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Preparation method of GSH@AgNCs/MgAl-ELDH modified electrode

A technology for modifying electrodes and solutions, applied in chemical instruments and methods, metal processing equipment, electrochemical variables of materials, etc., can solve problems such as unstable performance, affecting electrical conductivity and electrochemical catalytic performance, and achieve the effect of simple preparation method

Inactive Publication Date: 2020-07-28
QINGDAO UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to its small size, its performance is unstable, and at the same time, aggregation will occur during application, which will affect its electrical conductivity and electrochemical catalytic performance.

Method used

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  • Preparation method of GSH@AgNCs/MgAl-ELDH modified electrode
  • Preparation method of GSH@AgNCs/MgAl-ELDH modified electrode
  • Preparation method of GSH@AgNCs/MgAl-ELDH modified electrode

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Embodiment Construction

[0042] The following clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

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Abstract

The invention discloses a preparation method of a GSH@AgNCs / MgAl-ELDH modified electrode. The method comprises the following specific steps: S1, preparing glutathione-coated silver nano-cluster GSH@AgNCs: preparing a GSH@AgNCs sample by taking glutathione as a stabilizer and sodium borohydride as a reducing agent and adopting a chemical reduction method; s2, preparing a magnesium-aluminum hydrotalcite material: preparing magnesium-aluminum hydrotalcite MgAl-LDH and a magnesium-aluminum hydrotalcite nanosheet MgAl-ELDH by adopting a coprecipitation and formamide stripping method; s3, preparingGSH@AgNCs / MgAl-LDH, and GSH@AgNCs / MgAl-ELDH; and S4, preparing the GSH@AgNCs / MgAl-ELDH modified electrode. The invention discloses a preparation method of a GSH@AgNCs / MgAl-ELDH modified material, a modified electrode is prepared, the electrochemical activity of the electrode is improved, and simultaneous determination of pesticides carbaryl and isoprocarb by the GSH@AgNCs / MgAl-ELDH modified electrode is realized.

Description

technical field [0001] The invention relates to the field of preparation of modified electrodes, in particular to a preparation method of a GSH@AgNCs / MgAl-ELDH modified electrode and its detection application. Background technique [0002] Carbaryl and isoprocarb are broad-spectrum carbamate insecticides with moderate toxicity. Due to their wide application and long half-life, carbaryl and isoprocarb usually remain in the soil to pollute water sources, seriously threatening human health. The toxic mechanism of carbamate pesticides and organophosphorus pesticides is to inhibit the activity of cholinesterase, and their external clinical symptoms cannot accurately locate the cause of poisoning, and the wrong use of agents for organophosphorus pesticide poisoning will aggravate The patient's condition can even lead to death. Therefore, it is urgent to study a technology capable of qualitative and quantitative analysis and detection of carbamate pesticides. [0003] At present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/30C01F7/00B22F9/24B22F1/00B82Y30/00B82Y40/00
CPCG01N27/308B22F9/24B82Y30/00B82Y40/00B82Y15/00B22F1/102B22F1/054C01F7/785
Inventor 詹天荣闫丽艳丁桂艳解万翠王磊
Owner QINGDAO UNIV OF SCI & TECH
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