A method for detecting pentachlorophenol at an aluminum-doped mesoporous foam modified electrode
A foam material and modified electrode technology, which is applied in the direction of material electrochemical variables, material analysis, and material analysis through electromagnetic means, can solve problems such as human health hazards and biological toxicity, achieve strong adsorption effects, and improve signal response. Effect
Active Publication Date: 2021-03-16
GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
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Then enter the food chain through soil-plants, water-plants, etc., resulting in biological toxicity and harm to human health
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Embodiment 1
[0028] A kind of method that aluminum-doped mesoporous foam material modified electrode detects pentachlorophenol, operation steps are as follows:
[0029] (1) Synthesis of aluminum-doped mesoporous foam: 5.0 g polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer (P123, average molecular weight 5800) was dissolved in 350 mL with a concentration of 2.0 mol / L of hydrochloric acid solution, stir to completely dissolve the polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer, add 8.0g benzene, stir for 1h, add 1.02g aluminum isopropoxide, continue Stir for 1h, then add 10.5g tetraethyl orthosilicate dropwise, stir at 35°C for 24h, then transfer the resulting solution into a high-pressure reaction kettle with a polytetrafluoroethylene liner, and conduct a crystallization at 100°C for 24h , after cooling, adjust the pH value of the above solution to 8 with a concentration of 1.0mol / L ammonia water, then perform secondary crystallizati...
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Abstract
The invention discloses a method for detecting pentachlorophenol by an aluminum-doped mesoporous foam material modified electrode. The method comprises the following operating steps: (1) synthesizingaluminum-doped mesoporous foam; (2) preparing an aluminum-doped mesoporous foam modified carbon paste electrode; (3) preparing a standard solution; (4) drawing a standard curve. As a novel silicon dioxide material, the aluminum-doped mesoporous foam material adopted by the method also has the functions of an aluminum-base material besides the good characteristics of large specific surface area, large aperture, three-dimensional foam-like stereoscopic interconnected pore structure, and the like of the traditional mesoporous foam material; due to the characteristics, the aluminum-doped mesoporous foam silicon material becomes a very potential electrode modification material.
Description
technical field [0001] The invention relates to a method for detecting pentachlorophenol, in particular to a method for detecting pentachlorophenol with an aluminum-doped mesoporous foam material modified electrode. Background technique [0002] Pentachlorophenol is a commonly used wood preservative, insecticide, fungicide and herbicide. Under natural conditions, pentachlorophenol has stable chemical properties, is not easily oxidized, and has very little hydrolysis and volatility. Long-term use of pentachlorophenol It will pollute soil and water sources. Then it enters the food chain through soil-plants, water-plants, etc., producing biological toxicity and causing harm to human health. Therefore, it is of great practical significance to establish an accurate, fast, sensitive and convenient pentachlorophenol detection method. [0003] The information disclosed in this Background section is only for enhancing the understanding of the general background of the present inven...
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IPC IPC(8): G01N27/48G01N27/30
CPCG01N27/308G01N27/48
Inventor 蒋翠文牙禹李焘谢丽萍王彦力闫飞燕韦良莫磊兴廖洁韦宇宁何洁陈伟
Owner GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI