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Synchronous analysis device, preparation method and application of bisphenol A and halogenated derivative thereof

An analysis device and a simultaneous analysis technology, which is applied in the directions of measuring devices, analysis materials, material excitation analysis, etc., can solve problems such as the inability to detect bisphenol A halogenated derivatives simultaneously and quickly, and achieve rapid adsorption, high-sensitivity detection, and large-scale The effect of specific surface area

Inactive Publication Date: 2020-12-08
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This solves the technical problem of being unable to simultaneously and quickly detect bisphenol A and its halogenated derivatives in the prior art

Method used

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  • Synchronous analysis device, preparation method and application of bisphenol A and halogenated derivative thereof
  • Synchronous analysis device, preparation method and application of bisphenol A and halogenated derivative thereof
  • Synchronous analysis device, preparation method and application of bisphenol A and halogenated derivative thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] This embodiment provides a simultaneous analysis device for bisphenol A and its halogenated derivatives, which includes: a paper substrate and a composite material modified on the surface of the paper substrate, wherein the composite material includes UiO-66-NH 2 and a molecularly imprinted polymer, wherein the molecularly imprinted polymer is formed by using tetrabromobisphenol A as a template molecule, 3-aminopropyltriethoxysilane as a functional monomer, and tetraethyl orthosilicate as a crosslinking agent. The molecularly imprinted polymer can adsorb bisphenol A and / or its halogenated derivatives.

[0059] Wherein, the paper base can be Whatman filter paper. The analysis device can be, for example, a paper strip of 10×0.5 cm, which is easy to carry and use.

[0060] In this example, the metal-organic framework UiO-66-NH 2 Can be replaced by NH 2 -MIL-101(Fe), NH 2 - MIL-125(Ti) or ZIF-8.

Embodiment 2

[0062] This example provides a method for preparing a simultaneous analysis device for bisphenol A and its halogenated derivatives, see Figure 12 , which includes:

[0063] (1) 5.4mmol of zirconium chloride (ZrCl 4 ) was dissolved in the mixed solution of 10mL concentrated hydrochloric acid and 50mL dimethylformamide (DMF), ultrasonic 10min, obtained dissolved ZrCl 4 Solution A; Dissolve 7.5mmol of 2-aminoterephthalic acid in 100mL DMF, and sonicate for 10min to obtain solution B in which the ligand is dissolved; Mix solution A and solution B, sonicate for 10min, and stir at 80°C for 12h , a coordination reaction occurs. After the reaction is completed, it is cooled and washed by centrifugation, and dried at 150°C for 5 hours to obtain the dried UiO-66-NH 2 powder.

[0064] (2) 100mg of UiO-66-NH 2 The powder was added to 40mL ethanol, ultrasonicated for 30min to form a uniform dispersion, and the UiO-66-NH 2 embellished on Whatman paper substrates (10 × 10 cm in size), ...

Embodiment 3

[0068] This embodiment provides the application of an analysis device for simultaneous detection of bisphenol A and its halogenated derivatives. see Figure 12 , which includes:

[0069] (1) Obtain the extract of the substance to be detected: Weigh 100 mg of the dust of the substance to be detected into a 10 mL glass centrifuge tube, add 3 mL of the mixed extract of n-hexane and acetone, wherein the volume ratio of n-hexane and acetone is 3 :1. Sonicate for 10 minutes, vortex for 2 minutes, and then centrifuge at 5000 rpm for 10 minutes to obtain the supernatant. The above steps were repeated three times, the supernatants obtained three times were combined and then dried by nitrogen blowing, 0.1 mL of methanol was added to make up to volume, and stored at 4°C for future use.

[0070] (2) Add 10 μL of dust extract solution dropwise to one end of the analysis device prepared in Example 2, dry at room temperature, and remove unadsorbed impurities with water droplets at the pla...

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Abstract

The invention discloses a synchronous analysis device, preparation method and application of bisphenol A and halogenated derivatives thereof. The device comprises a paper substrate and a composite material modified on the surface of the paper substrate, the composite material comprises a photocatalytic metal organic framework and a molecularly imprinted polymer, and the molecularly imprinted polymer can adsorb bisphenol A and / or halogenated derivatives thereof. According to the analysis device, bisphenol A and halogenated derivatives thereof are synchronously detected with high sensitivity bytaking 2, 7dichlorofluorescein acetoacetic acid as an active oxygen fluorescent probe by utilizing the recognition of a molecularly imprinted polymer, the separation of paper chromatography and the photocatalytic performance of a metal organic framework. The analysis device prepared by the invention can realize multi-component synchronous analysis, has the advantages of low cost, convenience in use, portability, high sensitivity and the like, and can be used for monitoring bisphenol A and halogenated derivatives thereof in samples with complex environments.

Description

technical field [0001] The invention belongs to the field of environmental monitoring, and more specifically relates to a synchronous analysis device, preparation method and application of bisphenol A and its halogenated derivatives. Background technique [0002] Bisphenol A (BPA) is usually used as the main monomer material for the synthesis of polycarbonate and epoxy resins, and is widely used in coatings on the inside of cans, beverage bottles, thermal paper, and medical devices. Tetrabromobisphenol A (TBBPA) and tetrachlorobisphenol A (TCBPA), the halogenated derivatives of bisphenol A, can be used as brominated flame retardants in textiles, electronic equipment, plastic products, furniture and building materials, etc. Production preparation. Due to the mass production, widespread use and improper handling of these supplies, BPA and its halogenated derivatives will migrate into environmental media, and be detected in air, water, soil, dust and other environmental media,...

Claims

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Application Information

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IPC IPC(8): G01N21/64
CPCG01N21/643G01N2021/6432
Inventor 荆涛曾令帅
Owner HUAZHONG UNIV OF SCI & TECH
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