Rapid detection test strip for picoxystrobin

Abstract

The utility model provides a picoxystrobin rapid detection test strip, which comprises a test strip body and a plastic film wrapped on the outer side of the test strip body, the test strip body comprises a bottom plate, and a sample pad, a combination pad, a detection film and a water absorption pad which are arranged on the bottom plate and are in lap joint in sequence, the plastic film is composed of a first end section, a middle section and a second end section which are arranged in sequence, the top surface of the first end section is attached to the straight section of the sample pad, a liquid dropping hole is formed in the middle of the top surface of the first end section, the top surface of the middle section is overhead at three lap joint positions, and the top surface of the second end section is provided with a liquid dropping hole. The top face of the second end section is attached to the straight section of the water absorption pad. The picoxystrobin rapid detection test strip has the advantages of being simple in structure, not prone to being polluted, moderate in production cost and easy and convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of pesticide residue detection technology, specifically to a rapid test strip for azoxystrobin. Background Technology

[0002] Azoxystrobin is a fungicide with good systemic properties. It can be absorbed by the leaves, stems and other parts of plants and translocated upwards to various parts of the plant, thus playing a comprehensive role in the prevention and control of pathogens. However, due to its special chemical structure and physical properties, azoxystrobin can adhere firmly to the plant surface after spraying, making it difficult to remove and easily leading to pesticide residues.

[0003] For the detection of azoxystrobin residues on agricultural products, test strips are commonly used, such as... Figure 1 As shown, the main structure of a traditional test strip consists of a base plate 1 and a sample pad 2, a conjugate pad 3, a detection membrane 4, and an absorbent pad 5 laid on the base plate 1 in sequence. When using it, the agricultural product needs to be cut into pieces, soaked in a solvent for extraction, and then the extract is dropped onto the sample pad 2. The extract gradually migrates to the absorbent pad 5, first specifically binding to the labeled probe on the conjugate pad 3, and then reacting with the azoxystrobin antigen on the detection membrane 4 to achieve the detection purpose.

[0004] In the existing technology, most test strips adopt an exposed structure, which is easily contaminated during use, leading to failure or inaccurate test results. Some test strips also have a plastic shell on the outside, with a dropper opening on the plastic shell corresponding to the sample pad 2 and a viewing window corresponding to the detection membrane 4. Although this can provide good protection for the test strip, the production cost is high.

[0005] In order to solve the above problems, people have been seeking an ideal technological solution. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a rapid test strip for azoxystrobin that is simple in structure, not easily contaminated, has moderate production costs, and is easy to operate.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is: a rapid test strip for azoxystrobin, comprising a test strip body and a plastic film wrapped around the outside of the test strip body. The test strip body includes a base plate and a sample pad, a conjugate pad, a detection membrane, and an absorbent pad that are disposed on the base plate and overlapped in sequence. The plastic film is composed of a first end section, a middle section, and a second end section arranged in sequence. The top surface of the first end section is fitted with the straight section of the sample pad. A drip hole is opened in the middle of the top surface of the first end section. The top surface of the middle section is suspended at three overlapping positions. The top surface of the second end section is fitted with the straight section of the absorbent pad.

[0008] Based on the above, a funnel-shaped guide nozzle is provided on the drip hole.

[0009] Based on the above, both the outer ends of the first end segment and the outer ends of the second end segment are open.

[0010] Based on the above, the middle section and the second end section are integrally formed, while the first end section and the middle section are separate structures, and the bottom surface of the first end section is provided with an easy-tear structure.

[0011] Based on the above, the easy-tear structure includes a cut on the bottom surface of the first end segment and adhesive tape pasted on the cut. One end of the adhesive tape extends out of the bottom plate to form an operating part so as to tear the adhesive tape.

[0012] This invention has substantial features and advancements compared to existing technologies. Specifically, by wrapping the test strip body with a plastic film, the invention effectively protects the test strip from contamination without affecting observation. Utilizing the non-reactive nature of the sample pad and absorbent pad, the first and second end segments are attached to the test strip without affecting the diffusion of the extract. The middle segment is suspended at the overlap, ensuring the binding of the extract with the reaction reagent. This structure, with attached ends and a suspended middle, facilitates one-time wrapping and lowers production costs. It boasts advantages such as simple structure, resistance to contamination, moderate production cost, and easy operation.

[0013] Furthermore, the funnel-shaped guide nozzle allows the extract to be introduced into the drop hole, making the drop operation easier; both the outer ends of the first end segment and the outer ends of the second end segment are open, and the test strip body is breathable at both ends, which facilitates the diffusion of the extract along its length.

[0014] Furthermore, when there is no pipette to draw the extract, the easy-tear structure allows the first end section to be removed, and the sample pad can be directly inserted into the extract for testing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of a traditional test strip in the background technology.

[0016] Figure 2 This is a cross-sectional schematic diagram of the rapid test strip for azoxystrobin in this utility model.

[0017] Figure 3 This is a top view of the rapid test strip for azoxystrobin in this utility model.

[0018] Figure 4 This is a bottom view of the rapid test strip for azoxystrobin in this utility model.

[0019] In the diagram: 1. Base plate; 2. Sample pad; 3. Binding pad; 4. Detection membrane; 5. Absorbent pad; 6. First end section; 7. Middle section; 8. Second end section; 9. Drop hole; 10. Overlap position; 11. Trumpet-shaped nozzle; 12. Cut; 13. Adhesive tape; 14. Operating part. Detailed Implementation

[0020] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0021] like Figure 2-4 As shown, a rapid test strip for azoxystrobin includes a test strip body, which includes a base plate 1 and a sample pad 2, a conjugate pad 3, a detection membrane 4 and an absorbent pad 5 disposed on the base plate 1 and sequentially overlapped. This part adopts the structure of a common test strip on the market.

[0022] To prevent contamination of the test strip, the azoxystrobin rapid test strip also includes a plastic film wrapped around the outside of the test strip body. The plastic film consists of a first end segment 6, a middle segment 7, and a second end segment 8 arranged sequentially. The top surface of the first end segment 6 is fitted with the straight section of the sample pad 2, and a drop hole 9 is opened in the middle of the top surface of the first end segment 6. A funnel-shaped guide nozzle 11 is provided on the drop hole. The top surface of the middle segment 7 is suspended on three overlapping positions 10. The top surface of the second end segment 8 is fitted with the straight section of the absorbent pad 5. The outer ends of the first end segment 6 and the second end segment 8 are both open to facilitate the diffusion of the extract in the length direction.

[0023] In practical use, the fruit and vegetable extract is dripped into the funnel-shaped guide nozzle 11 using a pipette. The extract seeps into the sample pad 2 from the drip hole 9. Under the action of the absorbent pad 5, the extract gradually migrates to the absorbent pad 5, first specifically binding to the labeled probe on the binding pad 3, and then reacting with the azoxystrobin antigen on the detection membrane 4. The detection results are observed through the intermediate section 7.

[0024] To facilitate testing when a pipette is unavailable on-site, the middle section 7 and the second end section 8 are integrally formed, while the first end section 6 and the middle section 7 are separate structures. A cut 12 is provided on the bottom surface of the first end section 6, and adhesive tape 13 is attached to the cut 12. One end of the adhesive tape 13 extends out of the bottom plate 1 to form an operating part 14, so that the adhesive tape 13 can be torn off. The cut 12 and the adhesive tape 13 form an easy-tear structure, allowing the first end section 6 to be removed, and the sample pad 2 can be directly inserted into the extraction liquid for testing.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A rapid test strip for azoxystrobin, comprising a test strip body, wherein the test strip body includes a base plate and a sample pad, a conjugate pad, a detection membrane, and an absorbent pad disposed on the base plate and sequentially overlapped thereon, characterized in that: It also includes a plastic film wrapped around the outside of the test strip body. The plastic film consists of a first end section, a middle section and a second end section arranged in sequence. The top surface of the first end section is attached to the straight section of the sample pad. A drip hole is opened in the middle of the top surface of the first end section. The top surface of the middle section is suspended at three overlapping positions. The top surface of the second end section is attached to the straight section of the absorbent pad.

2. The rapid test strip for azoxystrobin according to claim 1, characterized in that: The drip hole is equipped with a funnel-shaped guide nozzle.

3. The rapid test strip for azoxystrobin according to claim 2, characterized in that: Both the outer ends of the first end segment and the outer ends of the second end segment are open.

4. The rapid test strip for azoxystrobin according to any one of claims 1-3, characterized in that: The middle section and the second end section are integrally formed, while the first end section and the middle section are separate structures. The bottom surface of the first end section is provided with an easy-tear structure.

5. The rapid test strip for azoxystrobin according to claim 4, characterized in that: The easy-tear structure includes a cut on the bottom surface of the first end segment and adhesive tape pasted on the cut. One end of the adhesive tape extends out of the bottom plate to form an operating part so as to tear the adhesive tape.

Images