Fe3O4–SiO2–graphene oxide–amino acid ionic liquid magnetic solid-phase extraction combined with inductively coupled plasma optical emission spectrometry for speciation of Cr(iii) and Cr(vi) in environmental water

Abstract

This developed method, based on the combination of functionalized Fe3O4–SiO2–GO–AAIL and ICP-OES, is capable of remarkable selectivity towards Cr(iii).