Determination of ultratrace amounts of ruthenium by differential pulse voltammetry using factorial design for optimization

Authors: Ali A Ensafi, K Zarei, T Khayamian

Publication date: 1999/10/31

Journal name: Microchemical journal

Volume: 63

Pages: 235-242

Publisher: Elsevier

A simple and sensitive electrochemical technique for the convenient determination of trace
amounts of ruthenium was developed, based on the catalytic current of a Ru (III)–bromate
system on the surface of a hanging mercury electrode at about− 0.2 V versus Ag/AgCl
reference electrode. The influence of reagent and instrumental variables was completely
studied by factorial design analysis. Optimum analytical conditions for the determination of
ruthenium were established. Ruthenium (III) can be determined in the range 0.005–0.350 ...