Functionalized nanofibers mat prepared through thiol-ene "click" reaction as solid phase extraction adsorbent for simultaneous detection of florfenicol and paracetamol residues in milk.

Due to the significant differences in physical and chemical properties of various veterinary drugs, sample pretreatment is still the bottleneck of simultaneous detection of multiple veterinary drug residues. In order to achieve quantitative determination of two different types of veterinary drug residues (florfenicol and paracetamol) in milk, 1-allyl-3-methylimidazolium chloride (AmimCl) functionalized nanofibers mat (AmimCl-NFsM) was prepared through thiol-ene "click" reaction and applied as a new solid phase extraction adsorbent. The preparation parameters were systematically investigated and optimized through dynamic adsorption experiments.