Szczegóły publikacji
Opis bibliograficzny
Influence of the transport conditions on determination of trace arsenic by cathodic stripping voltammetry / R. PIECH, W. W. KUBIAK, J. GOŁAŚ // Polish Journal of Chemistry / Polish Academy of Sciences. Committee of Chemistry, Polish Chemical Society ; ISSN 0137-5083. — Tytuł poprz.: Roczniki Chemii. — 2004 — vol. 78 no. 9, s. 1667–1678. — Bibliogr. s. 1677–1678
Autorzy (3)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 21425 |
|---|---|
| Data dodania do BaDAP | 2005-04-05 |
| Rok publikacji | 2004 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Polish Journal of Chemistry |
Abstract
The cathodic stripping voltammetry has been used to study arsenic(III) and its determination in presence of copper. Dependence of stripping peak on convective transport during the deposition step for the system seems to be unique and its character indicates that stirring rate is an important factor and thus it should be carefully optimized. The optimal stirring rate depends on cell and stirring bar geometry, electrode size, copper concentration and deposition time. The existing in literature ambigouity on selenium influence on arsenic peak current is discussed and explained by taking into consideration the observed dependences. Detection limit for As(III) as low as 0.4 nM (0.03 ppb) at 50 s deposition time could be obtained when optimal stirring conditions were applied.
