Electrochemical method for detecting 2,4,6-trichlorophenol

A trichlorophenol, electrochemical technology, applied in the field of analysis and determination of 2,4,6-trichlorophenol (2,4,6-TCP), to achieve the effect of good stability, low detection limit and good selectivity

Inactive Publication Date: 2015-05-13
UNIV OF JINAN
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  • Summary
  • 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.

Method used

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  • Electrochemical method for detecting 2,4,6-trichlorophenol
  • Electrochemical method for detecting 2,4,6-trichlorophenol
  • Electrochemical method for detecting 2,4,6-trichlorophenol

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Experimental program
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Embodiment 1

[0026] 2 Use the above HS-β-CD / AuNPs / SAM / ITO modified electrode to measure 2,4,6-TCP in the solution, the specific steps are:

[0027] (1) In the electrolytic cell containing 10 mL of PBS solution with pH 6.5, the modified electrode HS-β-CD / AuNPs / SAM / ITO was used as the working electrode, the Ag / AgCl electrode was used as the reference electrode, and the platinum electrode was used as the counter electrode; The experiment was carried out on the CHI842C electrochemical comprehensive tester, and its attached computer software was used for the collection and processing of experimental data; a certain amount of 2,4,6-TCP solution was added to the electrolytic cell with a micro-injector, and at 0.0 Perform differential pulse scanning within the potential range of ~0.8 V, record differential pulse voltammogram, and measure peak current value I p1 ; According to this method, add different concentrations of 2,4,6-TCP standard solution, you can get the corresponding peak current value...

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Abstract

The invention relates to the technical field of assay determination of 2,4,6-trichlorophenol, in particular to an electrochemical method for quantitatively detecting the content of 2,4,6-trichlorophenol in a water system by using an HS-beta-CD / AuNPs / ITO modified electrode prepared with a self-assembly method. The modified electrode is simpler to manufacture, the material is low in price, good in stability, non-toxic and environment-friendly, and the detection method effectively reduces interference of coexisting substances and is good in selectivity and high in 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 a method for preparing mercapto-β-cyclodextrin (HS-β-CD) by self-assembly method An electrochemical method for the quantitative determination of 2,4,6-TCP content in aqueous systems by modifying ITO electrodes with gold nanoparticles (AuNPs). 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 heal...

Claims

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Application Information

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Patent Type & Authority Applications(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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