Analytical possibilities of different X-ray fluorescence systems for determination of trace elements in aqueous samples pre-concentrated with carbon nanotubes
dc.contributor.author
dc.date.accessioned
2016-02-08T09:05:38Z
dc.date.available
2016-02-08T09:05:38Z
dc.date.issued
2013
dc.identifier.issn
0584-8547
dc.identifier.uri
dc.description.abstract
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 caseswere 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
dc.description.sponsorship
This work was supported by the Spanish National Research Program (Project ref. CGL2010-22168-C03-01)
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.relation
info:eu-repo/grantAgreement/MICINN//CGL2010-22168-C03-01/ES/APLICACION DE AGUA NO CONVENCIONAL (TRATADA-DESALADA) Y FANGOS PROCEDENTES DE DEPURADORAS URBANAS Y SU IMPACTO EN EL MEDIO ACUIFERO Y SUELOS. ESTUDIOS DE CAMPO Y LABORATORIO/
dc.relation.isformatof
Reproducció digital del document publicat a: http://dx.doi.org/10.1016/j.sab.2013.07.004
dc.relation.ispartof
© Spectrochimica acta. Part B, Atomic spectroscopy, 2013, vol. 88, p. 192-197
dc.relation.ispartofseries
Articles publicats (D-Q)
dc.rights
Tots els drets reservats
dc.subject
dc.title
Analytical possibilities of different X-ray fluorescence systems for determination of trace elements in aqueous samples pre-concentrated with carbon nanotubes
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/embargoedAccess
dc.embargo.terms
Cap
dc.date.embargoEndDate
info:eu-repo/date/embargoEnd/2026-01-01
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
017748
dc.contributor.funder
dc.relation.ProjectAcronym