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Chromium(VI) determination at a rotating disc electrode

✍ Scribed by Neil G. Smart; Michael L. Hitchman; Ray O. Ansell; J.Duncan Fortune

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
324 KB
Volume
292
Category
Article
ISSN
0003-2670

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✦ Synopsis

Results are given for a method of determination of CI(VI) by amperometry at a solid electrode. By using a fluoride containing electrolyte at a controlled pH and an amalgamated gold electrode, previously reported problems of electrode passivation by C&II) have been overcome. The method gives reproducible results and can be used for monitoring Cr(VI) with a detection limit of 0.9 x 10m9 mol cmm3 at the 95% confidence level.

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Influence of supporting electrolyte on f
Influence of supporting electrolyte on ferricyanide reduction at a rotating disc electrode
✍ W.M. Taama; R.E. Plimley; K. Scott πŸ“‚ Article πŸ“… 1996 πŸ› Elsevier Science 🌐 English βš– 289 KB

The reduction of ferricyanide ion at nickel, stainless steel and platinum rotating disc electrodes has been studied in KOH and K&O, supporting electrolytes. The effects of time, cathode material and supporting electrolyte were investigated. It was concluded that the limiting current supported by fer