Chromatographic fumonisins test strip

Abstract

The utility model relates to the technical field of test strips, and discloses a chromatography type fumonisins test strip which comprises a main body shell, a limiting groove is formed in the side wall of an inner cavity of the main body shell, a filter is fixedly connected to the side wall of the inner cavity of the main body shell, a first filtering hole is formed in the side face of the filter, and a second filtering hole is formed in the side face of the filter. A filter block is fixedly connected to an inner cavity of the main body shell, second filter holes are formed in the side face of the filter block, a liquid retention cavity is formed in the side face of the filter block, a liquid inlet is formed in the side face of the liquid retention cavity, and a liquid outlet pipe is fixedly connected to the side face of the liquid inlet. According to the device, grains such as corn and the like can be directly ground and fully and uniformly mixed with a diluent, then the mixture is directly poured into a filter, an extrusion block is used for extruding, residues are filtered and separated, separated liquid can directly flow into a liquid outlet pipe and then is dropped into a sample adding hole, and the situation that the liquid needs to be dropped into a sample adding hole through a suction pipe after filtering is conveniently omitted.

Description

Technical Field

[0001] The utility model relates to the technical field of test strips, and more specifically to a chromatographic fumonisin test strip. Background Art

[0002] Toxin test strips have a wide range of uses in many fields and are mainly used to detect whether a sample contains specific toxins or harmful substances. Fumonisin widely exists in corn and its products, and the situation of food contamination is prevalent worldwide. Fumonisin is carcinogenic and cancer-promoting to humans, livestock, etc., mainly damaging liver and kidney functions and causing various animal diseases, such as equine leukoencephalomalacia and porcine pulmonary edema. In addition, it is also related to the high incidence of esophageal cancer in some regions. Fumonisin test strips can quickly detect the content of fumonisin in food, helping food producers, processors, regulatory agencies, and consumers ensure the safety of food, which is crucial for preventing health problems caused by consuming contaminated food. Chromatography technology is a rapid detection method based on the principle of specific binding of antigen and antibody. Toxin test strips utilize this technology. Through special nanomaterials and capillary action, the toxin in the test solution binds to the specific antibody on the test strip, thereby achieving rapid detection of the toxin. For example, mycotoxin test strips are used to detect mycotoxins such as aflatoxin, vomitoxin, and zearalenone in grains. These toxins are harmful to human health, and their content can be quickly and accurately detected through the test strip to ensure the safety of grains.

[0003] Deficiencies of the prior art: Currently, most test strips are almost individually packaged, with auxiliary diluents, test tubes, and other items scattered and packed together. It is easy for them to fall off when taken together after disassembling. Moreover, when a single person uses a test card for detection, they need to hold multiple items, which is not easy to operate for detection. If test tubes and other things are placed on the table or the ground, they are likely to get dirty, resulting in inaccurate inspection. On the other hand, the collected sample needs to be put into a test tube and mixed with the diluent and waited for dozens of minutes, and then the residue and liquid filtration are rather troublesome. If held for a long time, it may accidentally spill out, and it is also inconvenient to operate other items while holding it all the time. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a chromatographic fumonisin test strip to solve the problems existing in the above background art.

[0005] To achieve the above object, the present utility model provides the following technical solution: A chromatographic fumonisin test strip, comprising a main body shell, wherein a limiting groove is provided on the inner cavity side wall of the main body shell, a filter is fixedly connected to the inner cavity side wall of the main body shell, a first filter hole is provided on the side surface of the filter, a filter block is fixedly connected to the inner cavity of the main body shell, a second filter hole is provided on the side surface of the filter block, a liquid retention cavity is provided on the side surface of the filter block, a liquid inlet is provided on the side surface of the liquid retention cavity, and a liquid outlet pipe is fixedly connected to the side surface of the liquid inlet.

[0006] Further, a test strip cover is movably connected to the side surface of the main body shell, a threaded groove is provided at the bottom end of the main body shell, and a pressing cap is movably connected to the top end of the main body shell.

[0007] Further, an anti-slip block is fixedly connected to the top end of the pressing cap, a groove is provided on the inner cavity side wall of the pressing cap, a pressing block is fixedly connected to the bottom end of the pressing cap, and a rubber sealing ring is fixedly connected to the side surface of the pressing block.

[0008] Further, a diluent tube is threadedly connected to the inner circle side wall of the threaded groove, a thread is provided on the side surface of the diluent tube, and a tube cap is movably sleeved at the bottom end of the diluent tube.

[0009] Further, a sample adding hole is provided at the top end of the test strip cover, an observation groove is provided at the top end of the test strip cover, and a test strip is fixedly connected to the bottom end of the test strip cover.

[0010] Further, a fixing block is fixedly connected to the bottom end of the test strip cover, and a fixing hole is provided on the side surface of the main body shell.

[0011] The technical effects and advantages of the present utility model:

[0012] 1. By providing a filter, a filter block and a pressing block, the present utility model is conducive to directly crushing corn and other grains and fully mixing them with the diluent, and then directly pouring them into the filter. Using the pressing block to squeeze, the residue is filtered and separated, which is convenient for the operator without the need to use other auxiliary tools for filtration, and is simpler, faster and more convenient.

[0013] 2. By providing a liquid outlet pipe, the present utility model is conducive to directly crushing corn and other grains and fully mixing them with the diluent, and then directly pouring them into the filter. Using the pressing block to squeeze, the residue is filtered and separated, and the separated liquid will directly flow into the liquid outlet pipe and then drip into the sample adding hole, which is convenient to save the need to use a pipette to drip the liquid after filtration. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 Schematic diagram of the overall internal structure of the present utility model;

[0016] Figure 3 Schematic diagram of the overall structure of the extrusion cap of the present utility model;

[0017] Figure 4 Schematic diagram of the overall structure of the diluent tube of the present utility model;

[0018] Figure 5 Schematic diagram of the structure of the test strip cover of the present utility model.

[0019] Reference numerals are: 1, main body shell; 101, liquid outlet pipe; 102, liquid inlet; 103, liquid retention cavity; 104, filter block; 105, second filter hole; 106, filter; 107, first filter hole; 108, limit groove; 2, diluent tube; 201, thread; 202, thread groove; 203, tube cap; 3, extrusion cap; 301, anti-slip block; 302, groove; 303, extrusion block; 304, rubber sealing ring; 4, test strip cover; 401, sample addition hole; 402, test strip; 403, observation groove; 404, fixing block; 405, fixing hole. Detailed implementation manners

[0020] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the present utility model. In addition, the forms of each structure described in the following implementation manners are merely examples, and a chromatographic fumonisin test strip related to the present utility model is not limited to the structures described in the following implementation manners. All other implementation manners obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0021] Refer to Figures 1 to 5, the present utility model provides a chromatographic fumonisin test strip, including a main body case 1, characterized in that: a limiting groove 108 is provided on the inner cavity side wall of the main body case 1, a filter 106 is fixedly connected to the inner cavity side wall of the main body case 1, a first filter hole 107 is provided on the side of the filter 106, a filter block 104 is fixedly connected to the inner cavity of the main body case 1, a second filter hole 105 is provided on the side of the filter block 104, a liquid retention cavity 103 is provided on the side of the filter block 104, a liquid inlet 102 is provided on the side of the liquid retention cavity 103, and a liquid outlet pipe 101 is fixedly connected to the side of the liquid inlet 102. It is beneficial to squeeze the filter 106, and the first filter hole 107 provided on the filter 106 will filter most of the sample debris. The filtered diluent will flow to the second filter hole 105, and the diluent will be filtered again through the second filter hole 105 on the filter block 104 to filter out smaller debris. Finally, the diluent flows into the liquid retention cavity 103 and then flows into the liquid inlet 102 opened at the bottom, and finally flows out through the liquid outlet pipe 101.

[0022] Among them, a test paper cover 4 is movably connected to the side of the main body case 1, a thread groove 202 is provided at the bottom end of the main body case 1, and a pressing cap 3 is movably connected to the top end of the main body case 1.

[0023] Among them, an anti-slip block 301 is fixedly connected to the top end of the pressing cap 3, a groove 302 is provided on the inner cavity side wall of the pressing cap 3, a pressing block 303 is fixedly connected to the bottom end of the pressing cap 3, and a rubber sealing ring 304 is fixedly connected to the side of the pressing block 303. It is beneficial that the rubber sealing ring is usually made of a material with strong corrosion resistance, can resist the erosion of various chemical substances such as acids, alkalis, and salts, thereby protecting the internal components of the equipment from corrosion and extending the service life of the equipment.

[0024] Among them, a diluent pipe 2 is threadedly connected to the inner circle side wall of the thread groove 202, a thread 201 is provided on the side of the diluent pipe 2, and a pipe cap 203 is movably sleeved at the bottom end of the diluent pipe 2.

[0025] Among them, a sample addition hole 401 is provided at the top end of the test paper cover 4, an observation groove 403 is provided at the top end of the test paper cover 4, and a test strip 402 is fixedly connected to the bottom end of the test paper cover 4.

[0026] Among them, a fixing block 404 is fixedly connected to the bottom end of the test paper cover 4, and a fixing hole 405 is provided on the side of the main body case 1.

[0027] Working principle of the utility model: When in use, crush the sample to be detected, open the tube cap 203. The dilution liquid tube 2 is filled with dilution liquid. Pour the crushed sample into the dilution liquid tube 2 to mix with the dilution liquid. Then cover the tube cap 203, hold the main body shell 1 by hand and shake it to fully mix the crushed sample and the dilution liquid evenly. After waiting for dozens of minutes, rotate and remove the whole dilution liquid tube 2. Then remove the extrusion cap 3 and place it aside. Open the tube cap 203 and pour the liquid mixture of the sample and the dilution liquid into the filter 106. Then align and fit the extrusion cap 3 into the limit groove 108. Then hold the whole main body shell 1 by hand, tilt the liquid outlet tube 101 upwards a little, and press the extrusion cap 3 with the thumb. At this time, the bottom of the extrusion block 303 will squeeze the dilution liquid in the filter 106. By squeezing the filter 106, the first filter holes 107 opened in the filter 106 will filter out most of the sample debris. The filtered dilution liquid will flow to the second filter holes 105, and the dilution liquid will be filtered again through the second filter holes 105 on the filter block 104 to filter out smaller debris. Finally, the dilution liquid flows into the liquid retention cavity 103 and then flows into the liquid inlet 102 opened at the bottom through the liquid retention cavity 103. Finally, according to the amount of liquid needed, control the pressing force by yourself by observing the situation of the liquid flowing out of the liquid outlet tube 101. Subsequently, the squeezed and filtered dilution liquid will be dropped into the sample adding hole 401 through the liquid outlet tube 101, and then wait for a period of time to observe the test strip 402 to judge the result.

[0028] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A chromatographic fumonisin test strip, It includes, characterized in that: it further includes: a main body shell (1), characterized in that: a limiting groove (108) is provided on the inner cavity side wall of the main body shell (1), a filter (106) is fixedly connected to the inner cavity side wall of the main body shell (1), a first filter hole (107) is provided on the side of the filter (106), a filter block (104) is fixedly connected to the inner cavity of the main body shell (1), a second filter hole (105) is provided on the side of the filter block (104), a liquid retention cavity (103) is provided on the side of the filter block (104), a liquid inlet (102) is provided on the side of the liquid retention cavity (103), and a liquid outlet pipe (101) is fixedly connected to the side of the liquid inlet (102).

2. The chromatographic fumonisin test strip according to claim 1, characterized in that: A test strip cover (4) is movably connected to the side of the main body shell (1), a threaded groove (202) is provided at the bottom end of the main body shell (1), and a pressing cap (3) is movably connected to the top end of the main body shell (1).

3. The chromatographic fumonisin test strip according to claim 2, wherein: An anti-slip block (301) is fixedly connected to the top end of the pressing cap (3), a groove (302) is provided on the inner cavity side wall of the pressing cap (3), a pressing block (303) is fixedly connected to the bottom end of the pressing cap (3), and a rubber sealing ring (304) is fixedly connected to the side of the pressing block (303).

4. The chromatographic fumonisin test strip according to claim 2, characterized in that: A diluent pipe (2) is threadedly connected to the inner circle side wall of the threaded groove (202), a thread (201) is provided on the side of the diluent pipe (2), and a pipe cap (203) is movably sleeved at the bottom end of the diluent pipe (2).

5. The chromatographic fumonisin test strip according to claim 2, characterized in that: A sample adding hole (401) is provided at the top end of the test strip cover (4), an observation groove (403) is provided at the top end of the test strip cover (4), and a test strip (402) is fixedly connected to the bottom end of the test strip cover (4).

6. The chromatographic fumonisin test strip according to claim 2, wherein: A fixing block (404) is fixedly connected to the bottom end of the test strip cover (4), and a fixing hole (405) is provided on the side of the main body shell (1).

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