{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T17:18:17Z","timestamp":1791220697454,"version":"4.1.0"},"reference-count":27,"publisher":"Wiley","issue":"16","license":[{"start":{"date-parts":[[2013,8,13]],"date-time":"2013-08-13T00:00:00Z","timestamp":1376352000000},"content-version":"vor","delay-in-days":12,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100003787","name":"Natural Science Foundation of Hebei Province","doi-asserted-by":"crossref","award":["B2011201081"],"award-info":[{"award-number":["B2011201081"]}],"id":[{"id":"10.13039\/501100003787","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["21275053"],"award-info":[{"award-number":["21275053"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Separation Science"],"published-print":{"date-parts":[[2013,8]]},"abstract":"<jats:p>A magnetic dispersion extraction method was developed based on a molecularly imprinted magnetic microsphere (<jats:styled-content style=\"fixed-case\">MIMM<\/jats:styled-content>) for the selective clean\u2010up and enrichment of tetracycline antibiotics from milk samples. The <jats:styled-content style=\"fixed-case\">MIMM<\/jats:styled-content>s were prepared by inverse\u2010emulsion suspension polymerization, using doxycycline, trimethylolpropane trimethacrylate, acrylamide, methacrylic acid, and surface\u2010modified <jats:styled-content style=\"fixed-case\">F<\/jats:styled-content>e<jats:sub>3<\/jats:sub><jats:styled-content style=\"fixed-case\">O<\/jats:styled-content><jats:sub>4<\/jats:sub> as a template molecule, crosslinker, functional monomer, and magnetic component, respectively. Synthesis and extraction conditions were optimized for obtaining excellent affinity and high selectivity. The magnetism, covering amount, and selectivity of the magnetic microspheres were characterized by a vibrating sample magnetometer, thermogravimetric analysis, and a competitive recognition experiment. The <jats:styled-content style=\"fixed-case\">MIMM<\/jats:styled-content>s were applied to separate tetracycline antibiotics from milk samples by magnetic dispersion extraction, and an enrichment factor of 9.28 and a good sample clean\u2010up were obtained. The average recoveries of four tetracycline antibiotics were obtained in the range of 74.5\u201393.8% with a precision of 1.2\u20135.2%. The <jats:styled-content style=\"fixed-case\">LOD<\/jats:styled-content>s and <jats:styled-content style=\"fixed-case\">LOQ<\/jats:styled-content>s of the proposed method were in the range of 7.4\u201319.4 and 24.7\u201364.7 \u03bcg\/kg, respectively. The results indicated that magnetic dispersion extraction using <jats:styled-content style=\"fixed-case\">MIMM<\/jats:styled-content>s is a powerful tool for food\u2010sample pretreatment with high selectivity and a simplified procedure.<\/jats:p>","DOI":"10.1002\/jssc.201300429","type":"journal-article","created":{"date-parts":[[2013,6,18]],"date-time":"2013-06-18T11:09:36Z","timestamp":1371553776000},"page":"2656-2663","source":"Crossref","is-referenced-by-count":37,"title":["Preparation of doxycycline\u2010imprinted magnetic microspheres by inverse\u2010emulsion suspension polymerization for magnetic dispersion extraction of tetracyclines from milk samples"],"prefix":"10.1002","volume":"36","author":[{"given":"Yun\u2010Kai","family":"Lv","sequence":"first","affiliation":[{"name":"Key Laboratory of Analytical Science and Technology, College of Chemistry and Environmental Science Hebei University Hebei Province  Baoding P. R. 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