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Enhancement effect of iron addition for the decomposition of organic mercury as studied by continuous flow analysis with cold vapor atomic absorption spectrometric detection

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Summary

A continuous flow analysis is described for the determination of total mercury by cold vapor atomic absorption spectrometry. Organic mercury compounds such as methylmercury(II) chloride, ethylmercury(II) chloride and phenylmercury(II) chloride were decomposed by potassium peroxodisulphate with addition of ferric chloride as catalytic reagent. The reducing reagent used was tin(II) chloride in sodium hydroxide solution. With 1,000 mg Fe/l added in the decomposition process, we found that methylmercury(II) chloride and ethylmercury(II) chloride gave response signals similar to those of mercury(II) chloride. The proposed method was applied to the analysis of total mercury in waste water.

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Author notes

  1. Edison Munaf

    Present address: Department of Chemistry, Faculty of Mathematics and Natural Sciences, Andalas University, Padang, West Sumatra, Indonesia

Authors and Affiliations

  1. Department of Applied Chemistry, School of Engineering, Nagoya University, 464, Nagoya, Japan

    Edison Munaf & Hiroki Haraguchi

  2. Research Center for Resource and Energy Conservation, Nagoya University, 464, Nagoya, Japan

    Toyohide Takeuchi

Authors
  1. Edison Munaf
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  2. Toyohide Takeuchi
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  3. Hiroki Haraguchi
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Additional information

Permanent address: Department of Chemistry, Faculty of Mathematics and Natural Sciences, Andalas University, Padang, West Sumatra, Indonesia

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Munaf, E., Takeuchi, T. & Haraguchi, H. Enhancement effect of iron addition for the decomposition of organic mercury as studied by continuous flow analysis with cold vapor atomic absorption spectrometric detection. Fresenius J Anal Chem 342, 154–156 (1992). https://doi.org/10.1007/BF00321712

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  • DOI: https://doi.org/10.1007/BF00321712

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