High sensitivity pesticide residue detection equipment based on spectrometry

Abstract

The invention relates to high sensitivity pesticide residue detection equipment based on spectrometry, and the equipment comprises a casing, a processing chamber and a door panel, wherein the casing is provided with a container, a PLC and a detecting mechanism; the detecting mechanism comprises a light source, a receiver and two reflecting components; the reflecting components comprise a baffle, atranslating unit and a plurality of reflecting units; the reflecting units comprise an opening, a connecting block, a connecting rod and two mirrors; and a processing mechanism comprises a sealing plate, a frame, a sieve, a stirring component, a plurality of vertical rods and two lifting components. The high sensitivity pesticide residue detection equipment based on spectrometry drives the pesticide ingredients in the food to be mixed into the reaction liquid by using the processing mechanism to drive the residue to be separated from the reaction liquid, so that the reaction liquid remains clarified and the residue is prevented from interfering with the propagation of infrared light. More than that, the detection mechanism extends the propagation path of the infrared light and expands thedegree of attenuation of the infrared light, thereby improving the sensitivity and detection accuracy of the equipment to further improve the practicability of the equipment.

Description

technical field [0001] The invention relates to the field of food detection equipment, in particular to a high-sensitivity pesticide residue detection equipment based on spectroscopy. Background technique [0002] Pesticide residues in food refer to trace amounts of pesticides that remain in organisms, agricultural products (or food) and the environment after pesticide use. In addition to pesticides themselves, they also include toxic metabolites and impurities of pesticides. It is a general term for pesticides and other related substances. [0003] As a method of pesticide residue detection, spectroscopy is based on the chemical reactions such as oxidation, sulfonation, and complexation of some functional groups or hydrolysis and reduction products in organophosphorus pesticides and special chromogenic agents in specific environments. , produce a color reaction at a specific wavelength for qualitative or quantitative determination, and the detection limit is at the microgra...

AI Technical Summary

Problems solved by technology

However, in the existing spectral detection equipment, due to the limited length of the transmission route of the light used for detection, the attenuation degree is small when passing through the reaction solution, which makes the detection sensitivity of the equipment low, which is not conducive to accurate measurement of food pesticide content, and the light During the propagation process, it is easy to be interfered by food fragments and debris in the detection solution, which further affects the detection of the equipment, resulting in a decrease in the detection accuracy and practicability of the equipment

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