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On-line detection method and detection system of hydroquinone in stockpile manure

A technology for hydroquinone and composting is applied in the field of on-line detection of hydroquinone to achieve the effects of avoiding the limitation of detection range, economical cost and sensitive detection method

Inactive Publication Date: 2012-12-26
HUNAN UNIV
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Problems solved by technology

However, due to the influence of the linear detection range, the use of the sensor for actual sample detection has certain limitations

Method used

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  • On-line detection method and detection system of hydroquinone in stockpile manure
  • On-line detection method and detection system of hydroquinone in stockpile manure
  • On-line detection method and detection system of hydroquinone in stockpile manure

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Embodiment Construction

[0024] 1. Preparation of online detection system

[0025] Aiming at the technical scheme of the present invention, the present embodiment first constructs an online detection system of hydroquinone in a kind of compost (see figure 1 ), characterized in that the detection system includes a three-electrode device, an electrochemical analyzer and a neural network analysis device, the three-electrode device is connected to the electrochemical analyzer through a wire, and the electrochemical analyzer is connected to the neural network analysis device; the three The electrode device was modified with laccase-Fe 3 o 4 The carbon paste electrode of the magnetic nanoparticle cross-linked body was used as the working electrode (ie, the laccase sensor), the saturated calomel electrode was used as the reference electrode, and the platinum sheet electrode was used as the counter electrode.

[0026] The above-mentioned laccase sensor was prepared by the following method: firstly, a carbo...

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Abstract

The invention relates to a method for detecting hydroquinone in compost on line, which comprises putting a biosensor in measured solution, utilizing an electrochemical analyzer to analyze current variation data which are adopted by the biosensor, getting response current change characteristic values, response current stabilization time and steady-state current values, outputting the parameter values in a neural network analysis apparatus, and getting the concentration value of hydroquinone after analyzing and calculating. The invention also relates to an on-line detection system which is used in the detecting method, which comprises a three-electrode device, an electrochemical analyzer and a neural network analysis apparatus, wherein the three-electrode device is connected with the electrochemical analyzer, and the electrochemical analyzer is connected with the neural network analysis apparatus, the three-electrode device utilizes a carbon paste electrode which decorates a laccase-Fe3O4 magnetic nano-particle cross-linking body to a working electrode. The one-line detection method and the on-line detection system have the advantages of convenience, high effective, sensitivity, strong anti-interference capability, low production cost and the like.

Description

technical field [0001] The invention relates to an online detection method and system of hydroquinone, in particular to a method and system for detecting hydroquinone by using a biochemical electrode and a neural network model. Background technique [0002] Phenolic substances are very important basic raw materials and by-products in the large-scale organic chemical industry. They exist widely in the environment, are difficult to be degraded biologically or abiotically, and are highly toxic. As a recognized harmful substance, phenol has a great impact on human health and the environment. In the municipal solid waste composting system, there are a variety of phenolic pollutants, and the composting bacteria can secrete various enzymes such as lignin peroxidase, manganese peroxidase, laccase and phenoloxidase, which can Catalyzes the detoxification and oxidation of phenolic substances. Therefore, it is necessary to monitor and control the phenolic substances in the composting...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/558G01N27/327G06F19/00
Inventor 曾光明章毅汤琳晏铭杜春艳黄国和李文卫
Owner HUNAN UNIV
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