Preparation of bisphenol A submicron magnetic molecular imprint and application of same in detection pre-processing of packaged food

A magnetic molecular imprinting and molecular imprinting technology, applied in the fields of material chemistry and food safety, can solve the problems of cumbersome operation steps, low adsorption efficiency, large consumption of organic reagents, etc., to fill the application gap, high adsorption efficiency, and large specific surface area. Effect
CN102304205AInactive Publication Date: 2012-01-04JIANGNAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGNAN UNIV
Publication Date
2012-01-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a preparation of a bisphenol A submicron magnetic molecular imprint and application of the same in the detection pre-processing of packaged food, which belong to the technical field of material chemistry and food safety. A surface molecular imprinting technology and a magnetic solid-phase extraction technology are combined, and a magnetic submicron particle wrapped by a surface molecular imprint polymer (Fe3O4@MIP) is prepared by using a bisphenol A as a template molecule. A magnetic submicron material (Fe3O4) is synthesized by a hydrothermal process, the synthesized Fe3O4 is synthesized into a silicon-wrapped magnetic microsphere (Fe3O4@SiO2) by a sol gel process, the synthesized Fe3O4@SiO2 is coupled with 2-bromo-isobutyryl bromide to form Fe3O4@SiO2@Br with Br groups on the surface, and the synthesized Fe3O4@SiO2@Br is synthesized into a submicron particle with a surface molecular imprint (Fe3O4@MIP) by an atom radical transfer process. The prepared Fe3O4@MIP is used in the detection pre-processing of packaged food which comprises liquid food, liquid food containing a certain quantity of solids and solid food.
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Description

technical field

[0001] The preparation of a submicron magnetic molecular imprint of bisphenol A and its application in the pre-treatment of packaged food detection belong to the technical field of material chemistry and food safety. Background technique

[0002] In recent years, the potential harm caused by long-term exposure to exogenous interfering substances has attracted great attention from the scientific community and the public. Among the exogenous interfering substances, bisphenol A (BPA) is one of the main hazards. Bisphenol A is the main raw material for the production of polycarbonate and epoxy resin, and is also used in phenolic resin, plastic polyester, antioxidant and polyvinyl chloride (PVC) stabilizer, etc., in food packaging materials, container inner wall coatings, etc. has important uses. Bisphenol A penetrates into the food through the liquid components in the packaged food from the food packaging, seriously endangering human health.

[0003] Curre...

Claims

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