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Portable detection generator for dynamic detection and application and use method thereof

A portable detection and dynamic detection technology, applied in the direction of electrochemical variables of materials, etc., can solve problems such as poor anti-interference ability, and achieve the effects of easy portability, small structure and simple operation.

Active Publication Date: 2021-05-25
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem of poor anti-interference ability of detection generators used to detect bisphenol A in the market, the present invention proposes a portable detection generator for dynamic detection and its application and use method

Method used

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  • Portable detection generator for dynamic detection and application and use method thereof
  • Portable detection generator for dynamic detection and application and use method thereof
  • Portable detection generator for dynamic detection and application and use method thereof

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Experimental program
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Effect test

Embodiment 1

[0036] see figure 1, the present embodiment is used for the portable detection generator of dynamic detection, and it comprises detection generator body, airtight chemical reaction chamber 1, reaction electrode head 2, filter unit 4, electrochemical workstation 5, suction type piston column 7 and computer, The electrolyte in the electrochemical workstation 5 is phosphate buffered saline (PBS), the concentration is 0.01mol / L, and the pH is 7.4; The volume of the liquid to be tested is controllable. The reaction electrode head 2 is a screen printing electrode, and the reaction electrode head 2 is composed of a counter electrode 21, a working electrode 22 and a reference electrode 23. The airtight chemical reaction chamber 1 is arranged on the detection generator body, and the counter electrode on the reaction electrode head 2 21. The working electrode 22, the reference electrode 23 and the suction piston column 7 are all placed in the closed chemical reaction chamber 1, and the...

Embodiment 2

[0040] The detection device used in the detection of bisphenol A in this embodiment includes the portable detection generator for dynamic detection in embodiment 1 and the coating layer of electrochemically responsive material, which has a certain effect on bisphenol A. Sensitive electrochemical response, the electrochemical response material coating layer is AuQD@CNFs composite material coating, the AuQD@CNFs composite material coating is formed by loading gold ions on the bacterial cellulose membrane with a three-dimensional network structure; the The AuQD@CNFs composite material coating is coated on the surface of the working electrode 22 of the reaction electrode head 2 on the portable detection generator for dynamic detection, and the mass of the AuQD@CNFs composite material coating is 3 μg.

[0041] Preferably, the mass of the AuQD@CNFs composite coating in this embodiment can also be 15 μg or 33 μg.

[0042] The preparation method of the AuQD@CNFs composite coating in t...

Embodiment 3

[0048] The detection device used in the detection of bisphenol A in this embodiment includes the portable detection generator for dynamic detection in embodiment 1 and the coating layer of electrochemically responsive material, which has a certain effect on bisphenol A. Sensitive electrochemical response, the electrochemical response material coating layer is a nano-gold coating, the nano-gold coating is coated on the surface of the working electrode 22 of the reaction electrode head 2 on the portable detection generator for dynamic detection, the nano-gold coating is The mass of the gold coating is 15 μg.

[0049] Preferably, the mass of the nano-gold coating can also be 3 μg or 33 μg.

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Abstract

The invention provides a portable detection generator for dynamic detection and application and a use method of the portable detection generator, and belongs to the technical field of harmful substance detection equipment. The portable detection generator specifically comprises a detection generator body, a reaction electrode tip, a filtering unit, an electrochemical workstation and a suction type piston plunger, wherein a closed chemical reaction cavity is formed in the detection generator body, the suction type piston plunger and the reaction electrode tip are both arranged in the closed chemical reaction cavity, the reaction electrode tip penetrates through the suction type piston column to be connected with the electrochemical workstation, the suction type piston column can slide along the cavity wall of the closed chemical reaction cavity, a liquid inlet and outlet is formed in the detection generator body, and the filtering unit is arranged at the liquid inlet and outlet. The filtering unit is communicated with the closed chemical reaction cavity through the liquid inlet and outlet.

Description

technical field [0001] The invention belongs to the technical field of detection equipment for harmful substances in food, and relates to a detection equipment for bisphenol A in food, in particular to a portable detection generator for dynamic detection and its application and use method. Background technique [0002] Bisphenol A is an endocrine disrupting chemical. Commonly found in synthetic plastic products, such as polycarbonate plastic, epoxy resin, etc. According to a large number of studies, bisphenol A can be detected in a large number of plastic containers and food packaging. Long-term contact of food with plastic containers will cause bisphenol A to migrate into the food, making the food contain a large amount of bisphenol A. Bisphenol A not only affects the development of the fetus, but also increases the risk of diseases such as cancer, heart disease, coronary heart disease and diabetes. [0003] At present, the most widely used methods for the analysis and de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/26G01N27/30
CPCG01N27/26G01N27/30
Inventor 张玉环李建科雷亚楠鲁皓张忠
Owner SHAANXI NORMAL UNIV