Magnetic solid phase extraction based on magnetite/reduced graphene oxide nanoparticles for determination of trace isocarbophos residues in different matrices.

Highlights: [•] Magnetite/reduced graphene oxide (MRGO) nanocomposites are synthesized. [•] MRGO is used as an adsorbent for determination of isocarbophos. [•] Effects of synthesis conditions on adsorption performance are well investigated. [•] MRGO shows good extraction ability, reuse stability and manipulative convenience. [•] Different sample matrices have little interference with the performance of MRGO. [Copyright &y& Elsevier]