Szczegóły publikacji
Opis bibliograficzny
Sensitive voltammetric determination of titanium (IV) in catalytic adsorptive mandelic acid-chlorate (V) system on renewable silver amalgam film electrode / Robert PIECH // Electroanalysis : an International Journal Devoted to Fundamental and Practical Aspects of Electroanalysis ; ISSN 1040-0397. — 2013 — vol. 25 no. 3 spec. iss.: Bioelectrochemistry and Electroanalytical Chemistry in France, s. 716–722. — Bibliogr. s. 721–722, Abstr.
Autor
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 72753 |
|---|---|
| Data dodania do BaDAP | 2013-04-03 |
| Tekst źródłowy | URL |
| DOI | 10.1002/elan.201200350 |
| Rok publikacji | 2013 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Electroanalysis |
Abstract
The renewable mercury film electrode, applied for the determination of titanium(IV) ultratraces using differential pulse catalytic adsorptive cathodic stripping voltammetry (DP CAdSV) in the presence of mandelic acid as a ligand and chlorate(V) as an oxidant is represented. The calibration graph obtained for Ti(IV) is linear from 0.05nM (2.39ngL-1) to 95nM (4.55μgL-1) for a preconcentration time of 30s, with correlation coefficient of 0.9995. For the renewable mercury electrode (Hg(Ag)FE) with a surface area of 8.6mm2 the detection limit for a preconcentration time of 180s is as low as 0.006nM (0.29ngL-1). The repeatability of the method at a concentration level of the analyte as low as 23.9ngL-1, expressed as RSD is 1.8% (n=5). The proposed method was successfully applied and validated by studying the certified reference material NWTM-26.3 and simultaneously recovery of Ti(IV) from spiked samples. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
