IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
artículos
Título:
Accurate iron quantification in colloids and nanocomposites by a simple UV-Vis protocol
Autor/es:
MOYA, CARLOS; TORRAS, MIQUEL; ROIG, ANNA; PASQUEVICH, GUSTAVO A.
Revista:
MIKROCHIMICA ACTA
Editorial:
SPRINGER WIEN
Referencias:
Año: 2020 vol. 187
ISSN:
0026-3672
Resumen:
The selection and comparative study is reported ofcalibration curves to quantify iron by a simple UV-Vis protocol based on the formation ofiron (III) chloride complexes. The reliability ofeach calibration curve was evaluated using statistical and analytical parameters. The robustness of each calibration curve using superparamagnetic iron oxide nanoparticles (SPIONs) of different sizes and surface functionalization is demonstrated . We have also evaluated the effect of the particle coating and estimated the minimum time to ensure the full oxidation ofiron (II) to (III) in sample solutions. Results fromUV-Vis are comparable with those obtained from ICP-OES and from other spectroscopic techniques to quantify the iron. We advocate the proposed protocol as a simple and non-expensive route to determine accurately the iron content in colloidal and nanocomposite iron-based materials.