Synthesis of Magnetic Azo-Linked Covalent Organic Polymer for Rapid Extraction of β-Agonists in Swine Urine Samples.

The illegal use of β-agonists as feed additives can harm animal-derived food safety. In this study, a detection method for β-agonists in swine urine was established by the combination of azo-linked covalent organic polymer-miniaturized magnetic solid…

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