Cotton-supported graphene functionalized with aminosilica nanoparticles as a versatile high-performance extraction sorbent for trace organic analysis.

Cotton fibers were functionalized, following the coating of fibers with graphene oxide (GO), the covalent attachment of aminosilica nanoparticles and the reduction to the cotton-GR-aminosilica material. Employing the cotton-supported graphene (GR)-aminosilica material, a novel and easily applicable extraction mode was put forward. Several groups of analytes were employed such as PAHs, phthalates, musks, phenolic endocrine disrupters and haloacetic acids to test the applicability of the functionalized cotton for extraction purposes.