A magnetic polymer adsorbent based on porous polystyrene microspheres for efficient extraction of conotoxins in biological fluids

), high accuracy (recoveries ranging from 85.3% to 92.9%) and excellent repeatability (RSDs varied from 1.3% to 2.8%). Furthermore, the adsorbent maintained good reusability over six adsorption-desorption cycles, indicating its potential as an efficient candidate for pharmacokinetic studies of conotoxins.