A Novel Hydrophobic Fe3O4@SiO2@C18 Magnetic Nanoparticles as Adsorbents to Determine Eight Typical PAHs

Hydrophobic Fe3O4@SiO2@C18 magnetic nanoparticles (MNPs) composites were synthesized. Then it was characterized by TEM, SEM and FT-IR. In combination with HPLC-FLD/VWD, it was applied to extract extract 8 typical PAHs in water. The impact of extraction and analytical conditions on the extraction efficiency were studied in detail. The result shows that Fe3O4@SiO2@C18 MNPs has good extraction effect on the target PAHs. On optimum conditions, the limits of detection, linearity range and relative standard deviation for polycyclic aromatic hydrocarbons were satisfactory.