Titrimetric analysis of total mercury ions including mercury(I) ions |
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Authors: | Xin-Gui Li Qiang Dou and Mei-Rong Huang |
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Institution: | (1) Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Materials Science, Shaanxi Normal University, Xi’an, 710062, China; |
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Abstract: | A systematic analytical method is proposed and applied to directly determine the total concentration of Hg(II) and Hg(I) ions
in water. Experimental results demonstrate that this method provides a low detection limit of 0.05 mM and small relative error within 1.5% in an ion concentration range of 0.2–50 mM. The technique is especially applicable for sample solutions that the traditional titration method like Volhard and EDTA complexation titrimetry could not analyze directly. This method could be employed to analyze solutions in any ratio of Hg(II)
and Hg(I) ions including pure Hg(II) or pure Hg(I) ions, exhibiting several advantages, such as simple operation, good reproducibility,
and low cost. |
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Keywords: | |
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