Imidazolium-based task-specific ionic liquid for selective Ag, Cu, Pd and Pt determination by means of dispersive liquid-liquid microextraction and inductively coupled plasma optical emission spectrometry
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Título: | Imidazolium-based task-specific ionic liquid for selective Ag, Cu, Pd and Pt determination by means of dispersive liquid-liquid microextraction and inductively coupled plasma optical emission spectrometry |
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Autor/es: | Lledó, David | Grindlay, Guillermo | Serrano, Raquel | Gras, Luis | Sansano, Jose M. |
Grupo/s de investigación o GITE: | Espectrometría Atómica Analítica (GEAA) | Síntesis Asimétrica (SINTAS) |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Analítica, Nutrición y Bromatología | Universidad de Alicante. Departamento de Química Orgánica | Universidad de Alicante. Instituto Universitario de Síntesis Orgánica |
Palabras clave: | Metals | Task-specific ionic liquid | Microextraction | Inductively coupled plasma | Sample preparation |
Fecha de publicación: | 7-abr-2023 |
Editor: | Elsevier |
Cita bibliográfica: | Spectrochimica Acta Part B: Atomic Spectroscopy. 2023, 204: 106672. https://doi.org/10.1016/j.sab.2023.106672 |
Resumen: | This work explores chelating capabilities of 1-butyl-2-diphenylphosphino-3-methylimidazolium hexafluorophosphate (BDPPIMPF6) as a task-specific ionic liquid (TSIL) for metal extraction/preconcentration procedures. To this end, metal extraction by BDPPIMPF6 for 21 elements (Ag, Al, As, Au, Co, Cr, Cu, Fe, Ir, Mn, Ni, Pb, Pd, Pt, Re, Rh, Ru, Sc, Ti, V, and Zn) were evaluated. This TSIL specifically forms chelating complexes with several elements of Group 10 (Pd and Pt) and Group 11 (Ag and Cu) of the Periodic Table. Chelating capabilities of BDPPIMPF6 has been exploited for developing a novel methodology for the simultaneous determination of Ag, Cu, Pd, and Pt by means of dispersive liquid-liquid microextraction and inductively coupled plasma optical emission spectrometry detection (DLLME-ICP-OES). This methodology afforded enrichment factors of 14 to 70 and limits of detection (LoD) of 0.2–2 μg L−1 for Ag, Cu, Pd and Pt. These LoD values were between 110 and 35-fold lower than those obtained by direct analyses with ICP-OES (i.e., no DLLME treatment). Finally, the proposed method has been applied to the analysis of Ag, Cu, Pd, and Pt in water and pharmaceutical products. Irrespective of matrix characteristics, quantitative recoveries were found for all the elements investigated thus highlighting methodology robustness. |
Patrocinador/es: | Financial support was provided by the Spanish Ministerio de Ciencia, Innovación y Universidades (project RED2018-102387-T) the Spanish Ministerio de Economía, Industria y Competitividad, Agencia Estatal de Investigación (AEI) and Fondo Europeo de Desarrollo Regional (FEDER, EU) (projects CTQ2016-76782-P, CTQ2016-80375-P, CTQ2017-82935-P and PID2019-107268GB-I00), the Generalitat Valenciana (IDIFEDER/2021/013), Medalchemy S. L. (Medalchemy-18T) and the University of Alicante (VIGROB-050; UADIF17-42 UAUSTI16-02, VIGROB-068 and UAUSTI21-05). David Lledó thanks the Spanish Ministerio de Ciencia, Innovación y Universidades for the fellowship (FPU15/00097). |
URI: | http://hdl.handle.net/10045/133638 |
ISSN: | 0584-8547 (Print) | 1873-3565 (Online) |
DOI: | 10.1016/j.sab.2023.106672 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1016/j.sab.2023.106672 |
Aparece en las colecciones: | INV - GEAA - Artículos de Revistas INV - SINTAS - Artículos de Revistas |
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Lledo_etal_2023_SpectrochimActaPartB.pdf | 580,02 kB | Adobe PDF | Abrir Vista previa | |
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