RT Journal Article
T1 Green chemistry: magnetic dispersive solid phase extraction for simultaneous enrichment and determination of V, Ni, Ti and Ga in water samples by HR-CS ETAAS
A1 Vázquez‑Palomo, Laura
A1 Montoro-Leal, Pablo
A1 García-Mesa, Juan Carlos
A1 López Guerrero, María del Mar
A1 Vereda-Alonso, Elisa Isabel
K1 Química verde
AB This work presents a straightforward, highly sensitive, and cost-effective method for the simultaneous determination of V, Ti, Ni and Ga by high resolution-continuum source electrothermal atomic absorption spectrometer (HR-CS ETAAS) in aqueous environmental samples (tap and seawater samples). The system is based on retention of the analyte onto a novel magnetic nanomaterial (M@GO magnetic graphene oxide) functionalised with methylthiosalicilate (MTS). The formed complexes between the M@GO-MTS and the target analytes were broken, adding 1 mL of nitric acid (6%) and sonication for 5 min. The optimized method achieved detection limits of 0.71 mgL−1 for Ti, 0.20 mgL−1 for V, 0.04 mgL−1 for Ga, 0.66 mgL−1 for Ni. The accuracy of the proposed method was demonstrated by analysing two certified reference materials and by determining the analyte content in spiked environmental water samples. The results obtained using this method were in good agreement with the certified values of the standard reference materials, and the recoveries for the spiked tap water and seawater samples ranged from 94% to 120%.
PB Royal society of chemistry
YR 2024
FD 2024-11
LK https://hdl.handle.net/10630/36094
UL https://hdl.handle.net/10630/36094
LA eng
NO Anal. Methods, 2025, 17, 124
NO University of Málaga (II Plan Propio (B1-2022_20, D5-2023_08 and B4-202319, Universidad de Málaga) and CEI MAR CEI-JD-17, FEDER funds and the Spanish Ministerio de Ciencia e Innovación (fellowship FPU18/05371) and Project PID2021-126794OB-100. Funding for open access charge: Universidad de Málaga/CBUA.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026