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Method for simultaneously determining aminophenol isomers

An aminophenol and isomer technology, which is applied in the field of simultaneous determination of aminophenol isomers, can solve the problems of low detection selectivity and sensitivity, complex electrode material synthesis, and expensive carbon nanotubes, etc. Simple production process, high sensitivity effect

Inactive Publication Date: 2014-07-16
UNIV OF JINAN
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Problems solved by technology

In recent years, more and more analysts have used chemically modified electrodes to measure p-aminophenol, among which carbon nanotube polymer modified electrodes have been used to identify p-aminophenol isomers, but this method requires electrode material synthesis. Complex, carbon nanotubes are expensive, electrodes are not easy to update and have poor reproducibility, and the detection selectivity and sensitivity are not high

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  • Method for simultaneously determining aminophenol isomers
  • Method for simultaneously determining aminophenol isomers
  • Method for simultaneously determining aminophenol isomers

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Embodiment 1

[0026] 1. Preparation of Hexadecyl Functionalized Mesoporous Silicon Modified Glassy Carbon Electrode by Galvanostatic Deposition

[0027] The preparation steps of hexadecyl functionalized mesoporous silicon modified electrode by galvanostatic deposition method: take 20 mL of ethanol and secondary water solution, add KCl (0.11 g), CTAB (1.19 g), TEOS ( 1.89 g) and hexadecyltriethoxysilane, then use 0.1 mol×L -1 HCl was used to adjust the pH to 3.0 (n TEOS:n CTAB=1:0.36 in the solution) as the deposition solution; 10.00 mL deposition solution was added to the electrolytic cell, the glassy carbon electrode was used as the working electrode, the platinum electrode was used as the auxiliary electrode, and the Ag / AgCl The electrode was a reference electrode and was deposited at a constant current of 26 mA for 200 s; the electrode was taken out and rinsed with secondary water, then placed in a drying oven, dried at 130 °C overnight, cooled, and placed in ethanol for ten minutes to r...

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Abstract

The invention relates to the technical field of the analysis and determination of a geometric isomer, in particular to a method for preparing a hexadecyl functionalized mesoporous silicone modified glass carbon electrode by utilizing a constant-current deposition method and also for simultaneously determining three geometric isomers of aminophenol. The electrode is simple to produce, the price of raw materials is low, the stability is good, no toxicity exits, and the environment is not polluted; moreover, by adopting the determination method, the interference of coexisting substances can be effectively reduced, the selectivity is good, and the sensitivity is high.

Description

technical field [0001] The invention relates to the technical field of isomer analysis and determination, in particular to a method for preparing a hexadecyl functionalized mesoporous silicon-modified glassy carbon electrode by using a constant current deposition method and using it for simultaneous determination of aminophenol isomers. Background technique [0002] Aminophenol (AP) is an important chemical intermediate widely used in biology, medicine, printing, dyes and so on. Because it pollutes the environment and has certain toxic and side effects on the human body, it is of great significance to detect its content. The discharge of phenolic wastewater has strict standards both at home and abroad. Therefore, it is necessary and practical to realize the detection and separation of trace amounts of phenolic organic pollutants in the environment. In recent years, more and more analysts have used chemically modified electrodes to measure p-aminophenol, among which carbon ...

Claims

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Application Information

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IPC IPC(8): G01N27/48G01N27/30
Inventor 周长利郑香丽卫茂超刘姗
Owner UNIV OF JINAN
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