A novel superparamagnetic ATP/Fe3O4/PANI nanocomposite was first introduced in MDSPE.
ATP/Fe3O4/PANI nanocomposites exhibited fast adsorption and desorption kinetics.
An excellent sorbent-to-sorbent reproducibility was demonstrated in the procedure.
A wider linear range and good recoveries with low LODs were achieved.
The ATP/Fe3O4/PANI-based MDSPE was effective in detecting BUs in river samples.