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Analysis method of pesticide emulsifier

An analytical method and emulsifier technology, applied in the field of chemical analysis, to achieve the effect of accurate capture

Inactive Publication Date: 2018-06-29
苏州禾川化学技术服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the pesticide emulsifiers in different pesticide systems are not the same, and the separation methods of pesticide emulsifiers in different systems are also different.

Method used

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  • Analysis method of pesticide emulsifier
  • Analysis method of pesticide emulsifier
  • Analysis method of pesticide emulsifier

Examples

Experimental program
Comparison scheme
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Embodiment approach

[0036] An embodiment of the present invention is as follows:

[0037] Select a liquid pesticide (sample code 088361) to analyze the components of the pesticide emulsifier:

[0038] 1. Preliminary judgment of the pesticide system

[0039] First of all, it is judged that the pesticide is a light yellow oily liquid, which does not turn blue when tested with anhydrous copper sulfate, and tested with a Karl Fischer moisture meter. It can be judged that the entire pesticide system does not contain water and is easy to volatilize. The whole pesticide is dissolved in water to form a stable and uniform emulsion. Therefore, it can be preliminarily judged that the pesticide system is an active ingredient dissolved in mineral spirits. The emulsion formed after the pesticide is dissolved in water is due to the presence of emulsifier in the pesticide. Thus, the separation scheme was initially selected.

[0040] 2. On the basis of preliminary judgment, select appropriate pre-treatment se...

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Abstract

The invention provides an analysis method of a pesticide emulsifier. The method comprises the following steps: (1) initially judging a pesticide system; (2) performing separation by using an appropriate pretreatment separation means on the basis of the initial judgment; (3) performing component analysis by comprehensively using an analyzer and an analysis method; and (4) performing data summarization and analysis to determine the components, type, structure and content of the pesticide emulsifier. Through the analysis method provided by the invention, the pesticide emulsifiers with different structural components can be quickly and accurately analyzed in reply to the pesticides in various different systems.

Description

technical field [0001] The invention belongs to the field of chemical analysis, and in particular relates to an analysis method of a pesticide emulsifier. Background technique [0002] Pesticides play an irreplaceable role in ensuring and promoting the growth of crops in agricultural production. At present, most organic pesticides show lipophilicity in chemical structure, and their solubility in water is not good. At this time, it is necessary to add an emulsifier to the pesticide, so that the lipophilic pesticide can form a stable emulsion in water, so as to facilitate the use and ensure the uniform spraying of the pesticide. [0003] The essence of pesticide emulsifier is a kind of surfactant, usually anionic surfactant and nonionic surfactant. The type of emulsifier needs to be selected according to the type and properties of the original drug and solvent. The selection of emulsifiers in pesticides can not only help the dissolution and dispersion of pesticides, but als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/00
Inventor 景欣欣张俊晨王婷婷殷静雪
Owner 苏州禾川化学技术服务有限公司