Immunosensor-based resistance-type pesticide residue detector

Abstract

The invention relates to an immunosensor-based resistance-type pesticide residue detector which is composed of a detection circuit, an immunosensor, a power source, buttons, a microcontroller and a display screen. The detection circuit is used for generating excitation voltage and applying the same on the immunosensor, and then sampling response signals after excitation, performing digital processing and sending a result to the microcontroller, the microcontroller and a detection program running on the same reprocess input signals and control on and respond to running of a whole system, the buttons are used for inputting instructions and detection parameters, the display screen is used for quantitatively outputting and presenting a final detection result and serves as an interaction interface of a user and a system, and the power source provides energy to the whole system. The immunosensor-based resistance-type pesticide residue detector integrates pesticide residue detection technology based on a biosensor method with an embedded-type system designing method, thereby having the advantages of high practicability, portability, high detection accuracy, quickness and accuracy in detection, easiness in operation and the like, and is quite suitable for occasions performing on-site quick detection on pesticide residues.

Description

technical field [0001] The invention relates to a pesticide residue detector, in particular to an immunosensor-based impedance pesticide residue detector, which integrates the pesticide residue detection technology of the biosensor method and the embedded system design method, and is used for convenient, rapid and accurate detection of pesticide residues in food. The invention belongs to the technical field of pesticide detection. Background technique [0002] The actual annual output of pesticides in my country is about 400,000 tons, second only to the United States in the world, and the annual consumption is about 270,000 tons, ranking first in the world and tending to increase year by year. However, due to the backwardness of pesticide application technology in our country, pesticides cannot be effectively used. Excessive use of pesticides has led to serious pesticide pollution problems, and also poses a serious threat to my country's food safety and human health. [00...

AI Technical Summary

Problems solved by technology

[0005] The biggest advantage of chromatographic detection is that it can qualitatively and quantitatively detect pesticides in samples, but the samples of this method have to go through complicated pretreatment steps, the detection is time-consuming, expensive, and requires a large number of skilled personnel to operate equipment

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