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Application of N-(2-aminoethyl)-3-aminopropyltrimethoxysilane in detection of hydroquinone

A technology of aminopropyltrimethoxysilane and hydroquinone, applied in the field of chemical analysis, can solve the problems of long reaction time, high detection limit, cumbersome pretreatment process, etc., and achieve fast reaction speed, good specificity, The effect of easy operation

Active Publication Date: 2018-03-02
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the present invention proposes the application of a kind of N-(2-aminoethyl)-3-aminopropyltrimethoxysilane in detecting hydroquinone, and a kind of detection test paper, which solves the problem of At present, the detection of hydroquinone relies on large-scale equipment, cumbersome pre-treatment process, long reaction time, and high detection limit.

Method used

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  • Application of N-(2-aminoethyl)-3-aminopropyltrimethoxysilane in detection of hydroquinone
  • Application of N-(2-aminoethyl)-3-aminopropyltrimethoxysilane in detection of hydroquinone
  • Application of N-(2-aminoethyl)-3-aminopropyltrimethoxysilane in detection of hydroquinone

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Embodiment 1

[0032] The present embodiment provides a kind of method that colorimetric method detects hydroquinone, comprises the steps:

[0033] 1) Take a standard concentration of hydroquinone solution and add it to the N-(2-aminoethyl)-3-aminopropyltrimethoxysilane solution to make a standard color comparison card;

[0034] Dissolve DAMO in water, prepare DAMO solution at a volume ratio of 1:5 as a detection solution, take a known concentration of hydroquinone standard solution, add it to 4 times the volume of detection solution, and vortex the mixed solution for 2 minutes Finally, photograph the color of the solution with a digital camera to make a standard color card;

[0035] 2) Take the hydroquinone solution to be detected, add it to the N-(2-aminoethyl)-3-aminopropyltrimethoxysilane solution, and make a contrast color card, and compare the color card with the standard color card Comparative detection of hydroquinone.

[0036] Take the solution to be tested, add it to 4 times the ...

Embodiment 2

[0038] The present embodiment provides a method for detecting hydroquinone by absorptiometry, comprising the steps of:

[0039] 1) Get the hydroquinone solution of standard concentration, after adding in the N-(2-aminoethyl)-3-aminopropyltrimethoxysilane solution, obtain the absorbance value of the hydroquinone solution of standard concentration curve or equation;

[0040] Dissolve DAMO in water, prepare DAMO solution at a volume ratio of 1:5 as a detection solution, take a known concentration of hydroquinone standard solution, add it to 4 times the volume of detection solution, and vortex the mixed solution for 2 minutes Finally, utilize a spectrophotometer to scan the ultraviolet-visible spectrum of the above-mentioned mixed solution, take the absorbance value as the ordinate, and the concentration of hydroquinone as the abscissa, draw a working curve, and obtain a one-dimensional linear equation;

[0041] 2) Take the hydroquinone solution to be detected, add it to the N-(2...

Embodiment 3

[0044]This example provides a method for the detection of hydroquinone by colorimetry. A series of hydroquinone standard solutions (0-1000 μM) with concentration gradients are prepared, added to 4 times the volume of DAMO aqueous solution, and vortexed at room temperature Take pictures after shaking for 2 minutes. figure 2 It shows that with the increase of the concentration of hydroquinone, the color of the solution changes from colorless to orange-red, and finally becomes bright red, and the semi-quantitative detection of the concentration of hydroquinone can be realized according to the color change.

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Abstract

The invention discloses an application of N-(2-aminoethyl)-3-aminopropyltrimethoxysilane in detection of hydroquinone, which includes two methods of colorimetric detection and absorption photometry. The invention also discloses detection test paper, which has simple operation and high reaction speed, and can achieve quick semi-quantitative detection to concentration of the hydroquinone just through color change, so that problems that a detection method of hydroquinone in the prior art is depended on large-scale instrument and equipment, has complex pretreatment steps and long reaction time, and is high in detection limit are solved. The detection method has good specificity and is only directed at the hydroquinone and is not available for catechol or resorcinol, so that problems that in detection in the prior art, quantitative detection of the hydroquinone is interfered by impurities and cannot avoid doping of the catechol or resorcinol can be solved completely.

Description

technical field [0001] The invention belongs to the technical field of chemical analysis and relates to the detection of hydroquinone, in particular to the application and detection method of N-(2-aminoethyl)-3-aminopropyltrimethoxysilane in detecting hydroquinone. Background technique [0002] Hydroquinone, also known as 1,4-benzenediol, is a polyphenolic compound that plays an important role in a large number of biological and industrial productions, such as the production of coal tar, the development of developers, and paper printing used in the process. Therefore, it has become the main pollution component in industrial wastewater and agricultural production activities. And clinical studies have shown that hydroquinone is a potential carcinogen, which can enter the human body through the skin, oral cavity, respiratory tract and other ways to cause serious side effects on the central nervous system. Therefore, it is of great significance to establish an analytical metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78G01N21/31
CPCG01N21/31G01N21/78G01N2021/775
Inventor 王丽刘英男曹媛媛白耀文李睿张敏
Owner NORTHWEST A & F UNIV
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