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
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[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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