Pretreatment device for pesticide residue detection

Abstract

The invention discloses a pretreatment device for pesticide residue detection. A water-soluble solvent extraction device B comprises a device base, a solution box, an extraction device, a distiller, a condenser and a collection box; a non-water-soluble solvent redistribution device A comprises a base, a mixing bottle, an upper supporting seat, a side stand column, a filter bottle, a drainage tube, a filter screen, a drainage pump and a mixing bottle oscillation mechanism; and a solid-phase adsorption column purification device C comprises a column body with a cylindrical shell structure and a column cap positioned at the upper end of the column body. The water-soluble solvent extraction device B is simple in structure and good in using effect, water-soluble substances are rapidly extracted, the extraction speed and the extraction rate are increased, and the overall practicability is improved. The non-water-soluble solvent redistribution device A is used for vibrating a non-water-soluble solvent in the mixing bottle so as to separate a non-water-soluble substance and the structure is simple, and use and operation are convenient. The solid-phase adsorption column purification device C is simple in structure and convenient to operate and control and the column body can be vertically supported on an operation table top through a support mechanism.

Description

technical field [0001] The invention relates to a pesticide residue detection device, in particular to a pre-processing device for pesticide residue detection. Background technique [0002] The development of agricultural industrialization makes the production of agricultural products more and more dependent on exogenous substances such as pesticides, antibiotics and hormones. The amount of pesticides used in agricultural products in my country remains high, and the unreasonable use of these substances will inevitably lead to excessive pesticide residues in agricultural products, affecting the safety of consumers, and in severe cases, it will cause consumers to become ill, develop abnormally, and even directly lead to poisoning die. Excessive pesticide residues will also affect the trade of agricultural products. Countries all over the world attach great importance to the issue of pesticide residues, and have set increasingly strict limits for pesticide residues in various a...

AI Technical Summary

Problems solved by technology

[0008] The traditional chromatographic column method is not suitable for the purification of pesticide residues, and it is not suitable for the detection of a large number of samples and the preparation of standard substances. At present, there is still a lack of an adsorption column purification device that is simple to operate and can be used for the detection of pesticide residues.

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