Magnetic molecularly-imprinted polymer for identifying and enriching varieties of trace antibiotics and preparation method and application thereof

Abstract

The invention discloses a magnetic molecularly-imprinted polymer for identifying and enriching varieties of trace antibiotics and a preparation method and application thereof. The method comprises the following steps of mixing multiple types of template molecules and functional monomers, then, carrying out prepolymerization, then, adding surface modified Fe3O4 magnetic fluid, a cross-linking agent and an initiating agent so as to carry out polymerization reaction, collecting a polymer, which is obtained after the polymerization reaction is ended, with a magnetic substance, eluting the template molecules, then, washing with deionized water, and then, drying, thus obtaining the magnetic molecularly-imprinted polymer for identifying and enriching various of trace antibiotics. According to the magnetic molecularly-imprinted polymer for identifying and enriching varieties of trace antibiotics and the preparation method and application thereof, the varieties of trace antibiotics can be selectively identified and enriched and quickly, simply and conveniently separated at one time, so that the cost and time are greatly reduced, the efficiency is effectively increased, and the magnetic molecularly-imprinted polymer has a broad application prospect in the pretreatment of complicated samples in the fields of food, environment and the like.

Description

Technical field [0001] The invention relates to a magnetic molecularly imprinted polymer capable of identifying and enriching multiple types of trace antibiotics, and a preparation method and application thereof. Background technique [0002] Foods with excessive antibiotic residues are becoming "invisible killers" that imperceptibly endanger human health. The phenomenon of "unconscious victimization", "passive victimization" and "helpless victimization" are widespread, becoming a hot issue in the current food safety situation in my country. In addition, due to the progress of the times and the development of science and technology, the research on the impact of pollutants on human health is gradually deepening. The international community’s regulations on food and water standards are increasing, and the restrictions are becoming more and more stringent. The problem of antibiotic residue pollution analysis is getting Close attention at home and abroad. Due to the wide variety ...

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Problems solved by technology

Due to the variety and quantity of antibiotics, it is very difficult to establish the detection standards of antibiotics

As the application of antibiotics becomes more and more diversified and complicated, the detection of antibiotic residues is not limited to the detection of a single type of antibiotic residues. The detection of a single type of drug residues has disadvantages such as time-consuming, labor-intensive, and low efficiency. At present, many countries in the world While focusing on the simultaneous detection of multiple types of residues, it is extremely important to establish a simple and reliable method for the identification, enrichment, and detection of multiple types of antibiotics and their analogs

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