Determination of mercury by cold vapour atomic absorption spectrometry after preconcentration with dithizone immobilized on surfactant-coated alumina
- 1 January 1998
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Analytical Atomic Spectrometry
- Vol. 13 (4) , 305-308
- https://doi.org/10.1039/a707520k
Abstract
Mercury(II) and methylmercury cations at the sub-ppb level were adsorbed quantitatively from aqueous solution onto a column packed with dithizone immobilized on sodium dodecyl sulfate coated alumina. The trapped mercury was then back-extracted into the aqueous phase with 1 M hydrobromic acid and determined by cold vapour atomic absorption spectrometry by utilizing the reaction with sodium tetrahydroborate. Mercury(II) and methylmercury cations were completely recovered from water with a preconcentration factor of 100. The analytical procedure was applied to the determination of mercury(II) and methylmercury in river and tap water.Keywords
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