Electrochemical method for detecting anthracene-phenanthrene resultant of polycyclic aromatic hydrocarbon

A technique for combining polycyclic aromatic hydrocarbons anthracene and anthracenphenanthrene, which is applied in the field of electrochemical analysis and determination, can solve the problems of cumbersome electrode preparation, low sensitivity and selectivity, and complicated test conditions, and achieve simple and convenient synthesis, no environmental pollution, The effect of cheap materials

Inactive Publication Date: 2013-03-20
UNIV OF JINAN
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Problems solved by technology

The above-mentioned methods all have defects such as tedious electrode preparation, complicated test conditions, and low sensitivity and selectivity.

Method used

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  • Electrochemical method for detecting anthracene-phenanthrene resultant of polycyclic aromatic hydrocarbon
  • Electrochemical method for detecting anthracene-phenanthrene resultant of polycyclic aromatic hydrocarbon
  • Electrochemical method for detecting anthracene-phenanthrene resultant of polycyclic aromatic hydrocarbon

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Embodiment 1

[0021] The synthesis steps of the probe material are as follows: weigh 0.04g of graphene oxide and dissolve it in an appropriate amount of water, heat and stir, and raise the temperature to 75°C, then add 40mg of thiourea, raise the temperature to 90°C, and then add 2g of NaBH 4 , stirred, reacted for 24 hours, and then dialyzed the solution to obtain the probe material TH-GNs.

[0022] Modified electrode production, the steps are: weigh 0.0020g of probe material, add it into 1.0mL of Nafion solution, and mix well by ultrasonic. A micro-sampler draws 10uL and drops it on the surface of the glassy carbon electrode, and bakes it under an infrared lamp to prepare an electrochemically modified electrode (TH-GNs / GCE).

[0023] Utilize above-mentioned modified electrode to measure anthraphenanthrene in the solution, concrete steps are:

[0024] (1) In the electrolytic cell containing 10mL PBS buffer solution (pH6.5), the above-mentioned modified electrode TH-GNs / GCE was used as the...

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Abstract

The invention relates to the technical field of electrochemical analysis and measurement, and in particular relates to a method for detecting the anthracene-phenanthrene resultant; according to the method, thionine is as a probe and is mixed with graphene to prepare an electrochemical modified electrode, and then the electrochemical modified electrode is used for quantitative detection of anthracene-phenanthrene resultant. The functional modified electrode in which a mesoporous material is modified by using the probe has the advantages that the material synthesis is simple and convenient, the modified electrode is relatively simple to prepare, the material is low in price, the electrode is easy to update, good in reproducibility and free of toxicity and does not cause environment pollution, and moreover by utilizing the detection method, the interference of coexisting substances is effectively reduced; and selectivity and sensation are high.

Description

technical field [0001] The invention relates to the technical field of electrochemical analysis and measurement, in particular to a method for using thiogene as a probe to mix with graphene to prepare an electrochemically modified electrode and using it for quantitative detection and determination of the amount of anthracene in phenanthrene. Background technique [0002] Anthracene and phenanthrene widely exist in the wastewater discharged from the production of textiles, pharmaceuticals, papermaking, dyes and other industries, and have serious toxic effects on humans, animals, and plants. As the main organic pollutants in the environment, polycyclic aromatic hydrocarbons, their source very broad. And because of its stable ring structure, it is difficult to be degraded in nature, so it is continuously enriched in organisms, which is extremely harmful to humans. And in our daily life, we will come into contact with these PAHs unconsciously. Examples include organic processi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/48
Inventor 周长利徐帅卫茂超刘珊
Owner UNIV OF JINAN
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