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dc.contributor.authorMarguí, Eva-
dc.contributor.authorFontàs, Claudia-
dc.contributor.authorHidalgo, M.-
dc.contributor.authorQueralt Mitjans, Ignacio-
dc.date.accessioned2009-09-28T09:59:00Z-
dc.date.available2009-09-28T09:59:00Z-
dc.date.issued2008-11-
dc.identifier.citationSpectrochimica Acta Part-B, 63(11): 1329-1332 (2008)en_US
dc.identifier.issn0584-8547-
dc.identifier.urihttp://hdl.handle.net/10261/17199-
dc.description.abstractThis work was aimed at improving the instrumental sensitivity and detection limits for Cd determination in liquid samples by using conventional Wavelength Dispersive X-ray Fluorescence (WDXRF) instrumentation equipped with Rh-anode X-ray sources. The fact that the background is drastically reduced when using activated membranes as a preconcentration tool to collect Cd from liquid samples permits an improvement of the sensitivity compared with the direct analysis of liquid samples. Instrumental WDXRF parameters, as well as the study of Cd-K and Cd-L series spectral lines, were evaluated to select the best conditions for Cd quantitation. The Cd-Lα spectral line was found to be the best choice in terms of sensitivity and repeatability. The calculated detection limit when this spectral line was used to carry out the measurements was 0.17 mg L− 1 Cd, which is suitable for Cd determination in most liquid samples involved in environmental studies.en_US
dc.description.sponsorshipThis research has been undertaken in the framework of the Spanish National Research Program (Project ref. CGL2007-66861-C4).en_US
dc.format.extent239983 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsclosedAccessen_US
dc.subjectWDXRFen_US
dc.subjectCadmiumen_US
dc.subjectLiquid sampleen_US
dc.subjectPreconcentrationen_US
dc.subjectMembraneen_US
dc.titleImproved instrumental sensitivity for Cd determination in aqueous solutions by using WDXRF, Rh-target tube, instrumentationen_US
dc.typeArtículoen_US
dc.identifier.doi10.1016/j.sab.2008.08.002-
dc.description.peerreviewedPeer revieweden_US
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.sab.2008.08.002en_US
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