Large-volume multi-channel solid-phase extraction device

Abstract

The utility model relates to the field of solid-phase extraction devices, and discloses a large-volume multi-channel solid-phase extraction device which comprises a vacuum box and a placing disc, the placing disc is arranged at the top end of the vacuum box, a cover plate is fixedly connected to the top end of the vacuum box, and a vacuum pipe is fixedly connected to the front portion of the side wall of the vacuum box. A plurality of extraction pipes are arranged at the top end of the cover plate in a linear array mode, four supporting rods are arranged at the bottom end of the containing disc in a rectangular array mode, liquid storage pipes are arranged on the inner side walls of the containing holes respectively, and liquid injection pipes are fixedly connected to the top ends of the liquid storage pipes. The bottom ends of the liquid storage pipes are fixedly connected with valves, and the bottom ends of the valves are fixedly connected with containing pipes correspondingly. According to the large-volume multi-channel solid-phase extraction device provided by the utility model, large-volume samples can be stored and taken by arranging the liquid storage pipe, and meanwhile, the overall leakproofness of the device can be effectively improved by utilizing the fixing block and the mounting pipe.

Description

Technical Field

[0001] The utility model relates to the field of solid phase extraction devices, in particular to a large-volume multi-channel solid phase extraction device. Background Art

[0002] Phase extraction is a sample pretreatment technology developed in recent years. It is developed by combining liquid-solid extraction columns and liquid chromatography technology. It is mainly used for sample separation, purification and concentration. Compared with traditional liquid-liquid extraction, it can improve the recovery rate of analytes, separate analytes from interfering components more effectively, reduce sample pretreatment process, and is simple to operate, time-saving and labor-saving.

[0003] Although the prior art separates, purifies and concentrates samples through extraction devices, the solid phase extraction device has the problem of small sample volume, resulting in the environmental sample volume often exceeding 1L, requiring a large volume sample container. Therefore, the technicians in this field provide a large volume multi-channel solid phase extraction device to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a large-volume multi-channel solid-phase extraction device, which provides a large-volume multi-channel solid-phase extraction device that can store and access large-volume samples by arranging a liquid storage tube, and can effectively improve the overall airtightness of the device by using a fixed block and a mounting tube.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large-volume multi-channel solid-phase extraction device, comprising a vacuum box and a placement plate, the placement plate is arranged at the top of the vacuum box, the top of the vacuum box is fixedly connected to a cover plate, the front side wall of the vacuum box is fixedly connected to a vacuum tube, the rear side wall of the vacuum box is fixedly connected to a connecting tube, the other end of the connecting tube is fixedly connected to a pressure gauge, the top of the cover plate is linearly arrayed with a plurality of extraction tubes, and the tops of the plurality of extraction tubes are respectively fixedly connected to mounting tubes;

[0006] Through the above technical solution, by setting fixed blocks in multiple extraction tubes, the extraction tubes can be connected to the liquid storage tube using the fixed blocks, thereby avoiding sample leakage during the extraction process and greatly improving the overall airtightness of the device.

[0007] Furthermore, the top of the placement plate is provided with a plurality of placement holes in a linear array, the bottom of the placement plate is provided with four support rods in a rectangular array, the inner side walls of the plurality of placement holes are respectively provided with liquid storage tubes, the tops of the plurality of liquid storage tubes are fixedly connected with liquid injection tubes, the bottoms of the plurality of liquid storage tubes are fixedly connected with valves, and the bottoms of the plurality of valves are respectively fixedly connected with placement tubes;

[0008] Through the above technical solution, by setting a placement tray and using the placement tray to place multiple liquid storage tubes, by setting multiple large-capacity liquid storage tubes, it can be used to store larger volumes of samples, effectively improving the efficiency of staff during extraction, and by setting a valve in the liquid storage tube, the opening and closing of the valve can be used to control the liquid storage tube to perform extraction and washing operations, effectively simplifying the extraction workflow and making the operation of the staff more convenient.

[0009] Furthermore, a sealing gasket is provided at the bottom end of the inner side wall of the cover plate;

[0010] Through the above technical solution, the overall airtightness of the device is effectively improved.

[0011] Furthermore, the bottom ends of the four support rods are respectively fixedly connected to the top end of the cover plate;

[0012] Through the above technical solution, the overall stability of the device is effectively improved.

[0013] Furthermore, the plurality of installation tubes are rubber tubes, and the plurality of placement tubes are respectively adapted to the installation tubes;

[0014] The above technical solution can effectively prevent sample leakage.

[0015] Further, one end of the connecting pipe is in communication with the interior of the vacuum box, and the vacuum pipes are in communication with the interior of the vacuum box respectively;

[0016] Through the above technical solution, the vacuum box is effectively connected to the vacuum pump.

[0017] Furthermore, the liquid injection tube is connected to the inside of the liquid storage tube;

[0018] Through the above technical solution, the sample is effectively filled.

[0019] Furthermore, the plurality of extraction tubes are respectively connected to the interior of the vacuum box;

[0020] Through the above technical solution, the extracted solution is effectively introduced into the vacuum box.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, a placement tray is provided, and a plurality of liquid storage tubes are placed on the placement tray. By providing a plurality of large-capacity liquid storage tubes, a larger volume of samples can be stored, thereby effectively improving the efficiency of the staff during extraction.

[0023] 2. In the utility model, by arranging fixed blocks in a plurality of extraction tubes, the extraction tubes can be connected with the liquid storage tubes by using the fixed blocks, thereby avoiding leakage of samples during the extraction process and greatly improving the overall airtightness of the device.

[0024] 3. In the utility model, by arranging a valve in the liquid storage tube, the opening and closing of the valve can be used to control the liquid storage tube to perform extraction and washing operations, thereby effectively simplifying the extraction workflow and making the operation of the staff more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of a large-volume multi-channel solid phase extraction device proposed by the utility model;

[0026] Figure 2 This is a front view of a large-volume multi-channel solid phase extraction device proposed by the utility model;

[0027] Figure 3 This is a side view of a large-volume multi-channel solid phase extraction device proposed by the utility model;

[0028] Figure 4 This is a top view of a large-volume multi-channel solid-phase extraction device proposed by the utility model.

[0029] Legend:

[0030] 1. Vacuum box; 2. Cover plate; 3. Extraction tube; 4. Placement hole; 5. Liquid injection tube; 6. Liquid storage tube; 7. Placement plate; 8. Support rod; 9. Pressure gauge; 10. Connecting tube; 11. Vacuum tube; 12. Valve; 13. Installation tube; 14. Fixing block; 15. Placement tube. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-4The utility model provides an embodiment: a large-volume multi-channel solid-phase extraction device, comprising a vacuum box 1 and a placement plate 7, the placement plate 7 is arranged at the top of the vacuum box 1, the top of the vacuum box 1 is fixedly connected with a cover plate 2, the front side wall of the vacuum box 1 is fixedly connected with a vacuum tube 11, the rear side wall of the vacuum box 1 is fixedly connected with a connecting pipe 10, the other end of the connecting pipe 10 is fixedly connected with a pressure gauge 9, the top of the cover plate 2 is linearly arrayed with a plurality of extraction tubes 3, the tops of the plurality of extraction tubes 3 are respectively fixedly connected with mounting tubes 13, by arranging fixing blocks 14 in the plurality of extraction tubes 3, the fixing blocks 14 can be used to connect the extraction tubes 3 with the liquid storage tube 6, so as to avoid leakage of samples during the extraction process, thereby greatly improving the overall airtightness of the device.

[0033] The top of the placement plate 7 has a plurality of placement holes 4 in a linear array, the bottom of the placement plate 7 has four support rods 8 in a rectangular array, the inner walls of the plurality of placement holes 4 are respectively provided with liquid storage tubes 6, the tops of the plurality of liquid storage tubes 6 are fixedly connected with liquid injection tubes 5, the bottoms of the plurality of liquid storage tubes 6 are fixedly connected with valves 12, and the bottoms of the plurality of valves 12 are respectively fixedly connected with placement tubes 15. By providing the placement plate 7, the placement plate 7 is utilized to place a plurality of liquid storage tubes 6. By providing a plurality of large-capacity liquid storage tubes 6, a larger volume of samples can be stored, which effectively improves the efficiency of the staff during extraction. By providing the valve 12 in the liquid storage tube 6, the opening and closing of the valve 12 can be used to control the liquid storage tube 6 for extraction and washing operations, which effectively simplifies the extraction workflow and makes the operation of the staff more convenient.

[0034] A sealing gasket is provided at the bottom end of the inner wall of the cover plate 2, the bottom ends of the four support rods 8 are fixedly connected to the top of the cover plate 2, the plurality of mounting tubes 13 are rubber tubes, and the plurality of placement tubes 15 are respectively adapted to the mounting tubes 13, one end of the connecting tube 10 is connected to the interior of the vacuum box 1, the vacuum tubes 11 are respectively connected to the interior of the vacuum box 1, the injection tube 5 is connected to the interior of the liquid storage tube 6, and the plurality of extraction tubes 3 are respectively connected to the interior of the vacuum box 1.

[0035] Working principle: by setting a placement tray 7, and using the placement tray 7 to place multiple liquid storage tubes 6, by setting multiple large-capacity liquid storage tubes 6, it can be used to store samples of larger volumes, effectively improving the efficiency of the staff during extraction, by setting a fixed block 14 in multiple extraction tubes 3, the extraction tube 3 can be connected to the liquid storage tube 6 by using the fixed block 14, avoiding leakage of samples during the extraction process, greatly improving the overall airtightness of the device, by setting a valve 12 in the liquid storage tube 6, the opening and closing of the valve 12 can control the liquid storage tube 6 to perform extraction and washing operations, effectively simplifying the extraction workflow, making the staff's operation more convenient.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A large-volume multi-channel solid phase extraction device, comprising a vacuum box (1) and a placement plate (7), wherein the placement plate (7) is arranged on the top of the vacuum box (1), characterized in that: The top of the vacuum box (1) is fixedly connected to a cover plate (2), the front side wall of the vacuum box (1) is fixedly connected to a vacuum tube (11), the rear side wall of the vacuum box (1) is fixedly connected to a connecting tube (10), the other end of the connecting tube (10) is fixedly connected to a pressure gauge (9), the top of the cover plate (2) is provided with a plurality of extraction tubes (3) in a linear array, and the tops of the plurality of extraction tubes (3) are respectively fixedly connected to mounting tubes (13).

2. A large-volume multi-channel solid phase extraction device according to claim 1, characterized in that: The top of the placement plate (7) has a plurality of placement holes (4) in a linear array, the bottom of the placement plate (7) has four support rods (8) in a rectangular array, the inner walls of the plurality of placement holes (4) are respectively provided with liquid storage tubes (6), the tops of the plurality of liquid storage tubes (6) are fixedly connected to liquid injection tubes (5), the bottoms of the plurality of liquid storage tubes (6) are fixedly connected to valves (12), and the bottoms of the plurality of valves (12) are respectively fixedly connected to placement tubes (15).

3. A large-volume multi-channel solid phase extraction device according to claim 1, characterized in that: A sealing gasket is provided at the bottom end of the inner side wall of the cover plate (2).

4. A large-volume multi-channel solid phase extraction device according to claim 2, characterized in that: The bottom ends of the four support rods (8) are respectively fixedly connected to the top end of the cover plate (2).

5. The large-volume multi-channel solid phase extraction device according to claim 2, characterized in that: The plurality of installation tubes (13) are all rubber tubes, and the plurality of placement tubes (15) are respectively adapted to fit the installation tubes (13).

6. The large-volume multi-channel solid phase extraction device according to claim 1, characterized in that: One end of the connecting pipe (10) is in communication with the interior of the vacuum box (1), and the vacuum pipes (11) are respectively in communication with the interior of the vacuum box (1).

7. A large-volume multi-channel solid phase extraction device according to claim 2, characterized in that: The liquid injection tube (5) is internally connected to the liquid storage tube (6).

8. The large-volume multi-channel solid phase extraction device according to claim 1, characterized in that: The plurality of extraction tubes (3) are respectively connected to the interior of the vacuum box (1).

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