Electrocatalytic detection method of hydroquinone

Abstract

The invention discloses an electrocatalytic detection method of hydroquinone. The detection method of the hydroquinone comprises the following steps: taking a mixed solution c, diluting the hydroquinone in the mixed solution c, putting the hydroquinone solution into a micro electrolytic tank, connecting with an electric lead, carrying out differential pulse voltammetry scanning, and performing storing; putting the mixed solution c into the micro electrolytic tank, connecting the electric lead, continuously scanning for 10 times by differential pulse voltammetry, performing storing, putting themixed solution c into the micro electrolytic tank, connecting the electric lead, setting a scanning speed of the differential pulse voltammetry, performing scanning and storing; and putting the mixedsolution b into the micro electrolytic tank, connecting the electric lead, continuously carrying out differential pulse voltammetry scanning for 10 times, performing storing, putting the mixed solution b into the micro electrolytic tank, connecting the electric lead, setting the scanning speed of differential pulse voltammetry, and performing scanning and storing. The method has advantages of lowcost, simple operation and a low detection limit.

Description

technical field [0001] The invention belongs to the technical field of hydroquinone detection, and relates to an electrocatalytic detection method, in particular to an electrocatalytic detection method of hydroquinone. Background technique [0002] The electrocatalytic oxidation method is an efficient and practical technology for the degradation of organic pollutants that has only emerged in recent years. This method has stronger oxidation and reduction capabilities than general chemical reactions, consumes little chemical reagents, is strong in application, and is easy to operate and environmentally friendly. Compatibility and other advantages. [0003] In the prior art, electrochemical sensors for hydroquinone detection are mainly based on glassy carbon electrodes and metal electrodes. These working electrodes are characterized by high price, complex production process, and reusability; hydroquinone Oxidation products are easy to passivate the surface of the working elect...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that in the prior art, the electrochemical sensor used for hydroquinone detection is mainly based on glassy carbon electrodes and metal electrodes. These working electrodes are characterized by high price, complex production process, and Repeated use, etc.; hydroquinone oxidation products are easy to passivate the surface of the working electrode, especially the active sites on the electrode surface modified by nano-alloy materials are easily occupied by hydroquinone oxidation products, which cannot be used for multi-purpose use of hydroquinone. At the same time, there are many cleaning steps for the contaminated working electrode, the process is complicated and time-consuming, which is not conducive to the rapid detection of hydroquinone, and an electrocatalytic detection method for hydroquinone is proposed

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