Pérez Ràfols, ClaraTrechera, PedroSerrano i Plana, NúriaDíaz Cruz, José ManuelAriño Blasco, CristinaEsteban i Cortada, Miquel2018-10-242019-02-042017-02-040039-9140https://hdl.handle.net/2445/125567The use of an antimony film coated on a screen-printed carbon electrode (ex-situ SbSPCE) is proposed for the determination of Pd(II) at ppb levels in natural samples by adsorptive stripping voltammetry using dimethylglyoxime as chelating agent. Ex-situ SbSPCE produces a better analytical performance as compared to a commercially sputtered bismuth screen-printed electrode (BispSPE). The detection and quantification limits were 2.7 and 9.0 µg L-1 respectively with a good linear behaviour in the wide examined concentration range (from 1 µg L-1 up to 100.0 µg L1, R2= 0.998). The proposed ex-situ SbSPCE showed an excellent repeatability with a relative standard deviation of 0.5 % for ten successive measurements and a very good reproducibility (1.6 % for three different ex-situ SbSPCE units within series of ten repetitive assays). Moreover, the ex-situ SbSPCE was successfully applied for the determination of low concentration levels of Pd(II) in spiked tap water with a very high reproducibility (0.2 %) and providing equivalent results to those achieved by ICP-MS measurements26 p.application/pdfengcc-by-nc-nd (c) Elsevier B.V., 2017http://creativecommons.org/licenses/by-nc-nd/3.0/esPal·ladi (Element químic)VoltametriaPalladiumVoltammetryinfo:eu-repo/semantics/article6673612018-10-24info:eu-repo/semantics/openAccess28340698