Comparison between magnetic and non magnetic multi-walled carbon nanotubes-dispersive solid-phase extraction combined with ultra-high performance liquid chromatography for the determination of sulfonamide antibiotics in water samples

1. Herrera-Herrera, A.V.
2. Hernández-Borges, J.
3. Afonso, M.M.
4. Palenzuela, J.A.
5. Rodríguez-Delgado, M.Á.