Abstract
A rapid and simple preconcentration method by selective adsorption using activated carbon as an adsorbent and acetylacetone as a complexing agent is described for the determination of a trace amount of beryllium by graphite furnace atomic absorption spectrometry. The beryllium-acetyl-acetonate compler is adsorbed easily onto activated carbon at pH 8-10. The activated carbon which adsorbed the beryllium-acetylacetonate complex was separated and dispersed in pure water. The resulting suspension was introduced directly into the graphite furnace atomizer. The determination limit was 0.6 ng/L (S/N=3), and the relative standard deviation at 0.25 μg/L was 3.0-4.0 (n=6)
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