Pesticide residue detection method and system

Abstract

The application provides a pesticide residue detection method and system. The method comprises the following steps: extracting a to-be-detected sample solution; detecting the to-be-detected sample solution by using a pesticide residue detection device, and collecting a standard color development image being a color development image of a sample solution without pesticide residues and a pesticide residue color development image being a color development image of the to-be-detected sample solution of the pesticide residue detection device; calculating a pesticide residue rate according to the standard color development image and the pesticide residue color development image; and inputting the pesticide residue rate into a pre-constructed pesticide residue rate and pesticide residue concentration relation model to obtain the pesticide residue concentration. The method has the advantages of being high in detection speed, suitable for field detection, high in detection accuracy, easy to operate, convenient to carry, low in investment cost and the like.

Description

technical field [0001] The present application relates to the technical field of pesticide residue detection, in particular to a pesticide residue detection method and system. Background technique [0002] At present, the environmental pollution caused by the extensive use of pesticides and the toxicity problems caused by pesticide residues in the mouth have attracted great attention from many countries. In order to protect the ecological environment and safeguard human health, many countries have strictly stipulated the limits of various pesticide residues in the environment and food. The analytical techniques and methods of pesticide residues are also highly valued. [0003] Traditional pesticide residue detection methods include: using ethylenecholinease spectrophotometry, it takes about a few hours to two days from sampling, sample processing to analysis to obtain the results, which is not conducive to on-site testing and detection, in vivo detection method, using livin...

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Problems solved by technology

[0003] Traditional pesticide residue detection methods include: using ethylenecholinease spectrophotometry, it takes about a few hours to two days from sampling, sample processing to analysis to obtain the results, which is not conducive to on-site testing and detection, in vivo detection method, using living organisms Sensitive reactions to pesticide residues are determined by observing the death rate to determine the concentration of pesticide residues. This method has low detection accuracy and a narrow scope of application to pesticides; immunoassay is an ultramicro analysis method that combines antibody antigen reaction with modern testing methods. Its development process requires a lot of investment, a long time, the antibody preparation is difficult, and the antibody is specific and only suitable for the detection and analysis of a single pesticide residue concentration.

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