Determination of clenbuterol from pork samples using surface molecularly imprinted polymers as the selective sorbents for microextraction in packed syringe

- We introduced a sol-gel imprinting technology to prepare surface molecularly imprinted polymers (SMIPs) for clenbuterol.
- The SMIPs exhibited porous structures, good thermal stability, high adsorption capacity, and high rate of mass transfer rate.
- The SMIPs were used as the selective sorbent for microextraction in packed syringe (MEPS).
- The SMIPs-MEPS-HPLC method exhibited the advantages of simplicity, rapidity, and low solvent consumption.