Food residue detection equipment based on gas chromatograph

Abstract

The utility model belongs to the field of food safety and analytical chemistry, and particularly relates to food residue detection equipment based on a gas chromatograph, which comprises a detection box and a detector, the detection box is used as a main body part of the equipment and is integrated with a heating element and the gas chromatograph by adopting the prior art, the detector is arranged at the top end of the detection box, and the detector is connected with the detection box. The device further comprises a magnetic type heat preservation cover, a magnetic plate and the like, the magnetic plate of a square structure is fixedly connected to the front portion of the detection box and keeps away from a moving area of a box door of the detection box, and the magnetic type heat preservation cover is magnetically attracted to the front portion of the detection box through the magnetic plate. The magnetic type heat insulation cover is arranged at the front part of the detection box, so that the stability of the temperature inside and outside the detection box can be ensured, and even if the detection box is opened for replacing a chromatographic column, the whole operation process can effectively prevent the adverse effect of temperature change on experimental data due to the dual protection of the magnetic type heat insulation cover and the heat insulation operation gloves; and the stability and reliability of experimental results are ensured.

Description

Technical Field

[0001] This utility model belongs to the field of food safety and analytical chemistry, and in particular relates to a food residue detection device based on gas chromatography. Background Technology

[0002] Gas chromatography-based food residue detection equipment is a high-precision analytical instrument specifically designed for detecting residues in food. This equipment uses gas chromatography technology to separate and detect various components in food samples, enabling precise quantitative analysis of harmful substances such as pesticide residues, veterinary drug residues, and additive residues. It integrates modern electronic technology, computer technology, and efficient chromatographic separation technology, featuring high sensitivity, high resolution, and high automation. This equipment is widely used in food safety monitoring, quality control, and scientific research, providing strong technical support for protecting public health and promoting the healthy development of the food industry.

[0003] Temperature control is crucial for ensuring effective separation during the detection process. Precise temperature management guarantees that compounds are separated as expected, resulting in accurate and reliable analytical results. However, frequent opening and closing of the detection chamber is often necessary when changing the column, which can cause temperature fluctuations within the chamber and affect the consistency and repeatability of experimental results.

[0004] Therefore, there is a particular need for a gas chromatography-based food residue detection device to solve the above problems. Utility Model Content

[0005] To overcome the drawback that frequent opening and closing of the detection chamber to change the chromatographic column during the detection process can cause temperature fluctuations inside the chamber, affecting the consistency and repeatability of experimental results, this utility model provides a food residue detection device based on a gas chromatograph.

[0006] This utility model is achieved through the following technical means: a food residue detection device based on a gas chromatograph, comprising a detection chamber and a detector. The detection chamber, as the main body of the device, adopts existing technology and integrates a heating element and a gas chromatograph. The detector is installed on the top of the detection chamber. It also includes a magnetic heat-insulating cover, heat-insulating operating gloves, heat-resistant glass, a magnetic plate, a temperature control module, and a fixing clamp. The U-shaped magnetic plate is fixedly connected to the front of the detection chamber and avoids the moving area of ​​the detection chamber door. The magnetic heat-insulating cover is magnetically attached to the front of the detection chamber by the magnetic plate. Two heat-insulating operating gloves are distributed left and right and fixedly connected to the front of the magnetic heat-insulating cover. The palm and finger parts extend into the inside of the magnetic heat-insulating cover, while the wrists extend into the outside of the magnetic heat-insulating cover. The heat-resistant glass is fixedly connected to the front of the magnetic heat-insulating cover. The temperature control module is installed inside the magnetic heat-insulating cover and is electrically connected to the heating element inside the detection chamber. The fixing clamp for fixing a spare chromatographic column is installed at the bottom inner end of the magnetic heat-insulating cover.

[0007] Furthermore, it also includes a baffle with two sliding grooves distributed symmetrically on the left and right sides, which are opened at the front of the magnetic heat-insulating cover. The baffle is slidably connected between the two sliding grooves and is located in front of the heat-resistant glass, completely blocking the heat-resistant glass from the front.

[0008] Furthermore, the front of the baffle is equipped with a cylindrical handle.

[0009] Furthermore, it also includes a magnetic strip, which is fixedly connected to the upper part of the baffle.

[0010] Furthermore, the rear side of the magnetic insulation cover completely covers the front side of the magnetic plate when viewed directly.

[0011] Furthermore, the palm and finger sleeves of the heat-insulated operating gloves are made of a highly elastic, flexible material.

[0012] Beneficial effects: 1. By installing a magnetic heat-insulating cover at the front of the detection chamber, the temperature inside and outside the detection chamber can be kept stable. Even when the detection chamber is opened for column replacement, the magnetic heat-insulating cover and the heat-insulating gloves provide double protection, which can effectively prevent temperature changes from adversely affecting the experimental data and ensure the stability and reliability of the experimental results.

[0013] 2. By using the baffle and magnetic strip together, the heat-resistant glass can be flexibly covered or exposed, providing operators with a convenient observation window. The magnetic strip can firmly fix the position of the baffle, ensuring that the baffle will not move due to misoperation during the testing process, thus improving the stability and safety of the operation. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a partial cross-sectional view of the magnetic heat preservation cover component of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the heat-resistant glass component of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the heat-insulating operating glove component of this utility model.

[0018] In the attached diagram, the following are the reference numerals: 1. Detection box, 2. Detector, 3. Magnetic heat-insulating cover, 4. Heat-insulating operating gloves, 5. Baffle, 51. Magnetic strip, 52. Slide groove, 53. Heat-resistant glass, 6. Magnetic plate, 7. Temperature control module, 8. Fixing clamp. Detailed Implementation

[0019] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0020] Example: A food residue detection device based on gas chromatography, such as... Figures 1-4As shown, the device includes a detection chamber 1 and a detector 2. The detection chamber 1, as the main body of the equipment, adopts existing technology and integrates core detection components such as heating elements and a gas chromatograph. The detector 2 is installed at the top left rear of the detection chamber 1 and can display and analyze the detection data of the gas chromatograph. It also includes a magnetic insulation cover 3, heat-insulating operating gloves 4, heat-resistant glass 53, a magnetic suction plate 6, a temperature control module 7, and a fixing clamp 8. The U-shaped magnetic suction plate 6 is fixedly connected to the front edge of the detection chamber 1, avoiding the moving area of ​​the detection chamber 1 door. The magnetic insulation cover 3 is connected via magnetic... The magnetic suction plate 6 is located at the front left of the detection box 1. This magnetic attachment allows for quick removal of the magnetic insulation cover 3 when needed, facilitating daily operation and maintenance. Furthermore, the rear side of the magnetic insulation cover 3 completely covers the front side of the magnetic suction plate 6 when viewed directly, ensuring a good fit and seal between the magnetic insulation cover 3 and the magnetic suction plate 6, effectively reducing heat loss and improving insulation performance. Two heat-insulating operating gloves 4 are distributed left and right, fixedly connected to the lower front of the magnetic insulation cover 3, with their palm and finger cots extending into the interior of the magnetic insulation cover 3, allowing the operator to... The operator places their hand inside the magnetic heat-insulating cover 3 to operate, while the wrist extends to the outside of the cover 3 for easy donning and doffing. The palm and finger sleeves of the heat-insulating operating gloves 4 are made of a highly elastic flexible material, which expands the operator's range of motion when wearing the gloves. The highly elastic material ensures that the gloves fit snugly against the hand without restricting finger movement, allowing the operator to easily perform delicate tasks while wearing them. A ring of material is also present on the contact surface between the magnetic heat-insulating cover 3 and the gloves 4. Rubber strips enhance the seal between the magnetic heat-insulating cover 3 and the heat-insulating operating gloves 4, preventing heat loss from the inside of the magnetic heat-insulating cover 3 through the gap between the contact surfaces. The heat-resistant glass 53 is fixedly connected to the upper front of the magnetic heat-insulating cover 3, allowing observation of the interior of the magnetic heat-insulating cover 3. The temperature control module 7 is installed in the upper interior of the magnetic heat-insulating cover 3 and is electrically connected to the heating element inside the detection chamber 1, enabling precise control of the internal temperature of the detection chamber 1. The fixing clamp 8 for fixing the spare chromatographic column is installed at the bottom inner end of the magnetic heat-insulating cover 3.

[0021] like Figures 1-2As shown, it also includes a baffle 5 and a magnetic strip 51. Two sliding grooves 52 are distributed symmetrically on the left and right sides and are opened at the upper front part of the magnetic insulation cover 3. The baffle 5 is slidably connected between the two sliding grooves 52 and is located in front of the heat-resistant glass 53, completely blocking the heat-resistant glass 53 from the front, providing operators with a convenient way to control the opening and closing of the observation area, and protecting the heat-resistant glass 53 from accidental collisions or contamination. A columnar handle is provided at the left front part of the baffle 5. By holding and pulling the columnar handle, the baffle 5 can be easily slid to block or expose the heat-resistant glass 53. The magnetic strip 51 is fixedly connected to the upper center of the baffle 5.

[0022] When food residue testing is required, the operator first removes the magnetic heat-insulating cover 3, neatly places the spare chromatographic column on the fixing clamp 8, and then puts the magnetic heat-insulating cover 3 back into place using the magnetic plate 6. Next, the baffle 5 is slid upward to offset the heat-resistant glass 53. When the heat-resistant glass 53 is fully exposed, the baffle 5 slides up to the appropriate position. At this time, the magnetic strip 51 automatically attaches to the magnetic heat-insulating cover 3 to fix the position of the baffle 5. Then, the operator puts on the heat-insulating operating gloves 4 and begins the testing operation.

[0023] During the detection process, the internal temperature of the detection chamber 1 is controlled by the temperature control module 7. If the chromatographic column needs to be replaced, the spare chromatographic column on the fixing clamp 8 can be directly taken to quickly replace the chromatographic column inside the detection chamber 1. The entire replacement process is carried out compactly between the magnetic heat preservation cover 3 and the detection chamber 1, which greatly reduces the fluctuation of the internal temperature of the detection chamber 1 when replacing the chromatographic column, ensuring the stability and reliability of the experimental results.

[0024] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A food residue detection device based on gas chromatography, comprising a detection chamber (1) and a detector (2), wherein the detection chamber (1) is the main body of the device, adopts existing technology, and integrates a heating element and a gas chromatograph, and the detector (2) is installed on the top of the detection chamber (1), characterized in that: It also includes a magnetic heat-insulating cover (3), heat-insulating operating gloves (4), heat-resistant glass (53), a magnetic plate (6), a temperature control module (7), and a fixing clamp (8). The magnetic plate (6) with a U-shape structure is fixedly connected to the front of the test box (1) and avoids the moving area of ​​the test box (1) door. The magnetic heat-insulating cover (3) is magnetically attached to the front of the test box (1) through the magnetic plate (6). The two heat-insulating operating gloves (4) are distributed on the left and right and fixedly connected to the magnetic plate. The front part of the magnetic heat insulation cover (3) has its palm and finger sleeves extending into the interior of the magnetic heat insulation cover (3), while the wrist extends into the exterior of the magnetic heat insulation cover (3). The heat-resistant glass (53) is fixedly connected to the front part of the magnetic heat insulation cover (3). The temperature control module (7) is installed inside the magnetic heat insulation cover (3) and is electrically connected to the heating element inside the detection box (1). The fixing clamp (8) for fixing the spare chromatographic column is installed at the bottom inner end of the magnetic heat insulation cover (3).

2. The food residue detection device based on gas chromatography as described in claim 1, characterized in that: It also includes a baffle (5), two sliding grooves (52) are distributed symmetrically on the left and right, and are opened at the front of the magnetic heat insulation cover (3). The baffle (5) is slidably connected between the two sliding grooves (52) and is located in front of the heat-resistant glass (53), completely blocking the heat-resistant glass (53) from the front.

3. The food residue detection device based on gas chromatography as described in claim 2, characterized in that: The front of the baffle (5) is provided with a columnar handle.

4. The food residue detection device based on gas chromatography as described in claim 3, characterized in that: It also includes a magnetic strip (51), which is fixedly connected to the upper part of the baffle (5).

5. The food residue detection device based on gas chromatography as described in claim 4, characterized in that: The rear side of the magnetic heat insulation cover (3) completely covers the front side of the magnetic plate (6) when viewed directly.

6. The food residue detection device based on gas chromatography as described in claim 5, characterized in that: The palm and finger sleeves of the thermally insulated operating gloves (4) are made of a highly elastic flexible material.

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