A New Type of Bismuth Electrode for Electrochemical Stripping Analysis Based on the Ammonium Tetrafluorobismuthate Bulk-Modified Carbon Paste

作者：Sopha Hanna; Baldrianova Lucie; Tesarova Eva; Grinciene Giedre; Weidlich Tomas; Svancara Ivan; Hocevar Samo B^*

来源：Electroanalysis, 2010, 22(13): 1489-1493.

DOI：10.1002/elan.201070010

• Ammonium tetrafluorobismuthate
• Carbon paste electrode
• Anodic stripping voltammetry
• Cadmium
• Lead

A carbon paste electrode bulk-modified with ammonium tetrafluorobismuthate (BiF(4)-CPE) was developed and examined in the anodic stripping voltatnmetric mode for measurement of selected trace heavy metals. The BiF4-CPE has revealed a favorable performance in more acidic solutions (pH 0.5-2.5) in the presence of dissolved oxygen for Cd(II) and Pb(II) as model metal ions at the low mu g L(-1) concentration level. In comparison with the bismuth-oxide bulk-modified carbon paste electrode and the other two bismuth film-plated carbonaceous substrate electrodes examined, the BiF(4)-CPE proved to be another attractive variant of the environmentally friendly bismuth-based electrodes, particularly convenient for analysis of acidified water samples.

• 出版日期2010-7