Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/93192
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Analytical possibilities of different X-ray fluorescence systems for determination of trace elements in aqueous samples pre-concentrated with carbon nanotubes |
Autor: | Marguí, Eva CSIC ORCID; Zawisza, B.; Skorek, R.; Theato, T.; Queralt Mitjans, Ignacio CSIC ORCID; Hidalgo, M.; Sitko, R. | Palabras clave: | P-EDXRF EDXRF Preconcentration Carbon nanotubes WDXRF |
Fecha de publicación: | 2013 | Editor: | Elsevier | Citación: | Spectrochimica Acta - Part B: Atomic Spectroscopy 88: 192- 197 (2013) | Resumen: | This study was aimed to achieve improved instrumental sensitivity and detection limits for multielement determination of V. Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Se, Pb and Cd in liquid samples by using different X-ray fluorescence (XRF) configurations (a benchtop energy-dispersive X-ray fluorescence spectrometer, a benchtop polarised energy-dispersive X-ray fluorescence spectrometer and a wavelength-dispersive X-ray fluorescence spectrometer). The preconcentration of metals from liquid solutions consisted on a solid-phase extraction using carbon nanotubes (CNTs) as solid sorbents. After the extraction step, the aqueous sample was filtered and CNTs with the absorbed elements were collected onto a filter paper which was directly analyzed by XRF. The calculated detection limits in all cases were in the low ng mL(-1) range. Nevertheless, results obtained indicate the benefits, in terms of sensitivity, of using polarized X-ray sources using different secondary targets in comparison to conventional XRF systems, above all if Cd determination is required. The developed methodologies, using the aforementioned equipments, have been applied for multielement determination in water samples from an industrial area of Poland. (C) 2013 Elsevier B.V. All rights reserved. | Versión del editor: | http://dx.doi.org/10.1016/j.sab.2013.07.004 | URI: | http://hdl.handle.net/10261/93192 | DOI: | 10.1016/j.sab.2013.07.004 | Identificadores: | doi: 10.1016/j.sab.2013.07.004 issn: 0584-8547 |
Aparece en las colecciones: | (Geo3Bcn) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
22
checked on 12-mar-2024
WEB OF SCIENCETM
Citations
23
checked on 26-feb-2024
Page view(s)
301
checked on 28-mar-2024
Download(s)
117
checked on 28-mar-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.