Composite materials based on hybrid mesoporous solids for flow-through determination of ultratrace levels of Cd(ii)

Abstract

In this work we present a solid phase extraction (SPE) flow-through system coupled to graphite furnace atomic absorption spectrometry (GFAAS) for the determination of Cd(ii) at ultratrace levels.

An ion imprinted magnetic organosilica nanocomposite for the selective determination of traces of Cd(ii) in a minicolumn flow-through preconcentration system coupled with graphite furnace atomic absorption spectroscopy

“…[30][31][32][33] In this regard our group has been devoted to studying SPE in ow-through systems holding an MC with ller materials (with and without II) in the last few years. 34,35 In this sense, different arrangements of ow systems using magnetic ller materials immobilized by the action of a permanent magnetic eld have been sporadically reported in the literature. Problems related to material bleeding or need for reloading between measurements discourage this approach.…”

“…In this regard our group has been devoted to studying SPE in flow-through systems holding an MC with filler materials (with and without II) in the last few years. 34,35…”