Potentiometric titration of trace amounts of mercury with dithiooxamide |
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| Authors: | Stanisław Rubel Miroslawa Ługowska |
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| Affiliation: | Institute of Fundamental Problems in Chemistry, University of Warsaw, WarszawaPoland |
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| Abstract: | Titration with dithiooxamide in potassium hydrogenphthalate medium (pH 5–6) is suitable for the determination of mercury in concentrations above 0.05 ppm. The precision in the range 0.05–1.0 ppm Hg is ? 4%. Significant amounts of sulphate, nitrate, Zn2+, Cd2+ and Pb2+ and small amounts of Ni2+, Co2+ and Al3+ can be tolerated, but Fe3+, Cu2+ and Ag+ interfere. |
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