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Herein, a metal\u2010mediated magnetic molecularly imprinted polymer (mMIP) was rationally designed and synthesized for the specific capture of FUR. The preparations involved the utilization of chromium (III) as the binding pivot, (3\u2010aminopropyl)triethoxysilane as functional monomer, and Fe<jats:sub>3<\/jats:sub>O<jats:sub>4<\/jats:sub> as core, all assembled via free radical polymerization. Both the morphologies and adsorptive properties of the mMIP were characterized using multiple methods. The resulting Cr(III)\u2010mediated mMIP (ChM\u2010mMIP) presented excellent selectivity and specificity toward FUR. Under optimized conditions, the adsorption capacity reached 128.50\u00a0mg\/g within 10 min, and the imprinting factor was 10.41. 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