Rapid detection device for carbamate pesticide residues

Abstract

The invention discloses a rapid detection device for carbamate pesticide residues. The device comprises a primary mixing pool, a color developing pool, a waste liquid pool, a sample liquid supply device, a buffer solution supply device, a first color developing agent supply device, a second color developing agent supply device, a cleaning liquid supply device, a spectrum testing device, a temperature control module, a valve pump module, a liquid flow control module, a testing module, a display module and a control unit. According to the present invention, the use amounts of a sample solution,a buffer solution and a 4-aminoantipyrine solution entering the primary mixing pool are accurately controlled, carbamate in the sample solution is hydrolyzed in an alkaline environment to generate phenolic compounds, then, the mixed solution enters the color developing pool, and a second color developing agent enters the color developing pool and reacts with phenolic compounds in the mixed solution to generate a red complex, and then, the liquid in the developing pool is controlled to enter the spectrum testing device, and the pesticide residue in the sample solution is tested. The device is simple to operate, and is high in detection speed and accurate in detection result.

Description

technical field [0001] The invention relates to the technical field of analysis and detection of pesticide residues, in particular to a rapid detection device for carbamate pesticide residues. Background technique [0002] Exogenous substances such as pesticides, antibiotics and hormones are widely used in the production process of agricultural products. The earliest pesticides used were organochlorine and organophosphorus pesticides. Although they can eliminate pests in large quantities, this type of pesticide has good stability, can exist in the environment for a long time, and accumulate continuously in animals, plants and humans, so it is gradually used. disuse. Now widely used carbamate pesticides have the advantages of strong selectivity, high efficiency, low toxicity to humans and animals, easy decomposition, and less residue. Therefore, they have been widely used. However, studies have shown that carbamate pesticides have certain carcinogenic, teratogenic and mutag...

AI Technical Summary

Problems solved by technology

However, studies have shown that carbamate pesticides have certain carcinogenic, teratogenic and mutagenic effects, and long-term exposure to such pesticides through diet will have an impact on human health. Therefore, monitoring of carbamate pesticide residues is carried out on agricultural products extra important

[0003] In the existing market, most of the kits and simple pesticide residue quick test cards are used to quickly detect pesticide residues through the cholinesterase inhibition method, which has high cost and low detection accuracy; while large-scale instruments such as gas phase or liquid chromatography , although the accuracy and sensitivity are high, this kind of instrument is expensive, the operation process is complicated, the detection time is long, and it needs professionals to carry out it, which cannot meet the needs of a large number of rapid detection of daily food safety

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