In　this　study,　a　new　task-specific　magnetic　nanocomposite　(MNC)　using　aminated　carbon　nanotubes　and　fluorinated　carbon　nanotubes　as　dual　functional　monomers　was　expeditiously　fabricated　via　one-pot　hydrothermal　technology.　The　MNC　was　assessed　for　the　efficiency　of　fluoroquinolone　(FQ)　extraction.　When　paired　with　magnetic　solid-phase　extraction　(MSPE),　the　MNCs　showed　outstanding　performance　in　efficiently　seizing　FQs　via　multiple　interactions,　such　as　dipole-dipole　forces,　fluorous　interactions,　and　hydrogen　bonding.　The　developed　MNC/MSPE　technique　was　used　for　the　detection　of　trace　FQs　in　various　aqueous　samples,　the　detection　limits　varied　from　0.18　ng/L　to　0.61　ng/L,　and　the　relative　standard　deviations　(RSDs)　were　in　the　range　of　2.5–9.7　%.　In　addition,　the　recoveries　with　different　spiked　contents　were　in　the　range　of　82.3–112　%.　Compared　with　existing　methods　for　the　measurement　of　FQs,　the　current　approach　has　several　advantages,　such　as　quickness　and　greenness　in　the　preparation　of　adsorbents,　high　sensitivity,　and　satisfactory　cost-effectiveness.　©　2025　Elsevier　B.V.