Extractive spectrophotometric determination of mercury with thiobenzoylacetone; Analysis of waste water.
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概要
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Thiobenzoylacetone was used for the extraction and spectrophotometric determination of mercury(II). The complex quantitatively extracted at pH 4.0 with 10 ml of 0.001 M reagent in benzene. After removing the excess of the reagent with the buffer solution of pH 12.0, the complex was measured at 345 nm against reagent blank prepared similarly. The system adhered to Beer's law in the concentration range of 0.6 to 12.1 μg of mercury per ml. The molar extinction coefficient was 1.7×10<SUP>4</SUP> and the sensitivity was 0.011 μg/cm<SUP>2</SUP>. The complex was stable for 48 h. The extraction was quantitative within 10 min of equilibbrium. It was possible to determine mercury in the presence of a large number of ions (1 : 1000). The method was found to be applicable to the analysis of waste water from chloro-alkali industries.
- 公益社団法人 日本化学会の論文
著者
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Khopkar S.
Department of Chemistry, Indian Institute of Technology
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Murti M.
Department of Chemistry, Indian Institute of Technology
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