Multi-frequency ultrasonic drug residue cleaning and degradation experiment platform

Abstract

The invention discloses a multi-frequency ultrasonic drug residue washing degradation experimental platform which comprises a control panel, a controller, a first multi-path selector switch set, a second multi-path selector switch set, a third multi-path selector switch set, a fourth multi-path selector switch set, a driving isolation module, a power amplifying module, a first matching transformer, a second matching transformer, five ultrasonic signal generators, five matching inductors and five transducers arranged on corresponding reaction containers respectively. The control panel is connected with the controller to achieve double-direction signal transmission. A signal output end of the controller is connected with control signal input ends of the first multi-path selector switch set, the second multi-path selector switch set, the third multi-path selector switch set and the fourth multi-path selector switch set respectively. The output ends of the five ultrasonic signal generators are in selective connection with the driving isolation module through the first multi-path selector switch set respectively. According to the multi-frequency ultrasonic drug residue washing degradation experimental platform, five kinds of ultrasonic waves from low frequency to high frequency can be used for drug residue washing degradation experiment exploration, the application range of the platform is greatly expanded, the experiment contrast ratio and reliability are enhanced, and convenience is brought to researchers.

Description

technical field [0001] The invention relates to a multi-frequency ultrasonic drug residue cleaning and degradation experiment platform, which belongs to the field of ultrasonic drug residue cleaning and degradation. Background technique [0002] At present, the problem of pesticide residues is caused by the mass production and widespread use of pesticides. It is estimated that there are mainly 420 kinds of pesticides and products produced in the world, which have played a huge role in the control of crop diseases and insect pests. However, the long-term, unreasonable and large-scale use of pesticides has resulted in long-term accumulation of pesticide residues, seriously polluting agricultural products and the ecological environment, and directly or indirectly endangering human health. As a major pesticide production and use country in the world, our country uses up to 130 tons of pesticides per year. The problem of pesticide residues has gradually become the most prominent ...

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Problems solved by technology

[0005] 3. Biodegradation method: At present, this method is rarely used in actual production, and the stability and cost of the product are often difficult to meet the requirements of production practice, and further research is needed

Although there have been related studies on the application of ultrasound to the degradation of drug residues, most of them are qualitative analysis of the degradation of different concentrations of different types of drug residues by ultrasound at a specific frequency, and there are complex structures, single ultrasonic frequency, and low degradation efficiency. , It is difficult to realize multi-frequency cleaning and degradation experiments at the same time, and the experiment contrast is poor and the reliability is low.

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