Advanced
Trace Measurement of Ruthenium by Adsorptive Stripping Voltammetry
Trace Measurement of Ruthenium by Adsorptive Stripping Voltammetry
Journal of the Korean Chemical Society. 1997. May, 41(5): 246-250
  • Published : May 00, 1997
Download
PDF
Export by style
Article
Author
Metrics
Cited by
About the Authors
Czae, Myung Zoon
Kwon, Young Soon
Kim, So Jin

Abstract
In the presence of optimum amounts of hydroxylamine, trace ruthenium(III) can be conveniently determined in acidic (boric) media by coupling catalytic hydrogen processes with adsorptive accumulation of the catalyst, using differential pulse voltammetry. Cyclic voltammetry was used to characterize the redox and interfacial processes. Optimal experimental conditions were found to be a stirred borate (0.015 M, pH 2.5) solution containing 0.55 M hydroxylamine, a preconcentration potential of - 0.70 V, and a scan rate of 5 mV/s. With a 7 min accumulation period the detection limit was 3${\times}$10-10 M. The possible interferences by other platinum group metals are investigated.