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Method for detecting octylphenol in textile based on molecular imprinting technology

A molecular imprinting technology and molecular imprinting technology, applied in the field of analysis and detection, can solve the problems of high instrument cost, long detection time, complicated operation process, etc., and achieve the effect of strong specificity and low detection cost.

Pending Publication Date: 2020-05-26
南京海关工业产品检测中心
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above traditional analysis methods have high accuracy, but the operation process is complicated, the instrument cost is high, and the detection time is long

Method used

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  • Method for detecting octylphenol in textile based on molecular imprinting technology
  • Method for detecting octylphenol in textile based on molecular imprinting technology
  • Method for detecting octylphenol in textile based on molecular imprinting technology

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Experimental program
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Effect test

Embodiment 1

[0030] Test Instruments and Consumables

[0031] Electrochemical experiments were carried out on an electrochemical workstation CHI-660E (Shanghai Chenhua Instrument Co., Ltd.), screen-printed electrodes (Nanjing Zhongke Electrode Co., Ltd.), conductive carbon paste working electrodes, and silver / silver chloride reference electrodes.

[0032] Octylphenol-polyaniline titanium dioxide mixture

[0033] Add 1.5 mmol of aniline and 0.5 mmol of octylphenol into 5 mL of isopropanol and stir for 1 hour to form a mixed solution of aniline-octylphenol.

[0034] 0.15g titanium dioxide nanoparticles, 3ml isopropanol, 0.8molHCL, 0.7mmol FeCl 3 ·6H 2 O and 27ml of secondary water were mixed, and stirred continuously at 0°C for 30min to form a titanium dioxide particle dispersion.

[0035] After mixing 5ml of aniline-octylphenol mixed solution and 30mL of titanium dioxide particle dispersion, blow nitrogen gas, deoxygenate, stir for 24 hours, then use acetone as precipitant, repeatedly pr...

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Abstract

The invention provides a method for detecting octylphenol in a textile based on a molecular imprinting technology, which belongs to the field of analysis and detection. According to the method, aimingat octylphenol serving as a detection target object, aniline serves as a monomer, octylphenol (OP) serving as a detection target serves as a template molecule, nano titanium dioxide serves as a carrier, and the OP-MIP / PPY / TiO2 molecularly imprinted nano composite is obtained through a free radical polymerization reaction under the action of an oxidizing agent FeCl3. Hydrogen bonds are formed between hydroxyl groups on the octylphenol and nitrogen atoms on the polyaniline, so that the octylphenol can be embedded into a polymer skeleton to form pores in the polymerization process. The nano titanium dioxide has a large specific surface area, so that the nano titanium dioxide becomes a good carrier. After template molecule octylphenol is eluted, the obtained compound is modified on the surface of a silk-screen printing electrode, specific recognition of octylphenol can be achieved, and a rapid, sensitive and high-specificity octylphenol detection method is established.

Description

technical field [0001] The invention belongs to the field of analysis and detection, and in particular relates to a method for detecting octylphenol in textiles based on molecular imprinting technology. Background technique [0002] Alkylphenols mainly include octylphenol and nonylphenol. In the textile production process, they are mainly used as pretreatment additives in printing and dyeing auxiliaries, such as scouring agents, wetting agents, penetrating agents, etc. The biodegradation rate of alkylphenols is only 0-9%, which can exist in the environment for a long time; at the same time, these substances are similar to estrogen substances, which can disturb the normal hormone secretion process of the human body. EU Directive 2003 / 53 / EC stipulates that the content of octylphenol and nonylphenol in chemicals and their preparations used in the textile industry cannot exceed 0.1%. The value of textiles and clothing exported from my country to Europe reaches 10 billion US dol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/38G01N27/26G01N27/30G01N27/327
CPCG01N1/38G01N27/26G01N27/30G01N27/3278
Inventor 曹锡忠王晓萍吴梦笔周静珠
Owner 南京海关工业产品检测中心
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