QuECHERs sample purification column

Abstract

The utility model discloses a QuECHERs sample purification column, and relates to the technical field of QuECHERs sample purification, the QuECHERs sample purification column comprises a main column body and a supporting assembly, the upper end of the main column body is connected with a sealing column cover, the supporting assembly is arranged outside the main column body, and the supporting assembly comprises a vertical sliding groove, a transverse sliding groove, a limiting sliding block, a mounting ring and a supporting column rod, transverse sliding grooves are formed in the two ends of the exterior of each vertical sliding groove, limiting sliding blocks are connected into the vertical sliding grooves, mounting rings are arranged outside the limiting sliding blocks, supporting column rods are additionally arranged on the two sides of the exterior of each mounting ring, and a purification assembly is arranged in the main column body and comprises a copper catalyst layer, a molecular sieve layer, an activated carbon layer and a microfiltration membrane layer. A molecular sieve layer is arranged below the copper catalyst layer, and an activated carbon layer is arranged below the molecular sieve layer. According to the QuECHERs sample purification column, the purification column can be stably and vertically placed on a table top, and the flexibility and motility of the purification column in the using process are improved.

Description

Technical Field

[0001] This utility model relates to the field of QuECHERs sample purification technology, specifically a QuECHERs sample purification column. Background Technology

[0002] QuECHERs is a rapid sample pretreatment technology for agricultural product testing. The core of QuECHERs technology lies in its speed, simplicity, affordability, effectiveness, reliability, and safety—characteristics corresponding to the letters in its name. Traditional sample pretreatment methods, such as liquid-liquid extraction and solid-phase extraction, are typically cumbersome, time-consuming, and costly. QuECHERs technology, however, significantly improves detection efficiency by simplifying procedures and reducing costs. A purification column is a commonly used biotechnology tool, primarily used to purify and separate specific molecules from complex mixtures. Its working principle is based on the different interaction forces between molecules within the column, separating target molecules from others through methods such as size separation, charge separation, and hydrophilicity / lipophilicity separation. A sample purification column is required during the execution of QuECHERs technology; however, existing sample purification columns still have the following shortcomings:

[0003] When using existing sample purification columns, most of them are not easy to place stably and vertically on a table, and stable placement requires the use of external tools. This limits the use of sample purification columns, resulting in reduced practicality and efficiency.

[0004] Therefore, in view of this, we studied and improved the existing structure and its shortcomings, and proposed a QuECHERs sample purification column. Utility Model Content

[0005] The purpose of this invention is to provide a QuECHERs sample purification column to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a QuECHERs sample purification column, comprising a main column and a support assembly. A sealing column cap is connected to the upper end of the main column. The support assembly is provided on the outside of the main column, and the support assembly includes a vertical groove, a horizontal groove, a limiting slider, a mounting ring, and a support rod. Horizontal grooves are provided at both ends of the external side of the vertical groove, and a limiting slider is connected inside the vertical groove. A mounting ring is provided outside the limiting slider, and support rods are added on both sides outside the mounting ring. The purification assembly is provided inside the main column.

[0007] Furthermore, the internal dimensions of the vertical groove are adapted to the external dimensions of the limiting slider, and the limiting slider is slidably connected to the main column through the vertical groove.

[0008] Furthermore, the internal dimensions of the mounting ring are adapted to the external dimensions of the main column, and the inner wall of the mounting ring is in close contact with the outer surface of the main column.

[0009] Furthermore, there are two support columns, and the two support columns are symmetrically arranged on both sides of the lower end of the mounting ring with respect to the central axis of the front of the mounting ring.

[0010] Furthermore, the purification component includes a copper catalyst layer, a molecular sieve layer, an activated carbon layer, and a microporous filter membrane layer. The molecular sieve layer is disposed below the copper catalyst layer, and the activated carbon layer is disposed below the molecular sieve layer. The microporous filter membrane layer is disposed at the lower end of the activated carbon layer.

[0011] Furthermore, the purification component also includes a first snap-fit ​​ring, an installation docking groove, a rubber sealing ring, and a second snap-fit ​​ring. The first snap-fit ​​ring is added to the upper part of the main column, and an installation docking groove is opened at the top of the main column. A rubber sealing ring is connected inside the installation docking groove, and a second snap-fit ​​ring is added to the lower part of the outer side of the sealing column cover.

[0012] Furthermore, a copper catalyst layer and an activated carbon layer are respectively disposed on the upper and lower sides of the molecular sieve layer, and the molecular sieve layer is disposed and confined between the copper catalyst layer and the activated carbon layer.

[0013] Furthermore, the internal dimensions of the mounting groove are adapted to the external dimensions of the rubber sealing ring, and the rubber sealing ring is connected to the main column through the mounting groove.

[0014] This invention provides a QuECHERs sample purification column, which has the following beneficial effects:

[0015] 1. This utility model, through the setting of the support component, enables the limiting slider to be fixedly installed inside the main column by the vertical sliding grooves opened on both sides of the main column when the QuECHERs sample purification column is in use. The vertical sliding grooves allow the limiting slider to slide vertically inside the main column, and drive the mounting ring installed on the outside of the limiting slider to move accordingly outside the main column. At the same time, when the limiting slider slides counterclockwise into the lower horizontal sliding groove, the support column is higher than the bottom of the main column, thereby providing stable support for the main column. This eliminates the need to use external tools to vertically place the purification column, improving the flexibility and dynamism of the sample purification column during use.

[0016] 2. This utility model, through the design of the purification components, enables the removal of organic matter and heavy metal ions from samples during the use of the QuECHERs sample purification column via a copper catalyst layer. Simultaneously, the molecular sieve layer, a porous synthetic material, further purifies the sample. An activated carbon layer, in conjunction with a microporous membrane layer, adsorbs and filters organic matter from the sample. During the installation of the sealed column cap and the main column, a rubber sealing ring, along with an installation groove, enhances the sealing at the connection. After installation, the first locking ring engages below the second locking ring, effectively sealing the upper end of the main column and improving the overall practicality and efficiency of the sample purification column. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a QuECHERs sample purification column according to the present invention;

[0018] Figure 2 This is a three-dimensional unfolded structural diagram of the support component of a QuECHERs sample purification column according to the present invention.

[0019] Figure 3 This is a three-dimensional cross-sectional view of the purification component of a QuECHERs sample purification column according to this utility model.

[0020] In the diagram: 1. Main column; 2. Sealing column cap; 3. Support assembly; 301. Vertical slide groove; 302. Horizontal slide groove; 303. Limiting slider; 304. Mounting ring; 305. Support column rod; 4. Purification assembly; 401. Copper catalyst layer; 402. Molecular sieve layer; 403. Activated carbon layer; 404. Microporous filter membrane layer; 405. First snap-fit ​​ring; 406. Mounting docking groove; 407. Rubber sealing ring; 408. Second snap-fit ​​ring. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figure 1 and Figure 2As shown, a QuECHERs sample purification column includes a main column 1 and a support assembly 3. A sealing column cap 2 is connected to the upper end of the main column 1. The support assembly 3 is disposed outside the main column 1, and includes a vertical groove 301, a horizontal groove 302, a limiting slider 303, a mounting ring 304, and a support rod 305. Horizontal grooves 302 are formed at both ends of the vertical groove 301, and the limiting slider 303 is connected inside the vertical groove 301. An installation ring 304 is provided on the outside of the 303, and support columns 305 are added on both sides of the installation ring 304. The internal dimensions of the vertical slide groove 301 are adapted to the external dimensions of the limiting slider 303, and the limiting slider 303 is slidably connected to the main column 1 through the vertical slide groove 301. The internal dimensions of the installation ring 304 are adapted to the external dimensions of the main column 1, and the inner wall of the installation ring 304 is tightly fitted to the outside of the main column 1. Two support columns 305 are provided, and the two support columns... The rod 305 is symmetrically arranged on both sides of the lower end of the mounting ring 304 along the central axis of the front of the mounting ring 304. The limiting slider 303 is limited and installed inside the main column 1 by the vertical sliding grooves 301 opened on both sides of the main column 1. The vertical sliding grooves 301 allow the limiting slider 303 to slide vertically inside the main column 1, and drive the mounting ring 304 installed outside the limiting slider 303 to move accordingly outside the main column 1. At the same time, the internal dimensions of the transverse sliding groove 302 are adapted to the external dimensions of the limiting slider 303. Thus, when the limiting slider 303 slides counterclockwise into the upper transverse sliding groove 302, the supporting rod 305 can be limited outside the main column 1. When the limiting slider 303 slides counterclockwise into the lower transverse sliding groove 302, the supporting rod 305 is higher than the bottom of the main column 1, thus providing stable support for the main column 1. This avoids the need to use external tools to vertically place the purification column, improving the flexibility and dynamism of the sample purification column during use.

[0023] like Figure 1 and Figure 3As shown, a purification component 4 is installed inside the main column 1. The purification component 4 includes a copper catalyst layer 401, a molecular sieve layer 402, an activated carbon layer 403, and a microporous filter membrane layer 404. The molecular sieve layer 402 is disposed below the copper catalyst layer 401, and the activated carbon layer 403 is disposed below the molecular sieve layer 402. The microporous filter membrane layer 404 is disposed at the lower end of the activated carbon layer 403. The purification component 4 also includes a first snap-fit ​​ring 405, a mounting docking groove 406, a rubber sealing ring 407, and a second snap-fit ​​ring 408. A first snap-fit ​​ring 405 is added to the upper part of the main column 1, and an installation docking groove 406 is opened at the top of the main column 1. A rubber sealing ring 407 is connected inside the installation docking groove 406. A second snap-fit ​​ring 408 is added to the lower part of the outer side of the sealing column cover 2. A copper catalyst layer 401 and an activated carbon layer 403 are respectively arranged on the upper and lower sides of the molecular sieve layer 402, and the molecular sieve layer 402 is arranged and confined between the copper catalyst layer 401 and the activated carbon layer 403. The internal dimensions of the installation docking groove 406 are consistent with the rubber sealing ring 407. The external dimensions of the ring 407 are compatible, and the rubber sealing ring 407 is connected to the main column 1 through the mounting docking groove 406. The copper catalyst layer 401 is installed into the lower part of the main column 1 by snap-fit. The copper catalyst layer 401 removes organic matter and heavy metal ions from the sample, reducing the degree of sample contamination. At the same time, the molecular sieve layer 402 is a porous synthetic material that can further purify the sample. The activated carbon layer 403, together with the microporous filter membrane layer 404, adsorbs and filters organic matter in the sample, thereby improving the purification efficiency of the sample. The internal dimensions of the mounting docking groove 406 at the top of the main column 1 are compatible with the external dimensions of the rubber sealing ring 407. Thus, when the sealing column cap 2 is installed with the main column 1, the rubber sealing ring 407 and the mounting docking groove 406 improve the sealing of the connection. After the connection is completed, the first snap-fit ​​ring 405 snaps into the lower part of the second snap-fit ​​ring 408, thereby efficiently sealing the upper part of the main column 1 and improving the overall practicality and efficiency of the sample purification column.

[0024] In summary, when using this QuECHERs sample purification column, the copper catalyst layer 401 is first installed into the lower part of the main column 1 via a snap-fit ​​connection. The copper catalyst layer 401 removes organic matter and heavy metal ions from the sample. Simultaneously, the molecular sieve layer 402 further purifies the sample. The activated carbon layer 403, in conjunction with the microporous filter membrane layer 404, adsorbs and filters organic matter from the sample. When the sealing column cap 2 is installed with the main column 1, the rubber sealing ring 407, in conjunction with the installation docking groove 406, improves the sealing of the connection. After docking, the first snap-fit ​​ring 405 snaps into the second snap-fit ​​ring. Below the connecting ring 408, the upper end of the main column 1 is efficiently sealed. Then, the vertical slide groove 301 is used to make the limiting slider 303 slide vertically inside the main column 1, and drive the mounting ring 304 installed outside the limiting slider 303 to move accordingly outside the main column 1. At the same time, when the limiting slider 303 slides counterclockwise into the lower horizontal slide groove 302, the support column rod 305 is higher than the bottom of the main column 1, thereby providing stable support for the main column 1. This avoids the need to use external tools to vertically place the purification column, improving the flexibility and dynamism of the sample purification column during use.

[0025] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A QuECHERs sample purification column, comprising a main column (1) and a support assembly (3), characterized in that, The main column (1) is connected to a sealing column cap (2) at its upper end. The main column (1) is provided with a support assembly (3) on its exterior. The support assembly (3) includes a vertical slide groove (301), a horizontal slide groove (302), a limiting slider (303), an mounting ring (304), and a support rod (305). The vertical slide groove (301) has horizontal slide grooves (302) at both ends on its exterior. The vertical slide groove (301) is connected to a limiting slider (303) inside its exterior. The limiting slider (303) is provided with a mounting ring (304) outside its exterior. Support rods (305) are added to both sides of the mounting ring (304). The main column (1) is provided with a purification assembly (4).

2. The QuECHERs sample purification column according to claim 1, characterized in that, The internal dimensions of the vertical slide groove (301) are adapted to the external dimensions of the limiting slider (303), and the limiting slider (303) is slidably connected to the main column (1) through the vertical slide groove (301).

3. A QuECHERs sample purification column according to claim 1, characterized in that, The internal dimensions of the mounting ring (304) are adapted to the external dimensions of the main column (1), and the inner wall of the mounting ring (304) is tightly fitted to the outside of the main column (1).

4. A QuECHERs sample purification column according to claim 1, characterized in that, The number of the support column (305) is two, and the two support column (305) are symmetrically arranged on both sides of the lower end of the mounting ring (304) with respect to the central axis of the front of the mounting ring (304).

5. A QuECHERs sample purification column according to claim 1, characterized in that, The purification component (4) includes a copper catalyst layer (401), a molecular sieve layer (402), an activated carbon layer (403), and a microporous filter membrane layer (404). The molecular sieve layer (402) is disposed below the copper catalyst layer (401), and the activated carbon layer (403) is disposed below the molecular sieve layer (402). The microporous filter membrane layer (404) is disposed at the lower end of the activated carbon layer (403).

6. A QuECHERs sample purification column according to claim 5, characterized in that, The purification component (4) further includes a first snap ring (405), an installation docking groove (406), a rubber sealing ring (407), and a second snap ring (408). The upper part of the main column (1) is provided with a first snap ring (405), and the top of the main column (1) is provided with an installation docking groove (406), and the installation docking groove (406) is connected to a rubber sealing ring (407). The lower part of the sealing column cover (2) is provided with a second snap ring (408).

7. A QuECHERs sample purification column according to claim 6, characterized in that, The molecular sieve layer (402) is provided with a copper catalyst layer (401) and an activated carbon layer (403) on its upper and lower sides, respectively, and the molecular sieve layer (402) is disposed and confined between the copper catalyst layer (401) and the activated carbon layer (403).

8. A QuECHERs sample purification column according to claim 6, characterized in that, The internal dimensions of the mounting docking groove (406) are adapted to the external dimensions of the rubber sealing ring (407), and the rubber sealing ring (407) is connected to the main column (1) through the mounting docking groove (406).

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