Pesticide Residue Determination Method

Since the 1950s, chemically synthesized pesticides have been widely used worldwide, alleviating the pressure on food supply caused by the rapid population expansion, and greatly promoting the development of agricultural productivity

1.

Pesticide residues refer to the pesticide precursors and special derivatives with toxicological significance that remain in crops and the environment after the use of pesticides, such as degradation or transformation products, metabolites, and impurities

The toxicity of residual pesticides is divided into acute toxicity and chronic toxicity

2.

Pesticide residue analysis refers to the qualitative and quantitative determination of trace, trace and even ultra-trace pesticide residues in samples using modern analytical techniques

According to their structural characteristics, pesticides can be divided into organochlorine, organophosphorus , carbamate , pyrethroid , heterocyclic and other types

Pesticide residue analysis belongs to the category of trace analysis.

At the same time, it must be emphasized that the fundamental purpose of strictly controlling pesticide residues in Chinese medicinal materials is to ensure the safety of medicinal use

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