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In this work, the perfluorobenzene‐bonded silica sorbent was tested to adsorb polycyclic aromatic hydrocarbons in hexane. In the comparison experiments, the perfluorobenzene‐bonded sorbent's performance was better than octadecyl silica sorbent and phenyl‐bonded silica sorbents, which indicated that the π‐hole···π bonds between perfluorobenzene and the polycyclic aromatic hydrocarbons were stronger...