Magnetic solid-phase extraction material and preparation method and application thereof

An extraction and magnetic solidification technology, applied in chemical instruments and methods, preparation of test samples, and other chemical processes, can solve problems such as poor dispersion, lack of dispersion, and poor stability, and achieve cheap and easy-to-obtain raw materials. Simple preparation method and high dispersibility

Active Publication Date: 2016-05-25
SHANDONG ANALYSIS & TEST CENT +1
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Problems solved by technology

[0004] Although the chemical co-precipitation method for preparing ferroferric oxide is relatively mature, the ferroferric oxide particles synthesized by it are relatively small, only more than ten nanometers, and the dispersion is poor, which is not conducive to the coating of the subsequent carbon

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  • Magnetic solid-phase extraction material and preparation method and application thereof
  • Magnetic solid-phase extraction material and preparation method and application thereof
  • Magnetic solid-phase extraction material and preparation method and application thereof

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[0032] The application will be further described below in conjunction with specific embodiments.

[0033] The preparation method of aminosilanized magnetic nano-carbon spheres includes the following steps:

[0034] 1) Preparation of amino silanized magnetic carbon nanospheres

[0035] The raw materials for preparing this new material, ferroferric oxide and ferroferric oxide magnetic nano-carbon spheres are synthesized according to the method reported in the literature, but with certain modifications: accurately weigh 1.35g of ferric chloride hexahydrate and add it to the container In a 75ml ethylene glycol beaker, after stirring until completely dissolved, 3.6g of sodium acetate (NaAc) was added, and stirring was continued until NaAc was completely dissolved. Then the solution was transferred to a 100ml polytetrafluoroethylene lined cup, sonicated for 5 minutes, placed in a stainless steel reactor and tightened, and then placed in an oven at 200°C for 8h reaction. The ferroferric o...

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Abstract

The invention discloses a magnetic solid-phase extraction material and a preparation method and application thereof. The preparation method includes the following steps that 1, ferroferric oxide is prepared; 2, magnetic ferromagnetic oxide nanometer carbon spheres are prepared: the ferroferric oxide prepared in the step 1 is dispersed in a glucose solution, reaction is performed at the temperature of 160-200 DEG C for 5-8 hours to obtain magnetic ferroferric oxide nanometer carbon spheres; 3, amino silanized magnetic nanometer carbon spheres are prepared: the magnetic ferroferric oxide nanometer carbon spheres prepared in the step 2 are dispersed in anhydrous ethanol, then (3-aminopropyl) triethoxy silane is added, and reaction is performed at the temperature of 30-60 DEG C for 6-30 hours to obtain the magnetic solid-phase extraction material. The preparation method is simple and safe and easy to implement, and the raw materials are cheap and easy to obtain. The prepared novel material serves as a magnetic solid-phase extraction adsorbent and is successfully applied to efficient separation and sensitivity analysis of bisphenol A, bisphenol AF, tetrabromobisphenol A and other polar environmental pollutants in the environment.

Description

technical field [0001] The invention belongs to the field of new materials, and in particular relates to a magnetic solid-phase extraction material and its preparation method and application. Background technique [0002] With the rapid development of modern industry, the environmental pollution caused by bisphenols has attracted widespread attention all over the world. Such as bisphenol A, bisphenol AF and tetrabromobisphenol A, are widely used in modern industrial products, which leads to their widespread presence in the environment. These compounds can reduce sperm count, affect fertility and sexual maturity, and can also increase the risk of cancer. Therefore, in order to protect human health, it is very necessary to quickly analyze the pollution caused by these compounds and conduct risk assessment, and it is necessary to establish a fast, simple and sensitive analysis method. [0003] Due to the low concentration of bisphenols in the environment, it is very difficult...

Claims

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Application Information

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IPC IPC(8): B01J20/281B01J20/28B01J20/22B01J20/20B01J20/30G01N1/28
CPCB01J20/205B01J20/22B01J20/28009B01J20/28019B01J20/281G01N1/28
Inventor 赵汝松龚盛祥王霞宋新力王珊珊王晓利邓泽慧
Owner SHANDONG ANALYSIS & TEST CENT
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