Rapid detection equipment for pesticide residues and aromatic substances of fresh jasmine flowers

Abstract

The invention relates to the technical field of detection equipment, in particular to jasmine flower pesticide residue and aromatic substance rapid detection equipment which comprises a main body box, a supporting assembly and a display assembly. A pesticide residue detection module and a pesticide residue detection module are arranged in the main body box; according to the method, the pesticide residue detection function and the aromatic substance detection function are creatively integrated, the tedious process of a traditional detection mode is avoided, and one-stop rapid evaluation of the quality of the fresh jasmine flowers is achieved. Information of pesticide residues and aromatic substances can be obtained at the same time through one-time sample treatment, the detection efficiency is improved by several times compared with separated detection, the detection period is greatly shortened, and the rapid quality screening requirement in large-scale production and processing of fresh jasmine flowers is met. The height of the display assembly can be adjusted, the use comfort of operators is fully considered, the operation fatigue is effectively reduced, and the efficiency and accuracy of long-time detection work are improved; the detection result can be displayed in real time through the display.

Description

Technical Field

[0001] The invention relates to the technical field of detection equipment, and in particular to a rapid detection device for pesticide residues and aromatic substances in jasmine flowers. Background Art

[0002] As a flower with great economic value and wide application prospects, jasmine flowers play a key role in many industries such as food, cosmetics, and spices. On the one hand, as people's requirements for food safety and product quality are increasing, the residue problem caused by pesticides that may be used in the cultivation of jasmine flowers has attracted much attention. Excessive pesticide residues not only harm human health, but may also affect the quality and safety of downstream products; on the other hand, the unique aromatic substances of jasmine flowers are their core value, and different contents and types of aromatic components directly determine their application effects in various fields.

[0003] However, the current detection methods for jasmine flowers have many drawbacks. Traditional pesticide residue detection methods usually require cumbersome sample pretreatment steps, which consume a lot of time, and the equipment is expensive and complicated to operate, making it difficult to meet the needs of rapid on-site detection; and the detection of aromatic substances often relies on professional gas or liquid chromatography analysis, which also requires professional personnel to operate and has a long analysis cycle. More importantly, most of the existing detection methods separate the detection of pesticide residues and aromatic substances, which not only makes the entire detection process lengthy, but also increases the detection cost, and cannot adapt to the large-scale and efficient production and processing model of jasmine flowers. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a rapid detection device for pesticide residues and aromatic substances in jasmine flowers, which has a reasonable structural design and is convenient for promotion.

[0005] A rapid detection device for pesticide residues and aromatic substances in jasmine flowers, comprising a main box, a support component and a display component;

[0006] The main body box is provided with a pesticide residue detection module and a pesticide residue detection module; the pesticide residue detection module uses acetonitrile extraction and solid phase chromatography column purification, combined with high performance liquid chromatography to determine the thiamethoxam residue in jasmine; the aromatic substance detection module uses a nanoporous gold horseradish peroxidase sensor to quickly detect aromatic pollutants in wastewater;

[0007] The support assembly includes a side plate, the side plate is fixed to the side of the main box, the upper and lower ends of the side plate are respectively fixed with L-shaped limit plates, a column is installed between the two groups of L-shaped limit plates, an L-shaped support frame is installed on the column, and a supporting plate is fixed to the front end of the side plate;

[0008] The display assembly includes a hollow column and a display. The hollow column is a hollow column fixed on the L-shaped support frame. The hollow column is a cylindrical hollow structure. The side of the hollow column is provided with a strip groove and a plurality of serrated limit grooves connected to the strip groove; a mounting seat is fixed on the back of the display screen, and a cross bar is provided on the mounting seat. The cross bar passes through the hollow column and is located in the limit groove.

[0009] Preferably, the interior of the main box is also provided with an induced draft fan, an ice machine, an outer cylinder and an incense collecting cylinder. The incense collecting cylinder is coaxially rotatably connected to the outer cylinder. The outer cylinder is provided with a first driving assembly for driving the incense collecting cylinder to rotate. Both ends of the incense collecting cylinder are penetrated and covered with air permeable parts. The induced draft fan is connected to one end of the outer cylinder through an air supply hood. The ice machine is connected to the end of the outer cylinder away from the induced draft fan through an air supply pipe. A liquid collecting barrel is provided under the ice machine.

[0010] Preferably, the pesticide residue detection module is a tubular jasmine aroma substance extraction pretreatment device, in which absorbent cotton and jasmine flowers are alternately distributed in the tubes, and the diffusion of the aroma is accelerated by wind blowing; the aromatic substance detection module: uses a nanoporous gold horseradish peroxidase sensor to quickly detect aromatic pollutants in wastewater.

[0011] Preferably, the thiamethoxam residue in jasmine is determined by liquid chromatography, and the quantitative limits of the method for fresh jasmine and dried jasmine are 0.002 mg / kg and 0.005 mg / kg, respectively.

[0012] Preferably, a controller is further provided at the bottom of the main box, and the controller is electrically connected to the pesticide residue detection module, the pesticide residue detection module and the display respectively.

[0013] Preferably, the height of the display is adjustable.

[0014] The beneficial effects of the present invention are:

[0015] Efficient integrated detection: This invention innovatively integrates the detection of pesticide residues and aromatic substances into one, avoiding the cumbersome process of traditional detection methods and realizing a one-stop rapid evaluation of the quality of jasmine flowers. The information of pesticide residues and aromatic substances can be obtained simultaneously in one sample processing. The detection efficiency is improved several times compared with separate detection, which greatly shortens the detection cycle and meets the needs of rapid quality screening in large-scale production and processing of jasmine flowers.

[0016] Accurate and reliable test results: The pesticide residue detection module uses advanced acetonitrile extraction, solid phase chromatography column purification combined with high performance liquid chromatography technology. It has extremely high sensitivity and accuracy for the detection of common and harmful thiamethoxam residues in jasmine flowers. The quantitative limit is as low as 0.002mg / kg for fresh jasmine flowers and 0.005mg / kg for dried jasmine flowers. It can accurately control the level of pesticide residues and ensure the safety of downstream products. The aroma substance detection module uses a nanoporous gold horseradish peroxidase sensor, which can quickly respond to the complex aromatic components of jasmine flowers, accurately identify various aromatic pollutants and aroma substances, and provide a reliable basis for the aroma quality classification of jasmine flowers.

[0017] Humanized design improves operating experience: The ingenious structure of the support component not only ensures the stability of the equipment, but also provides a practical auxiliary operation platform; the height-adjustable function of the display component fully considers the operator's comfort, effectively reduces operator fatigue, and improves the efficiency and accuracy of long-term detection work; the test results can be displayed in real time on the display. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a front structural diagram of the present invention;

[0020] Figure 2 The three-dimensional Figure 1 ;

[0021] Figure 3 It is a partial structural diagram of the present invention;

[0022] Figure 4 The three-dimensional Figure 2 ;

[0023] Figure 5 It is the principle block diagram; DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] In the description of the embodiments of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invented product is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] The jasmine flower pesticide residue and aromatic substance rapid detection device of the present invention is mainly composed of a main box 100, a support assembly 200 and a display assembly 300. The main box 100 is a core bearing component, and multiple key detection and auxiliary function modules are integrated inside; the support assembly 200 provides a stable physical support for the entire device, and has certain auxiliary installation and adjustment functions; the display assembly 300 is responsible for intuitively presenting the detection results, so that the operator can obtain information in real time.

[0028] Key modules inside the main box:

[0029] Pesticide residue detection module: acetonitrile extraction and solid phase chromatography column purification are used in combination with high performance liquid chromatography to determine the thiamethoxam residue in jasmine flowers. As an excellent extraction solvent, acetonitrile can efficiently separate thiamethoxam and other pesticide components in jasmine flowers from complex plant tissues. The sample is then further purified through a solid phase chromatography column to remove impurity interference. Finally, with the help of the high-resolution separation and precise quantitative capabilities of the high performance liquid chromatography, the thiamethoxam residue is accurately determined. Its advantage is that it not only ensures the accuracy of the detection, but also greatly shortens the detection time compared to traditional pesticide residue detection methods.

[0030] Aromatic substance detection module: Use nanoporous gold horseradish peroxidase sensor to quickly detect aromatic pollutants in wastewater. Based on the unique physical and chemical properties of nanoporous gold, the sensor works synergistically with horseradish peroxidase and has extremely high sensitivity to aromatic compounds. When the aromatic substances emitted by jasmine flowers, including various aromatic components, enter the detection area, the sensor can quickly capture and generate corresponding electrical signal changes. Through specific signal conversion and analysis algorithms, the type and approximate content of the aromatic substances can be quickly determined. Compared with traditional chromatographic analysis methods, this sensor has a fast detection speed, does not require complex sample pretreatment, and can reflect the aroma characteristics of jasmine flowers in real time.

[0031] Auxiliary function module: The interior of the main box 100 is also provided with an induced draft fan, an ice machine, an outer cylinder and an incense collecting cylinder. The incense collecting cylinder is coaxially connected to the outer cylinder, and the outer cylinder is provided with a first driving assembly that drives the incense collecting cylinder to rotate. Through this structural design, during the detection process, the induced draft fan can suck the gas emitted by the jasmine flowers into the outer cylinder area. During the rotation of the incense collecting cylinder, the air-permeable parts that penetrate and cover both ends can fully collect the aromatic components in the gas. At the same time, the ice machine delivers low-temperature gas to the other end of the outer cylinder through the air supply pipe, which not only helps to condense some of the more volatile aromatic substances so that they can be better collected, but also prevents the influence of high temperature on the detection equipment and samples, and improves the detection stability. The liquid collecting bucket provided under the ice machine is used to collect the liquid produced by condensation to avoid polluting the internal environment of the equipment.

[0032] Support component detailed structure:

[0033] The support assembly 200 includes a side panel 201, which is tightly fixed to the side of the main box 100, providing a basic connection for the entire support structure. L-shaped limit plates 202 are fixed to the upper and lower ends of the side panel 201, and a column 203 is accurately installed between the two groups of L-shaped limit plates 202. An L-shaped support frame 204 is cleverly installed on the column 203. This multi-level structural design not only ensures the stability of the support, but also provides a flexible space layout for the installation of subsequent components. A support plate 205 is fixed to the front end of the side panel 201. The support plate 205 can be used to temporarily place small detection tools, sample containers, etc., which is convenient for operators to use at any time during the detection process and improve work efficiency.

[0034] Display component structure and adjustment function:

[0035] The display assembly 300 includes a hollow column 301 and a display 302. The hollow column 301 is firmly fixed on the L-shaped support frame 204. Its unique columnar hollow structure design has multiple functions. The side of the hollow column 301 is provided with a bar groove and a plurality of serrated limit grooves 303 connected to the bar groove; the back of the display screen is fixed with a mounting seat, and the mounting seat is provided with a crossbar 304, which passes through the hollow column 301 and is located in the limit groove 303. This design makes the height of the display 302 adjustable. The operator can easily adjust the display to the optimal height according to his own operating habits and actual observation needs, avoiding operator fatigue caused by poor viewing angle or long-term head-up or head-down, and further optimizing the detection experience.

[0036] Electrical control connections:

[0037] A controller is also provided at the bottom of the main box 100, and the controller is electrically connected to the pesticide residue detection module, the fragrance substance detection module and the display 302. As the "brain" of the entire device, the controller is responsible for coordinating the operation timing of each detection module, receiving and processing the detection data from the pesticide residue detection module and the fragrance substance detection module, converting it into visual information and transmitting it to the display 302. At the same time, it can also intelligently monitor and adjust the detection process according to preset parameters to ensure the accuracy and reliability of the detection results.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rapid detection device for pesticide residues and aromatic substances in jasmine flowers, characterized in that: It comprises a main body box (100), a support assembly (200) and a display assembly (300); The main box (100) is provided with a pesticide residue detection module and an aromatic substance detection module inside; the pesticide residue detection module uses acetonitrile extraction and solid phase chromatography column purification, combined with high performance liquid chromatography to determine the thiamethoxam residue in jasmine; the aromatic substance detection module uses a nanoporous gold horseradish peroxidase sensor to quickly detect aromatic pollutants in wastewater; The support assembly (200) comprises a side plate (201), the side plate (201) being fixed to the side of the main box (100), the upper and lower ends of the side plate (201) being respectively fixed with L-shaped limit plates (202), a column (203) being installed between the two groups of L-shaped limit plates (202), an L-shaped support frame (204) being installed on the column (203), and a supporting plate (205) being fixed at the front end of the side plate (201); The display assembly (300) comprises a hollow column (301) and a display (302); the hollow column (301) is a hollow column (301) fixed on the L-shaped support frame (204); the hollow column (301) is a columnar hollow structure; a side surface of the hollow column (301) is provided with a strip groove and a plurality of sawtooth-shaped limiting grooves (303) connected to the strip groove; a mounting seat is fixed on the back of the display screen; a cross bar (304) is provided on the mounting seat; the cross bar (304) passes through the hollow column (301) and is located in the limiting groove (303).

2. A rapid detection device for pesticide residues and aromatic substances in jasmine fresh flowers according to claim 1, characterized in that: The main body box (100) is also provided with an induced draft fan, an ice machine, an outer tube and an incense collecting tube inside. The incense collecting tube is coaxially rotatably connected to the outer tube. The outer tube is provided with a first driving assembly for driving the incense collecting tube to rotate. Both ends of the incense collecting tube are penetrated and covered with air-permeable parts. The induced draft fan is connected to one end of the outer tube through an air supply hood. The ice machine is connected to the end of the outer tube away from the induced draft fan through an air supply pipe. A liquid collecting bucket is provided under the ice machine.

3. A rapid detection device for pesticide residues and aromatic substances in jasmine fresh flowers according to claim 1, characterized in that: The pesticide residue detection module is a tubular jasmine aroma substance extraction pretreatment device, in which absorbent cotton and jasmine flowers are alternately distributed in the tube, and the diffusion of the aroma is accelerated by wind blowing; the aromatic substance detection module: uses a nanoporous gold horseradish peroxidase sensor to quickly detect aromatic pollutants in wastewater.

4. A rapid detection device for pesticide residues and aromatic substances in jasmine fresh flowers according to claim 1, characterized in that: The thiamethoxam residue in jasmine was determined by liquid chromatography, and the quantitative limits of the method were 0.002 mg / kg and 0.005 mg / kg for fresh jasmine and dried jasmine, respectively.

5. A rapid detection device for pesticide residues and aromatic substances in jasmine fresh flowers according to claim 1, characterized in that: A controller is also provided at the bottom of the main box (100), and the controller is electrically connected to the pesticide residue detection module, the pesticide residue detection module and the display (302) respectively.

6. A rapid detection device for pesticide residues and aromatic substances in jasmine fresh flowers according to claim 1, characterized in that: The height of the display (302) is adjustable.

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