An electrochemical method for detecting 2,4,6-trichlorophenol

A trichlorophenol and electrochemical technology is applied in the electrochemical field of determining the content of 2,4,6-TCP in a water system, and achieves the effects of high practical value, simple production and low detection limit.

Inactive Publication Date: 2017-06-23
UNIV OF JINAN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the electrocatalytic reduction technology has just started and is still in the stage of laboratory exploration. There are many deficiencies that need to be further solved.

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  • An electrochemical method for detecting 2,4,6-trichlorophenol
  • An electrochemical method for detecting 2,4,6-trichlorophenol
  • An electrochemical method for detecting 2,4,6-trichlorophenol

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Embodiment 1

[0023] An electrochemical method for detecting 2,4,6-TCP.

[0024] 1 Modified electrode production, the steps are: weigh 0.04 g HAuCl 4 4H 2 O was added to 100 mL of ultrapure water and heated to boiling, then 10 mL of 38.8 mmol / L trisodium citrate was pipetted, added to the above solution, and heated to reflux for 15 min to obtain a wine red solution; HS-β -CD and AuNPs were mixed at a molar ratio of 2:1, stirred at room temperature for 24 h, centrifuged to obtain HS-β-CD / AuNPs, washed with ethanol and ultrapure water three times, and dried in vacuum at 60 °C for 4 h; Sonicate 1.5×5.0 cm of ITO in methanol for 10 min and soak in 0.5 mol / L K 2 CO 3 solution for 1 h (the volume ratio of methanol to ultrapure water is 2:1), rinse with a large amount of ultrapure water, and dry with nitrogen to obtain surface hydroxylated ITO; then soak the above-mentioned treated ITO in a solution containing 10 -3 mol / L phenylphosphonic acid aqueous solution for 24 h, took out the electrode...

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Abstract

The invention relates to the technical field of 2,4,6-trichlorophenol analysis and determination, in particular to a self-assembly method for preparing mercapto-β-cyclodextrin and gold nanoparticles to modify the ITO electrode and using it for the quantitative determination of 2, 6-trichlorophenol in a water system Electrochemical method for the content of 4,6‑trichlorophenol. The modified electrode is easy to manufacture, the material is cheap, good in stability, non-toxic, and does not pollute the environment, and the determination method effectively reduces the interference of coexisting substances, and has good selectivity and high sensitivity.

Description

technical field [0001] The invention relates to the technical field of analysis and determination of 2,4,6-trichlorophenol (2,4,6-TCP), in particular to an electrochemical method for determining the content of 2,4,6-TCP in a water system. Background technique [0002] With the widespread application of chlorinated organic compounds in industrial and agricultural production, the amount of polychlorinated phenols produced in the environment is increasing day by day. Most chlorophenols are highly toxic and difficult to be decomposed or biodegraded. They have high chemical stability and are insoluble. In water, it is easy to accumulate in the oil of organisms through the food chain. What's more worth mentioning is that even at trace levels, these substances pose teratogenic, carcinogenic, and mutagenic threats to human health. 2,4,6-TCP is a highly toxic substance in chlorophenols, and can be used as a fungicide, preservative, and defoliant. In organic synthesis, it is widely ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/26G01N27/30G01N27/48
Inventor 周长利郑香丽刘姗花小霞夏方诠田栋
Owner UNIV OF JINAN
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