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Preparation method for molecularly imprinted solid-phase extraction columns of anthraquinone sensitizing disperse dyes

A technology of solid phase extraction column and solid phase extraction column, which is applied in the field of preparation of molecularly imprinted solid phase extraction column of anthraquinone sensitized disperse dyes, can solve the problems such as no reports of molecularly imprinted solid phase extraction column, and achieve High selectivity and enrichment capacity, strong selectivity and low production cost

Inactive Publication Date: 2015-06-17
NINGBO MUNICIPAL CENT FOR DISEASE CONTROL & PREVENTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, there is no report on the molecularly imprinted solid-phase extraction column of anthraquinone sensitizing disperse dyes

Method used

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  • Preparation method for molecularly imprinted solid-phase extraction columns of anthraquinone sensitizing disperse dyes
  • Preparation method for molecularly imprinted solid-phase extraction columns of anthraquinone sensitizing disperse dyes
  • Preparation method for molecularly imprinted solid-phase extraction columns of anthraquinone sensitizing disperse dyes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The preparation method of the anthraquinone-type sensitizing disperse dye molecularly imprinted solid-phase extraction column in this example includes the following steps:

[0030] Preparation of anthraquinone-sensitized disperse-dyed magnetic graphene-based molecularly imprinted polymers:

[0031] (a) FeSO 4 and FeCl 3 ·6H 2 O is dissolved in 100 mL of water to give Fe 2+ , Fe 3+ Molar concentrations of 0.2mol / L, 0.6mol / L solutions, the solution was ultrasonically dispersed for 15 minutes, then 50 mg of graphene was added, and the ultrasonic dispersion was continued for 1 hour;

[0032] (b) Add 0.1moL of anthraquinone-type sensitizing disperse dye template Molecular Disperse Blue 1 to the resultant of step (a), and adjust the pH value to 11 with ammonia water at 80°C, then at 80°C, at 600r / min Stir the reaction for 1 h to obtain a product with black solid powder;

[0033] (c) Carry out magnetic separation to the product of step (b), and the obtained black solid p...

Embodiment 2

[0040] The preparation method of the anthraquinone-type sensitizing disperse dye molecularly imprinted solid-phase extraction column in this example includes the following steps:

[0041] Preparation of anthraquinone-sensitized disperse-dyed magnetic graphene-based molecularly imprinted polymers:

[0042] (a) FeSO 4 and FeCl 3 ·6H 2 O is dissolved in 100 mL of water to give Fe 2+ , Fe 3+ Molar concentrations of 0.18mol / L, 0.58mol / L solutions, the solution ultrasonic dispersion 10min after adding 45mg graphene, and continue ultrasonic dispersion 1.5h;

[0043] (b) Add 1.0 mol of anthraquinone-type sensitizing disperse dye template Molecular Disperse Blue 3 to the resultant of step (a), and adjust the pH value to 10 with ammonia water at 82°C, then at 82°C, at 620r / min Stirring and reacting for 1.2h, the product with black solid powder was obtained;

[0044] (c) Carry out magnetic separation to the product of step (b), and the black solid powder obtained is washed successi...

Embodiment 3

[0050] The preparation method of the anthraquinone-type sensitizing disperse dye molecularly imprinted solid-phase extraction column in this example includes the following steps:

[0051] Preparation of anthraquinone-sensitized disperse-dyed magnetic graphene-based molecularly imprinted polymers:

[0052] (a) FeSO 4 and FeCl 3 ·6H 2 O is dissolved in 100 mL of water to give Fe 2+ , Fe 3+ Molar concentrations of 0.22mol / L, 0.62mol / L solutions, the solution was ultrasonically dispersed for 20min, then 55mg of graphene was added, and the ultrasonic dispersion was continued for 2h;

[0053] (b) Add 0.5 mol of anthraquinone-type sensitizing disperse dye template Molecular Disperse Blue 7 to the resultant of step (a), and adjust the pH value to 12 with ammonia water at 80°C, then at 80°C, at 650r / min Stirring and reacting for 1.5h, the product with black solid powder was obtained;

[0054] (c) Carry out magnetic separation to the product of step (b), and the black solid powder...

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Abstract

The invention relates to a preparation method for molecularly imprinted solid-phase extraction columns of anthraquinone sensitizing disperse dyes. As molecularly imprinted polymers are high in selectivity, and graphene and molecules provided with the aromatic structure can be separated, enriched and purified through the Pi-Pi bond interaction force, the preparation method combines the high selectivity of the molecularly imprinted polymers and the high adsorptive capacity of graphene on the anthraquinone sensitizing disperse dyes provided with the aromatic structure, and the prepared solid-phase extraction columns have the characteristics of being high in specific selectivity and high in enrichment efficiency on the anthraquinone sensitizing disperse dyes; the enrichment capability of the product on a target analyte is 50-500 times of that of the ordinary commercial solid-phase extraction pillaret; when being used for 10 times, the molecularly imprinted solid-phase extraction columns still have relatively high selectivity and high enrichment capability on the trace amount of the residual anthraquinone sensitizing disperse dyes in the sample, and the recovery rate is greater than 96.6%.

Description

technical field [0001] The invention relates to a preparation method of an anthraquinone allergenic disperse dye molecularly imprinted solid-phase extraction column. Background technique [0002] Allergenic disperse dyes (allergenic disperse dyes, ADDs) refer to certain disperse dyes that can cause skin, mucous membrane or respiratory allergies of humans or animals. As a class of chemical pollutants containing aromatic structures, ADDs have attracted widespread attention at home and abroad due to their water pollution status and the exposure of related food safety incidents. These chemical pollutants can be metabolized and decomposed into aromatic amines after entering the human body, and have side effects such as high toxicity, high residue, and "three causes" (carcinogenic, teratogenic, and mutagenic). The EU ecological textile standard Oeko.Tex Standard 1001151 lists 20 kinds of allergenic disperse dyes, and stipulates that the content of allergenic disperse dyes in prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/285B01J20/30B01D15/08
Inventor 陈晓红赵永纲金米聪潘胜东
Owner NINGBO MUNICIPAL CENT FOR DISEASE CONTROL & PREVENTION
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