Graeme E. Batley, T. M. Florence
1975
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0
Influential Citations
76
Citations
Quality indicators
Journal
Journal of Electroanalytical Chemistry
Abstract
Abstract Thallium was determined in natural waters by anodic stripping voltammetry at a hanging mercury drop electrode, in acetate buffer pH 4.6+EDTA, after preconcentration and separation on an anion exhange resin. For Pacific Ocean surface waters a mean value of 13.0±1.4 ng Tl l −1 was found, while for freshwater samples the value was 3.7±1.0 ng Tl l −1 . Thermodynamic considerations of thallium speciation predict that both in seawater and freshwater thallium exists primarily in the trivalent state. This was confirmed by experiment.