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Synthetic method of gold nanoparticles and organophosphorus detection method

A gold nanoparticle and synthesis method technology, which is applied in the synthesis of gold nanoparticles and the detection of organophosphorus, which can solve the problems of low sensitivity and detection rate, and low detection efficiency of organophosphorus pesticides.

Pending Publication Date: 2022-07-29
安康市农产品质量安全检验监测中心
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Problems solved by technology

[0004] However, the current gold nanoparticles have low sensitivity and detection rate when detecting organophosphorus pesticides, and the detection efficiency of organophosphorus pesticide residues in agricultural products is not high.

Method used

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  • Synthetic method of gold nanoparticles and organophosphorus detection method
  • Synthetic method of gold nanoparticles and organophosphorus detection method
  • Synthetic method of gold nanoparticles and organophosphorus detection method

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Embodiment Construction

[0039] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of this application.

[0040] In the description of the embodiments of the present application, the terms "first" and "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitl...

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Abstract

The invention provides a gold nanoparticle synthesis method which comprises the following steps: under a subcritical condition, adding a trisodium citrate solution into a gold ion solution, and reacting for a first preset time duration until the color of the solution is amaranth; cooling to room temperature, and centrifuging at a first centrifugal rotating speed; a gold nanoparticle precursor is obtained; coupling the solution of the gold nanoparticle precursor with the first preset concentration with the solution of the sulfur-containing amino acid condensate for a second preset time length; and centrifuging at a second centrifugal rotating speed to obtain the gold nanoparticles. The invention also provides an organic phosphorus detection method.

Description

technical field [0001] The application belongs to the technical field of pesticide residue detection, and in particular relates to a method for synthesizing gold nanoparticles and a method for detecting organophosphorus. technical background [0002] Pesticides are commonly used in agriculture to inhibit and control pests or bacteria in order to increase crop yields and reduce the impact of pests and diseases on crops. However, highly toxic pesticides can cause harm to the environment and even the human body through soil, water, vegetables, fruits, etc. Among them, organophosphorus pesticides are the most harmful and are classified as toxicology class I (that is, commonly referred to as highly toxic). The reason for the extreme toxicity of organophosphorus is that organophosphorus can inhibit the key enzyme acetylcholinesterase in the nerve cells of the central and peripheral nervous system through irreversible phosphorylation, which can easily cause neuromuscular dysfuncti...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
CPCG01N21/78
Inventor 秦林新曹康陈潇周高新闫琴李晓雪
Owner 安康市农产品质量安全检验监测中心
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