Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/93192
COMPARTIR / EXPORTAR:
logo share SHARE logo core CORE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE

Invitar a revisión por pares abierta
Título

Analytical possibilities of different X-ray fluorescence systems for determination of trace elements in aqueous samples pre-concentrated with carbon nanotubes

AutorMarguí, Eva CSIC ORCID; Zawisza, B.; Skorek, R.; Theato, T.; Queralt Mitjans, Ignacio CSIC ORCID; Hidalgo, M.; Sitko, R.
Palabras claveP-EDXRF
EDXRF
Preconcentration
Carbon nanotubes
WDXRF
Fecha de publicación2013
EditorElsevier
CitaciónSpectrochimica Acta - Part B: Atomic Spectroscopy 88: 192- 197 (2013)
ResumenThis 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 editorhttp://dx.doi.org/10.1016/j.sab.2013.07.004
URIhttp://hdl.handle.net/10261/93192
DOI10.1016/j.sab.2013.07.004
Identificadoresdoi: 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.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo

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.