Effervescence assisted dispersive liquid-liquid microextraction with extractant removal by magnetic nanoparticles

- Dispersive liquid-liquid microextraction assisted by effervescence is described.
- The in-situ generation of CO2 allows the dispersion of 1-octanol in aqueous samples.
- Bare Fe3O4 magnetic nanoparticles are employed to facilitate the extractant recovery.
- The procedure allows the extraction of triazine herbicides from water samples.
- The limits of detection are in the nanogram per liter range with good precision.