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Determination of the zinc and cadmium contents in low-alloyed tin

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1999
Blagojevic_Journal of the Serbian Chemical Society_64_1999_707-720.pdf (1.772Mb)
Аутори
Blagojević, N. Z.
Zejnilović, R. M.
Despić, Aleksandar
Blečić, Ž.
Чланак у часопису
Метаподаци
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Апстракт
The method of anodic linear sweep voltammetry (ALSV) has been used to determine the content of Zn and Cd (up to 4% w/w) in eutectic type binary alloys with Sn. The alloy samples were prepared by casting. The effect of the type and the pH of the electrolyte, as well as of the sweep-rate on the dissolution of Zn and Cd from the alloy during an anodic potentinal-sweep was investigated. It was shown that ALSV is sensitive to low concentrations of both Zn and Cd in the investigated alloys, as well-defined peaks of the dissolution of the two metals were recorded before the massive dissolution of Sn commenced. Well-defined linear dependencies between the quantities of electricity under the dissolution peaks of Zn (Qzn) or Cd (Qcd) and the respective contents of the metals in the alloys were found. Intercepts at the abscissa were found in both investigated systems indicating the formation of solid solutions from which neither Zn nor Cd could be eluted. In both alloys, the smallest amount of th...e alloying component which could be detected was 0.25% (w/w). The application of the ALSV method has several advantages over other analytical methods: it is non-destructive as the dissolution involves only a very thin layer of the alloy; it requires simple and cheap instrumentation; it is fast and relatively sensitive. These make it suitable for routine analysis.

Кључне речи:
analytical determination of Zn and Cd / anodic linear potential sweep / Sn-Cd alloy / Sn-Zn alloy
Извор:
Journal of the Serbian Chemical Society, 1999, 707-720
Издавач:
  • Belgrade : Serbian Chemical Society

ISSN: 0352-5139 (Print) 1820-7421 (Online)

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URI
http://dais.sanu.ac.rs/123456789/287
http://www.itn.sanu.ac.rs/opus4/frontdoor/index/index/docId/546
http://www.itn.sanu.ac.rs/opus4/files/546/Blagojevic_Journal%20of%20the%20Serbian%20Chemical%20Society_64_1999_707-720.pdf
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  • Glavna kolekcija
Институција
Институт техничких наука САНУ

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