The Design Of Rapid Detection System For Pesticide Residues

As people’s quality of life and levels of consumption increased, health has gradually become the focus of attention, and the security requirements for agricultural products has become more sophisticated. Pesticide residues is the major cause of pollution caused by agricultural products, so, this paper designed a rapid detection system of pesticide residues.This system combined with photoelectric detection technology and chemiluminescence, restrained brightening agent reaction by organophosphorus pesticides, converting optical signals to electrical signals by using photomultiplier tubes, then this system amplifies the resulting electrical signal sampling, and inputs the result data into the microcontroller for processing, to get the relationship between the luminous intensity and the output voltage, in order to measure the pesticide concentrations. Finally, the experimental measurement system was made, and confirmed that the system could detect pesticides concentrations below the national minimum standards required, achieved the purpose of this design.