Determination of palladium by a new preconcentration method (Mg-W cell)-electrothermal atomic absorption spectrometry |
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Authors: | K Ohta J Ogawa T Mizuno |
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Institution: | (1) Department of Chemistry for Materials, Faculty of Engineering, Mie University, Tsu, Mie 514, Japan, JP |
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Abstract: | A new concentration method for palladium using Mg-W cell-electrodeposition has been developed. The method was combined with
electrothermal atomic absorption spectrometry (ETAAS) with a tungsten tube atomizer. The detection limit of palladium by this
method was 0.37 ng ml–1 (3 S/N). The severe interferences on the AAS signal of palladium caused by large amounts of Al, Ca, Cu, Fe, K, Na, Pb and
Zn were eliminated by the Mg-W cell-electrodeposition method. The method was adapted for the determination of palladium in
environmental samples. The recovery of palladium spiked environmental samples was in the range of 102 to 114%.
Received: 12 August 1996 / Revised: 16 October 1996 / Accepted: 7 November |
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