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Rhodium Determination by Atomic Absorption Spectrometry Using the Nitrous Oxide-Acetylene Flame

Volume 23, Number 5 (Oct. 1969) Page 480-482

Atwell, M.G.; Hebert, J.Y.


A study of the interferences encountered in determining rhodium in aqueous solutions by atomic absorption spectrometry is described. In this study, solutions containing rhodium and varying concentrations of a number of the more common elements and acids were aspirated into air-acetylene and nitrous oxide-acetylene flames. It was found that very serious interferences were encountered with the air-acetylene flame, while the nitrous oxide-acetylene flame was essentially free from such interferences. Optimum excitation parameters and the precision of replicate analyses are presented.