur straw 1, connecting pipe 2 and conical tube 3 equipment back, fill in the cotton in the thinner one end of pasteur straw 1, add aluminium oxide from the upper end opening part of conical tube 3 again, fixative such as silica gel, aluminium oxide, fixative such as silica gel gets into pasteur straw 1 along connecting pipe 2 in, and fall into the top of the cotton that fills in, the mixture sample that will separate again is added from conical tube 3's upper end opening part, the mixture sample gets into pasteur straw 1 along connecting pipe 2 in, add the eluant in pasteur straw 1 after that, the eluant is carrying the mixture sample and is passing in the fixative, because the speed that each component passes through the fixative in the mixture sample is different, thereby the mesh of each component in the separation mixture sample has been reached. The pasteur pipette 1 is a disposable device, and is discarded after completing the separation operation of a mixture, so that the complicated column washing operation can be avoided, and meanwhile, the internal diameter of the pasteur pipette 1 is far smaller than that of a conventional chromatographic column, so that only a small amount of fixing agents such as alumina and silica gel and mixture samples are consumed, and the environment protection is facilitated.
Further, referring to fig. 1, the connection tube 2 is a rubber hose, one end of the rubber hose is sleeved on the pasteur straw 1, and the other end of the rubber hose is sleeved on the lower end of the conical tube 3.
Specifically, referring to fig. 1, the rubber hose is a polytetrafluoroethylene tube, and the length of the polytetrafluoroethylene tube is 100 mm.
Further, please refer to fig. 2, the small-size chromatographic column still includes air cock 4, air cock 4 has the first chamber that holds of both ends open-ended about one, the first internal diameter top-down that holds the chamber is crescent, the lower extreme of air cock 4 with the upper end of conical tube 3 is connected so that first hold the chamber with conical tube 3 intercommunication, the upper end of air cock 4 is used for being connected with pressure device (not shown in the figure), pressure device can be the air pump, also can be the nitrogen gas jar, the utility model discloses do not injectd this, in the preferred embodiment, pressure device is the air pump, the export of air pump and the upper end intercommunication of air cock 4, when using, can adjust the velocity of flow of chromatographic column through adjusting the pressure of air pump.
Preferably, referring to fig. 1 and 2, an inner ground 31 is disposed at an upper opening of the tapered tube 3, and an outer ground 41 matched with the inner ground 31 is disposed at a lower opening of the air faucet 4, so as to ensure air tightness at a connection between the tapered tube 3 and the air faucet 4.
Preferably, referring to fig. 2, the upper end of the air cap 4 is provided with a rib 42 so as to have better air tightness when being connected to a hose (not shown).
For better understanding of the present invention, the following will be described in detail with reference to fig. 1 and 2 to provide a small-sized chromatography column of the present invention: when in use, after the pasteur pipette 1, the connecting pipe 2 and the conical pipe 3 are assembled, cotton is plugged into the thinner end of the pasteur pipette 1, fixing agents such as alumina, silica gel and the like are added from the opening at the upper end of the conical pipe 3, the fixing agents such as the alumina, the silica gel and the like enter the pasteur pipette 1 along the connecting pipe 2 and fall above the plugged cotton, a mixture sample needing to be separated is added from the opening at the upper end of the conical pipe 3, the mixture sample enters the pasteur pipette 1 along the connecting pipe 2, then eluent is added into the pasteur pipette 1, an air nozzle 4 is arranged on the conical pipe 3, the outlet of the air pump is connected with the air nozzle 4, the air pump applies pressure on the eluent to enable the eluent to descend, the eluent carries the mixture sample to pass through the fixing agents, and the speeds of all components in the mixture sample are different due to the difference of the fixing agents, thereby achieving the purpose of separating each component in the mixture sample. The pasteur pipette 1 is a disposable device, and is discarded after completing the separation operation of a mixture, so that the complicated column washing operation can be avoided, and meanwhile, the internal diameter of the pasteur pipette 1 is far smaller than that of a conventional chromatographic column, so that only a small amount of fixing agents such as alumina and silica gel and mixture samples are consumed, and the environment protection is facilitated.
In summary, the utility model uses the standard pasteur pipette 1 to replace the traditional chromatographic column to carry out the chromatographic separation operation, thus reducing the usage amount of the fixing agents such as alumina and silica gel and the mixture sample, and being beneficial to the environmental protection; meanwhile, the Pasteur pipette 1 is disposable, so that a complicated column washing process can be avoided, and the efficiency of a chromatographic column experiment is improved.
The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.
Claims (6)
1. A compact chromatography column, comprising: a pasteur suction pipe, a connecting pipe and a conical pipe,
the length of the Pasteur pipette is 230mm, and the volume of the Pasteur pipette is 2 mL;
one end of the connecting pipe is communicated with the pasteur suction pipe;
the upper end and the lower end of the conical pipe are opened, the inner diameter of the conical pipe is gradually reduced from top to bottom, and the lower end of the conical pipe is connected with the other end of the connecting pipe so that the conical pipe is communicated with the connecting pipe.
2. The miniature chromatography column of claim 1, wherein said connecting tube is a rubber hose, one end of said rubber hose is sleeved on said pasteur pipette, and the other end of said rubber hose is sleeved on the lower end of said conical tube.
3. The compact chromatographic column of claim 2, wherein the rubber hose is a polytetrafluoroethylene tube having a length of 100 mm.
4. The mini-chromatographic column of claim 1, further comprising a gas nipple, wherein the gas nipple has a first receiving cavity with an upper end and a lower end open, the inner diameter of the first receiving cavity gradually increases from top to bottom, the lower end of the gas nipple is connected with the upper end of the tapered tube to communicate the first receiving cavity with the tapered tube, and the upper end of the gas nipple is used for connecting with a pressure device.
5. The miniature chromatography column of claim 4, wherein the opening of the upper end of said conical tube is provided with an inner ground, and the opening of the lower end of said air faucet is provided with an outer ground matched with said inner ground.
6. The compact chromatographic column of claim 4, wherein the upper end of the gas nipple is provided with a raised pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020164726.XU CN211798966U (en) | 2020-02-11 | 2020-02-11 | Small-size chromatographic column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020164726.XU CN211798966U (en) | 2020-02-11 | 2020-02-11 | Small-size chromatographic column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211798966U true CN211798966U (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020164726.XU Active CN211798966U (en) | 2020-02-11 | 2020-02-11 | Small-size chromatographic column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211798966U (en) |
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2020
- 2020-02-11 CN CN202020164726.XU patent/CN211798966U/en active Active
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