RT Journal Article
T1 New magnetic chelating sorbent for chromium speciation by magnetic solid phase extraction on-line with inductively coupled plasma optical emission spectrometry
A1 Morales-Benítez, Irene
A1 Montoro-Leal, Pablo
A1 García-Mesa, Juan Carlos
A1 López-Guerrero, María del Mar
A1 Vereda-Alonso, Elisa Isabel
K1 Sólidos -- Propiedades magnéticas
AB A novel sorbent material employing magnetic nanoparticles (MNPs) coupled to graphene oxide (GO) functionalized with 4-aminobenzenesulfonic acid (M@GO-ABS) has been synthesized and applied to develop an inexpensive and automatic method for Cr(III) and Cr(VI) speciation in environmental samples; the developed method combines inductively coupled plasma optical emission spectrometry (ICP-OES) with on-line magnetic solid phase extraction (MSPE). Two magnetic-knotted reactors containing M@GO-ABS were installed in the eight-port injection valve of a flow injection (FI) manifold. Two different eluents were used, one for Cr(VI) (the most toxic chromium species) and one for total Cr concentration. Cr(III) concentration was calculated by the difference between Cr(VI) concentration and total Cr concentration. The optimized method presented detection limits(LOD, peak height) of 0.1 μg L
PB Elsevier
YR 2023
FD 2023
LK https://hdl.handle.net/10630/26291
UL https://hdl.handle.net/10630/26291
LA eng
NO Morales-Benítez, Montoro-Leal, P., García-Mesa, J. C., López Guerrero, M. M., & Vereda Alonso, E. (2023). New magnetic chelating sorbent for chromium speciation by magnetic solid phase extraction on-line with inductively coupled plasma optical emission spectrometry. Talanta (Oxford), 256, 124262–. https://doi.org/10.1016/j.talanta.2023.124262
NO Funding for open access charge: Universidad de Málaga / CBUA
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 19 ene 2026