CN215195527U - Anti-negative pressure type solid phase extraction reservoir with adjustable flow velocity - Google Patents
Anti-negative pressure type solid phase extraction reservoir with adjustable flow velocity Download PDFInfo
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- CN215195527U CN215195527U CN202120929213.8U CN202120929213U CN215195527U CN 215195527 U CN215195527 U CN 215195527U CN 202120929213 U CN202120929213 U CN 202120929213U CN 215195527 U CN215195527 U CN 215195527U
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Abstract
The utility model relates to an extraction technical field, concretely relates to adjustable anti-negative pressure formula solid phase extraction reservoir of velocity of flow. Including oblate spindle type liquid storage kettle, the top of liquid storage kettle is equipped with the inlet, and inlet department is equipped with sealing piston, and sealing piston upper portion is equipped with circular pull ring, and the bottom center of liquid storage kettle is equipped with the drain pipe, is equipped with velocity of flow governing valve on the drain pipe, still is equipped with the gas vent on the drain pipe, and the gas vent setting is in velocity of flow governing valve below, installs a blast pipe on the gas vent, and the landing leg is passed through to the upper end of blast pipe and fixes on liquid storage kettle, still be equipped with discharge valve on the blast pipe. This reservoir simple structure, the practicality is strong to can improve the degree of accuracy of extraction experiment.
Description
Technical Field
The utility model relates to an extraction technical field, concretely relates to adjustable anti-negative pressure formula solid phase extraction reservoir of velocity of flow.
Background
The solid phase extraction is a sample pretreatment technology, is developed by combining a liquid-solid extraction technology and a column liquid chromatography technology, and is mainly used for separating, purifying and concentrating samples. Compared with the traditional liquid-liquid extraction method, the solid-phase extraction technology improves the recovery rate of the analyte, more effectively separates the analyte from interfering components, reduces the sample pretreatment process, has simple operation, time saving and labor saving, and is widely applied to the physicochemical inspection of medicines and foods.
During the solid phase extraction experiment, because the volume of getting a sample is general bigger, the experimenter can select a small amount of repeated the elution of getting a sample, but the repeated operation is wasted time and energy, can increase the loss of raw and other materials liquid in the experimentation, influences the experiment degree of accuracy. In addition, on one hand, the flow rate of raw material liquid is difficult to control during extraction, so that the extraction efficiency is influenced; on the other hand, when the raw material solution is exposed to air for a long time, unstable components are easily decomposed, and the experimental results are affected.
Therefore, a liquid reservoir capable of adjusting flow rate and preventing negative pressure is specially proposed for the solid phase extraction technology to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the not enough of above-mentioned problem, the utility model aims at providing an adjustable anti negative pressure formula solid phase extraction reservoir of velocity of flow, this reservoir simple structure, the practicality is strong to can improve the degree of accuracy of extraction experiment.
The utility model discloses a realize through following technical scheme: the utility model provides an adjustable anti-negative pressure formula solid phase extraction reservoir of velocity of flow, a serial communication port, including oblate spindle type liquid storage kettle, the top of liquid storage kettle is equipped with the inlet, and inlet department is equipped with sealing piston, and sealing piston upper portion is equipped with circular pull ring, and the bottom center of liquid storage kettle is equipped with the drain pipe, is equipped with the velocity of flow governing valve on the drain pipe, still is equipped with the gas vent on the drain pipe, and the gas vent setting is in velocity of flow governing valve below, installs a blast pipe on the gas vent, and the landing leg is passed through to the upper end of blast pipe and fixes on the liquid storage kettle, still be equipped with discharge valve on the blast pipe.
Preferably, the liquid inlet is wide at the top and narrow at the bottom and is in an inverted trapezoid shape.
Preferably, the diameter of the liquid outlet pipe is 5-7mm, and the bottom of the liquid outlet pipe is designed by adopting a sharp mouth connecting port.
Preferably, the oblate spindle-type liquid storage pot and the liquid outlet pipe are integrally designed by adopting a glass material.
Preferably, the sealing piston is a trapezoidal rubber plug or a glass plug, the sealing piston and the circular pull ring are integrally designed, and when the glass plug is adopted, the part of the sealing piston, which is in contact with the liquid inlet, is made of ground glass.
The utility model has the advantages that:
the utility model discloses a stock solution kettle adopts oblate spindle type design not only can increase the stock solution volume, avoids decomposing in the long-time air that exposes to the sun, can also reduce the number of times of getting one's own judgement, reduces sample solution loss to the stability of extraction has effectively been guaranteed.
The utility model discloses an adjustable sample solution velocity of flow velocity adjusting valve improves extraction efficiency and experimental accuracy.
The utility model discloses a gas vent produces the negative pressure when effectively preventing sample solution from flowing into the solid phase extraction pipe, the stability of assurance test.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the attached figure, 1 liquid storage pot, 2 sealing piston, 3 round pull ring, 4 support legs, 5 exhaust pipes, 6 exhaust valves, 7 liquid outlet pipes and 8 flow rate regulating valves.
Detailed Description
In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the following embodiments are combined to further explain the technical solutions of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the anti-negative pressure solid phase extraction liquid reservoir with adjustable flow rate comprises a flat-round spindle-shaped liquid storage pot 1, the flat-round spindle-shaped liquid storage pot 1 is designed to increase the stability of the device, increase the volume of the liquid storage, and meet the requirement of large-volume sample storage, a liquid inlet is formed in the top of the liquid storage pot 1, and is wide at the top and narrow at the bottom and is in an inverted trapezoid shape, so that an experimenter can pour samples into the liquid storage pot 1 conveniently; a sealing piston 2 for preventing organic solution from volatilizing is arranged at the liquid inlet, so that the stability of the experiment is improved; the upper part of the sealing piston 2 is provided with a circular pull ring 3 which is convenient for people to pull by hand; a liquid outlet pipe 7 is arranged at the center of the bottom of the liquid storage pot 1, namely the liquid outlet pipe 7 is arranged at the lowest part of the liquid storage pot 1, so that sample liquid is prevented from remaining in the liquid storage pot 1; a flow velocity adjusting valve 8 is arranged on the liquid outlet pipe 7, and an experimenter can control the flow velocity of the sample according to the requirement during extraction; in order to prevent the liquid storage pot 1 from generating negative pressure when entering the solid phase extraction column, an exhaust port is further arranged on the liquid outlet pipe 7 and is arranged below the flow speed adjusting valve 8, an exhaust pipe 5 is arranged on the exhaust port, the upper end of the exhaust pipe 5 is fixed on the liquid storage pot 1 through a support leg 4, and an exhaust valve 6 is further arranged on the exhaust pipe 5.
In order to adapt to self-filling glass solid-phase extraction tubes with different specifications and increase the universality of the device, the diameter of the liquid outlet tube 7 is 5-7mm, and the bottom of the liquid outlet tube 7 adopts a sharp mouth connector design, so that sample stock solution can flow into the solid-phase extraction tube without leakage through the sharp mouth of the liquid outlet tube 7.
In order to ensure the device to have good tightness, the oblate spindle-type liquid storage pot 1 and the liquid outlet pipe 7 are integrally designed by adopting glass materials. The sealing piston 2 adopts a trapezoidal rubber plug or a glass plug, the sealing piston 2 and the circular pull ring 3 are integrally designed, and when the glass plug is adopted, the part of the sealing piston 2 contacting the liquid inlet is made of ground glass.
When the sample needs to carry out solid phase extraction or purification from filling formula glass solid phase extraction pipe, with this device with fill formula glass solid phase extraction union coupling certainly, be about to sharp mouth stretch into in the solid phase extraction pipe, then open sealed piston 2, add pending sample solution in stock solution pot 1, add the back of accomplishing, according to the extraction demand, twist and move velocity of flow governing valve 8, open discharge valve 6, make the velocity of flow adjust into suitable size and get into the little post of solid phase extraction, improve extraction efficiency and experimental rate of accuracy.
The above embodiments are only specific examples of the present invention, and are not intended to limit the present invention in any way, and those skilled in the art may modify or modify the above embodiments by using the technical content disclosed above and equivalent embodiments. However, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the present invention.
Claims (5)
1. The utility model provides an adjustable anti-negative pressure formula solid phase extraction reservoir of velocity of flow, a serial communication port, including oblate spindle type liquid storage kettle (1), the top of liquid storage kettle (1) is equipped with the inlet, inlet department is equipped with sealing piston (2), sealing piston (2) upper portion is equipped with circular pull ring (3), the bottom center of liquid storage kettle (1) is equipped with drain pipe (7), be equipped with velocity of flow governing valve (8) on drain pipe (7), still be equipped with the gas vent on drain pipe (7), the gas vent sets up in velocity of flow governing valve (8) below, installation blast pipe (5) on the gas vent, landing leg (4) are passed through to the upper end of blast pipe (5) and are fixed on liquid storage kettle (1), still be equipped with discharge valve (6) on blast pipe (5).
2. The reservoir of claim 1, wherein the liquid inlet is wide at the top and narrow at the bottom and has an inverted trapezoid shape.
3. The flow-rate-adjustable anti-negative-pressure solid-phase extraction liquid accumulator as claimed in claim 1, wherein the diameter of the liquid outlet pipe (7) is 5-7mm, and the bottom of the liquid outlet pipe (7) is designed by adopting a sharp-mouth connecting port.
4. The flow-rate-adjustable negative-pressure-proof solid-phase extraction liquid accumulator of claim 1 or 3, wherein the oblate spindle-shaped liquid storage pot (1) and the liquid outlet pipe (7) are integrally designed by glass.
5. The flow-rate-adjustable negative-pressure-proof solid-phase extraction liquid storage device according to claim 1, wherein the sealing piston (2) is a trapezoidal rubber plug or a glass plug, the sealing piston (2) and the circular pull ring (3) are integrally designed, and when the glass plug is adopted, the part of the sealing piston (2) contacting the liquid inlet is made of ground glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120929213.8U CN215195527U (en) | 2021-04-30 | 2021-04-30 | Anti-negative pressure type solid phase extraction reservoir with adjustable flow velocity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120929213.8U CN215195527U (en) | 2021-04-30 | 2021-04-30 | Anti-negative pressure type solid phase extraction reservoir with adjustable flow velocity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215195527U true CN215195527U (en) | 2021-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120929213.8U Active CN215195527U (en) | 2021-04-30 | 2021-04-30 | Anti-negative pressure type solid phase extraction reservoir with adjustable flow velocity |
Country Status (1)
| Country | Link |
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| CN (1) | CN215195527U (en) |
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2021
- 2021-04-30 CN CN202120929213.8U patent/CN215195527U/en active Active
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