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A kind of chloramphenicol electrochemical sensor detection method

A detection method and electrochemical technology, applied in the direction of electrochemical variables of materials, scientific instruments, instruments, etc., can solve the problems of expensive instruments, long detection time, cumbersome pretreatment, etc., and achieve simple preparation methods, low cost, and electrical conductivity. Good results

Active Publication Date: 2019-02-19
SHANDONG AGRICULTURAL UNIVERSITY
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Problems solved by technology

[0004] In order to solve the above problems, the present invention provides a chloramphenicol electrochemical sensor detection method, the purpose of which is to overcome the shortcomings of the traditional chloramphenicol detection method, such as long detection time, expensive equipment, and cumbersome pretreatment, and provide a chlorine Rapid and Sensitive Detection of Mycin

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  • A kind of chloramphenicol electrochemical sensor detection method
  • A kind of chloramphenicol electrochemical sensor detection method
  • A kind of chloramphenicol electrochemical sensor detection method

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Embodiment Construction

[0025] Below in conjunction with embodiment, the present invention is further described; Following embodiment is illustrative, not limiting, can not limit protection scope of the present invention with following embodiment.

[0026] In the invention, the CMK-@PDA compound and β-cyclodextrin are used to modify the electrode together, so as to establish a rapid detection method with high sensitivity for chloramphenicol. Its specific embodiment is:

[0027] 1. Modification of electrochemical sensor electrodes:

[0028] Add 100mg of ordered mesoporous carbon CMK-3 (purchased from Nanjing Pioneer Nanotechnology Co., Ltd.), 200mg of dopamine hydrochloride DA and 120mg of Tris (trishydroxymethylaminomethane) into 100mL of ultrapure water, and ultrasonically disperse under ice bath conditions 1min, stirred at room temperature for 10h. After filtering, washing and drying, the CMK-3@PDA composite material was obtained. Dilute 8 μL to a concentration of 1.5 mgmL -1 The CMK-3@PDA comp...

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Abstract

The invention relates to a detection method for a chloramphenicol electrochemical transducer. The main technical characteristic thereof is that an ordered mesoporous carbon @ dopamine compound membrane and beta-cyclodextrin dual modified electrode is adopted and the electrochemical activity of chloramphenicol is utilized to establish a quick sensitive detection method with wide detection scope for chloramphenicol. The method provided by the invention is low in cost, simple in experiment operation, high in sensitivity and suitable for detection of chloramphenicol in various foods.

Description

technical field [0001] The invention relates to a chloramphenicol electrochemical sensor detection method, which belongs to the technical field of food safety detection, in particular to a fast and sensitive detection method for chloramphenicol. Background technique [0002] Chloramphenicol ((1R,2R)-N-[α-(hydroxymethyl)-β-hydroxy-p-nitrophenethyl]-2,2-dichloroacetamide), originally from Venezuela Extracted from Streptomyces culture medium. In 1948, its structure was determined and became the first completely synthetic antibiotic, which is a kind of high-efficiency broad-spectrum antibiotic. Due to its good antibacterial effect and low price, it has been widely used in the processing of various animal-derived foods. Also because of its wide application and increasingly serious abuse, the severe damage of chloramphenicol to the hematopoietic system has attracted more and more attention. The Ministry of Agriculture of the People's Republic of China stipulates that chloramphe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/30G01N27/36G01N27/48
CPCG01N27/308G01N27/36G01N27/48
Inventor 徐志祥孙玉奉魏婷婷
Owner SHANDONG AGRICULTURAL UNIVERSITY
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