CN216955886U

CN216955886U - Single-walled carbon nanotube solid phase extraction column

Info

Publication number: CN216955886U
Application number: CN202123334075.8U
Authority: CN
Inventors: 苏言杰; 张亚非; 齐燕
Original assignee: Nanjing Micron Electronic Industry Research Institute Co ltd; Nanjing Crystal Carbon Nanotechnology Co ltd
Current assignee: Nanjing Micron Electronic Industry Research Institute Co ltd; Nanjing Crystal Carbon Nanotechnology Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-07-12
Anticipated expiration: 2031-12-28

Abstract

The utility model discloses a single-walled carbon nanotube solid-phase extraction small column which comprises a column, wherein a cover plate is arranged on the column, a fixing plug used for connecting the column is fixedly arranged on the cover plate, two sieve plates are fixedly arranged in the column, and a single-walled carbon nanotube filler layer is arranged between the two sieve plates; the pipe column is fixedly connected with an installation block, a threaded rod is connected onto the installation block in a sliding mode, a through hole used for enabling the threaded rod to vertically move is formed in the installation block, and the cover plate is connected with the threaded rod in a sliding mode; the threaded rod is provided with a fixing mechanism, the fixing mechanism comprises a lantern ring fixedly connected with the threaded rod, and an elastic sealing ring is fixedly connected to the lantern ring. According to the utility model, pollutants in the outside air are not easy to enter the interior of the column, so that the purity of the target component separated and purified by the column is prevented from being reduced, and the accuracy of the liquid chromatography detection is not reduced.

Description

Single-walled carbon nanotube solid phase extraction column

Technical Field

The utility model relates to the technical field of solid phase extraction, in particular to a single-walled carbon nanotube solid phase extraction column.

Background

In the processing of samples, a solid phase extraction technology is often required, and the solid phase extraction technology can be used for separating, purifying and concentrating samples, can more effectively separate analytes from interfering components, reduces the pretreatment process of the samples, and is simpler to operate.

In the process of using the solid-phase extraction column, due to the poor sealing performance of the column port of the solid-phase extraction column, pollutants in the outside air can easily enter the column body, so that the purity of target components separated and purified by the column body is reduced, and the accuracy of final liquid chromatography detection is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the following defects in the prior art, and provides a single-walled carbon nanotube solid-phase extraction column which is provided for solving the problems that in the using process of a solid-phase extraction column, due to the poor sealing property of a column opening of the solid-phase extraction column, pollutants in the outside air easily enter the column body, the purity of target components separated and purified by the column body is reduced, and the accuracy of final liquid chromatography detection is reduced.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a single-walled carbon nanotube solid-phase extraction column comprises a column, wherein a cover plate is arranged on the column, a fixing plug used for connecting the column is fixedly arranged on the cover plate, two sieve plates are fixedly arranged in the column, and a single-walled carbon nanotube packing layer is arranged between the two sieve plates;

the pipe column is fixedly connected with an installation block, a threaded rod is connected onto the installation block in a sliding mode, a through hole used for enabling the threaded rod to vertically move is formed in the installation block, and the cover plate is connected with the threaded rod in a sliding mode;

the threaded rod is provided with a fixing mechanism, the fixing mechanism comprises a lantern ring fixedly connected with the threaded rod, and an elastic sealing ring is fixedly connected to the lantern ring.

Preferably, a nut is connected to the threaded rod in a threaded manner and is used for limiting the movement of the collar.

Preferably, the connecting ring is fixedly connected to the pipe column, and the cross section of the connecting ring is in an isosceles trapezoid shape.

Preferably, a spring is fixedly connected to the threaded rod, and the spring is fixedly connected with the mounting block.

Preferably, the column head is fixedly connected to the column, and the rotating cover is in threaded connection with the column head.

Preferably, a protective sleeve is fixedly connected to the pipe column, and anti-skid grains are arranged on the protective sleeve.

Compared with the prior art, the utility model has the beneficial effects that:

after a sample is added into a cavity in the pipe column, a cover plate is placed right above the pipe column, a fixed plug is connected with a feed inlet on the pipe column, then a threaded rod is manually moved upwards, a lantern ring moves along with the threaded rod, in the moving process of the lantern ring, the elastic sealing ring fixedly connected with the inner wall of the lantern ring can move upwards along the surface of the pipe column and the surface of the connecting ring until the surface of the elastic sealing ring is tightly attached to the surface of the fixed plug, then the screw cap is rotated to enable the screw cap to be in threaded connection with the threaded rod, so that the elastic sealing ring can be stably connected with the fixed plug, under the cooperation of fixed stopper and elastic sealing ring is used, can make the leakproofness of tubular column better, inside the pollutant in the outside air was difficult to get into the tubular column, prevented that tubular column separation and purification's target component purity from reducing, the accuracy that final liquid chromatogram detected also can not descend.

Drawings

FIG. 1 is a schematic front structure diagram of a single-walled carbon nanotube solid phase extraction cartridge according to the present invention;

FIG. 2 is a schematic cross-sectional structure diagram of a single-walled carbon nanotube solid phase extraction cartridge according to the present invention;

fig. 3 is a partially enlarged view of a in fig. 1.

In the figure: the device comprises a pipe column 1, a protective sleeve 2, a rotary cover 3, a lantern ring 4, a cover plate 5, a connecting ring 6, a threaded rod 7, a spring 8, a mounting block 9, a sieve plate 10, a single-walled carbon nanotube packing layer 11, an elastic sealing ring 12 and a screw cap 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

The terms "upper", "lower", "left", "right", "middle" and "one" used in the present invention are for clarity of description, and are not used to limit the scope of the present invention, and the relative relationship between the terms and the modifications may be regarded as the scope of the present invention without substantial technical change.

Referring to fig. 1-3, a single-walled carbon nanotube solid phase extraction columella, including tubular column 1, be provided with apron 5 on the tubular column 1, fixed mounting has the fixed stopper that is used for connecting tubular column 1 on the apron 5, fixed mounting has two sieve 10 in the tubular column 1, install single-walled carbon nanotube packing layer 11 between two sieve 10, fixedly connected with installation piece 9 on the tubular column 1, sliding connection has threaded rod 7 on the installation piece 9, set up the through-hole that is used for the vertical removal of threaded rod 7 on the installation piece 9, apron 5 and threaded rod 7 sliding connection, fixedly connected with spring 8 on the threaded rod 7, spring 8 and installation piece 9 fixed connection, when threaded rod 7 takes place to remove, because spring 8 one end and threaded rod 7 fixed connection, the other end and installation piece 9 fixed connection, spring 8 will take place to deform along with the removal of threaded rod 7.

Be provided with fixed establishment on threaded rod 7, fixed establishment include with 7 fixed connection's of threaded rod lantern ring 4, fixedly connected with elasticity sealing washer 12 on the lantern ring 4, threaded rod 7 goes up threaded connection has nut 13, nut 13 is used for restricting the removal of the lantern ring 4, through rotating nut 13, make

nut

13 and 7 threaded connection of threaded rod, the terminal surface and the terminal surface laminating of apron 5 up to nut 13, thereby can make the stable and fixed stopper of elasticity sealing washer 12 be connected, fixedly connected with go-between 6 on the tubular column 1, go-between 6 cross section sets up to isosceles trapezoid, because the cross section of go-between 6 sets up to isosceles trapezoid, can make reciprocating that elasticity sealing washer 12 can be smooth, the surface of elasticity sealing washer 12 can laminate with the fixed stopper surface.

Fixedly connected with column cap on the tubular column 1, threaded connection has the rotation lid 3 on the column cap, rotate lid 3 through the messenger and take place to rotate, and with column cap threaded connection, can prevent that the sample in the tubular column 1 from passing through the column cap and flowing, fixedly connected with lag 2 on the tubular column 1, be provided with anti-skidding line on the lag 2, through holding lag 2, because be provided with anti-skidding line on the lag 2, can increase the frictional force between palm of the hand and the lag 2, prevent that tubular column 1 and palm of the hand from taking place to break away from, be favorable to improving the stability of tubular column 1.

In the utility model, after a sample is added into a cavity in a tubular column 1, a cover plate 5 is placed right above the tubular column 1, a fixed plug on the cover plate 5 is connected with a feed inlet on the tubular column 1, then a threaded rod 7 is manually moved upwards, a lantern ring 4 moves along with the threaded rod 7, an elastic sealing ring 12 fixedly connected with the inner wall of the lantern ring 4 moves upwards along with the surface of the tubular column 1 and the surface of a connecting ring 6 in the moving process of the lantern ring 4 until the surface of the elastic sealing ring 12 is tightly attached to the surface of the fixed plug, because one end of a spring 8 is fixedly connected with the threaded rod 7 and the other end is fixedly connected with an installation block 9, the spring 8 deforms along with the movement of the threaded rod 7, then a nut 13 is rotated to enable the nut 13 to be in threaded connection with the threaded rod 7 until the end face of the nut 13 is attached to the end face of the cover plate 5, so that the elastic sealing ring 12 can be stably connected with the fixed plug, under the cooperation of fixed stopper and elastic sealing ring 12 is used, can make tubular column 1's leakproofness better, inside the pollutant in the outside air is difficult to get into tubular column 1, prevented that tubular column 1 separation and purification's target component purity from reducing, the accuracy that final liquid chromatogram detected also can not descend.

In the present invention, the terms "mounted," "connected," "secured," and the like are to be construed broadly unless otherwise specifically indicated and limited.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A single-walled carbon nanotube solid phase extraction columella comprises a column (1), and is characterized in that a cover plate (5) is arranged on the column (1), a fixing plug used for connecting the column (1) is fixedly arranged on the cover plate (5), two sieve plates (10) are fixedly arranged in the column (1), and a single-walled carbon nanotube packing layer (11) is arranged between the two sieve plates (10);

the pipe column (1) is fixedly connected with an installation block (9), the installation block (9) is connected with a threaded rod (7) in a sliding mode, a through hole used for enabling the threaded rod (7) to vertically move is formed in the installation block (9), and the cover plate (5) is connected with the threaded rod (7) in a sliding mode;

be provided with fixed establishment on threaded rod (7), fixed establishment include with threaded rod (7) fixed connection's lantern ring (4), fixed connection elastic seal circle (12) on the lantern ring (4).

2. The single-wall carbon nanotube solid phase extraction column as claimed in claim 1, wherein a nut (13) is threadedly connected to the threaded rod (7), and the nut (13) is used for limiting the movement of the collar (4).

3. The single-wall carbon nanotube solid phase extraction column as claimed in claim 1, wherein the column (1) is fixedly connected with a connecting ring (6), and the cross section of the connecting ring (6) is configured as an isosceles trapezoid.

4. The single-wall carbon nanotube solid phase extraction column as claimed in claim 1, wherein a spring (8) is fixedly connected to the threaded rod (7), and the spring (8) is fixedly connected to the mounting block (9).

5. The single-walled carbon nanotube solid phase extraction cartridge as claimed in claim 1, wherein a column head is fixedly connected to the column (1), and a rotary cover (3) is screwed to the column head.

6. The single-walled carbon nanotube solid-phase extraction cartridge as claimed in claim 1, wherein a protective sleeve (2) is fixedly connected to the cartridge (1), and the protective sleeve (2) is provided with anti-slip patterns.