Polarographic determination of selenium in the presence of copper ion

HASDEMİR E., SOMER G.

The Analyst, vol.115, no.3, pp.297-299, 1990 (SCI-Expanded, Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 115 Issue: 3
  • Publication Date: 1990
  • Doi Number: 10.1039/an9901500297
  • Journal Name: The Analyst
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.297-299
  • Keywords: Anodic slime, Polarography, Selenium determination
  • Ankara University Affiliated: No

Abstract

A polarographic method for the determination of Se in anodic slime is proposed. For this purpose several supporting electrolytes were investigated and it was found that, because of the interference from other elements present in the slime, Se could not be determined directly. In HClO4 (pH 2-3), the Cu and Se polarographic waves overlapped; the total diffusion current of this wave was measured, then the amount of Cu was determined in ammonia buffer (pH 8-9), its corresponding diffusion current was subtracted from the total diffusion current and the amount of Se was calculated.