Determination of Cd, Co, Cu, Fe and Ni at parts per billion level in high-purity gallium by graphite furnace atomic absorption spectrometry (GFAAS) |
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| Authors: | Sunil Jai Kumar S. Natarajan J. Arunachalam S. Gangadharan |
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| Affiliation: | (1) Analytical Chemistry Division, Bhabha Atomic Research Centre, 400 085 Bombay, India |
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| Abstract: | Summary The determination of Cd, Co, Cu, Fe and Ni in 6N gallium by GFAAS is reported. The analytes are extracted as pyrrolidine dithiocarbamates into methyl-iso-butyl-ketone (MIBK) in the presence of tartrate. The conditions of extraction, quantity of reagents required and the matrix interference aspects are discussed. The method offers one-step matrix removal and preconcentration, leading to low experimental blanks. |
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