Multi-walled carbon nanotube-impregnated agarose film microextraction of polycyclic aromatic hydrocarbons in green tea beverage

► Novel application of agarose as adsorbent holder in microextraction technique. ► The MWCNTs are immobilized within agarose film. ► MWCNT-AFME offers high analyte recoveries and trace analysis. ► The technique eliminates classical separation techniques. ► The technique minimizes the consumption of organic solvents and chemicals.