Rapid detector and detection method for electrochemical pesticide residue

A pesticide residue, electrochemical technology, applied in the direction of material electrochemical variables, scientific instruments, instruments, etc., can solve problems such as difficulty in meeting low residue and quantitative detection, inaccurate detection results, and the influence of spectrophotometry, and achieve automatic detection. , high sensitivity, simple extraction and processing

Active Publication Date: 2011-06-22
SHANDONG UNIV OF TECH
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Problems solved by technology

The principle of spectrophotometry is based on the change of absorbance for detection, but a large number of pigments in vegetables and fruits will have a great impact on spectrophotometry, resulting in inaccurate detection results
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  • Rapid detector and detection method for electrochemical pesticide residue
  • Rapid detector and detection method for electrochemical pesticide residue
  • Rapid detector and detection method for electrochemical pesticide residue

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[0038] In order to make it easy to understand the technical means, creative features, goals and effects achieved by the present invention, the present invention will be further explained below in conjunction with specific drawings.

[0039] Reference figure 1 , figure 2 , An electrochemical pesticide residue rapid detector, including a pesticide detection module, a micro-processor system 1 connected with the pesticide detection module, the pesticide detection module includes an acetylcholinesterase biosensor 2, the signal of the acetylcholinesterase biosensor 2 The output end is connected to the signal input end of the micro processor system 1, and the micro processor system 1 is connected to a display 3. The acetylcholinesterase biosensor 2 transmits the current signals before and after the sample liquid containing pesticides is put into the micro processor system 1. The processor system 1 processes the current signal to obtain the pesticide concentration, and displays the pest...

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Abstract

The invention relates to the technical field of food safety, in particular to a pesticide detection technology. An electrochemical pesticide residue rapid detector comprises a pesticide detection module and a microprocessor system which is connected with the pesticide detection module, wherein the pesticide detection module comprises an acetylcholinesterase biosensor of which the signal output end is connected with the signal input end of the microprocessor system; and the microprocessor system is connected with a display. Due to the adoption of the technical scheme, a detection system performs detection according to variation in current generated by reaction of an enzyme catalysis substrate and is not interfered by pigments in vegetables and fruits, so that a sample is relatively easy to extract and treat; and the detector has the advantages of high flexibility, intuitive display of a detection result, automatic detection and the like and is easy to operate when used for detecting pesticide residues.

Description

technical field [0001] The invention relates to the technical field of food safety, in particular to a pesticide residue detection technology. Background technique [0002] With the rapid and stable growth of my country's economy and the continuous improvement of people's living standards, the requirements for food consumption are also getting higher and higher. Returning to nature and consuming pollution-free food have become the consumption trend and market trend in the new era. However, environmental pollution poses a great threat to the hygienic quality of agricultural products, and food poisoning incidents have been reported continuously, which has aroused widespread concern. [0003] In order to ensure people's food safety, many agricultural product wholesale markets, hotels, restaurants and other places use testing equipment to detect pesticide residues in agricultural products. At present, the rapid detection methods of pesticide residues in my country are enzyme i...

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Application Information

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IPC IPC(8): G01N27/416G01N27/36G01N27/327
Inventor 孙霞王相友刘君峰赵文苹杜淑媛
Owner SHANDONG UNIV OF TECH
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