Szczegóły publikacji
Opis bibliograficzny
Ultrasensitive determination of tungsten(VI) on pikomolar level in voltammetric catalytic adsorptive catechol-chlorate(V) system / Robert PIECH, Anna BUGAJNA, Sebastian Baś, Władysław W. KUBIAK // Journal of Electroanalytical Chemistry ; ISSN 1572-6657 . — 2010 — vol. 644 iss. 1, s. 74–79. — Bibliogr. s. 78–79, Abstr.
Autorzy (4)
- AGHPiech Robert
- AGHBugajna Anna
- Baś Sebastian
- AGHKubiak Władysław
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 51688 |
|---|---|
| Data dodania do BaDAP | 2010-05-11 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.jelechem.2010.04.003 |
| Rok publikacji | 2010 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of Electroanalytical Chemistry |
Abstract
The renewable mercury film electrode, applied for the determination of tungsten(VI) ultra traces using differential pulse catalytic adsorptive cathodic stripping voltammetry (DP CAdSV) with presence of catechol as a ligand and chlorate(V) is presented. The calibration graph obtained for W(VI) is linear from 0.025 nM (4.5 ng L-1) to 130 nM (23.9 μg L-1) for a preconcentration time of 30 s, with correlation coefficient of 0.9989. For the renewable mercury electrode (Hg(Ag)FE) with a surface area of 4.4 mm2 the detection limit for a preconcentration time of 60 s is as low as 0.2 ng L-1. The repeatability of the method at a concentration level of the analyte as low as 0.09 μg L-1, expressed as RSD is 3.1% (n = 5). The proposed method was successfully applied and validated by studying the certified reference material CTA-VTL-2 and simultaneously recovery of W(VI) from spiked water samples.
