Summary
Indirect Determination of Oxygen Dissolved in Water by Atomic Absorption Spectrometry
O2 dissolved in aqueous medium reacts quantitatively with thallium metal according to O2+4 Tl+2 H2O →4 Tl++4 OH−. The reaction takes place in a glass column filled up with small pieces of sheet metal. The Tl+ formed is measured by atomic absorption spectrometry. We study the influence of several factors (pH, temperature, salinity of the water). The results obtained from a statistical sample were compared with those provided by the amperometric method for direct determination of dissolved O2 and we found a high degree of consistency between them.
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López Palacios, J., Cabañes, M.C. Indirect determination of oxygen dissolved in water by atomic absorption spectrometry. Mikrochim Acta 87, 89–96 (1985). https://doi.org/10.1007/BF01201988
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DOI: https://doi.org/10.1007/BF01201988