“…However, the request for new adsorbents is an important factor in improving analytical sensitivity, and precision in SPE techniques. To date, many adsorbents, such as active carbon, 22 modied resin, 23 fullerenes, 24 and conductive polymers, 25,26 have been employed in SPE. A relatively novel achievement in the eld of SPE is the use of magnetic nanoparticles (MNPs), which leads to so-called magnetic solid phase extraction (MSPE).…”