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Continuous micro flow monitoring method for total mercury at sub-ppb level in wastewater and other waters using cold vapor atomic absorption spectrometry

Kontinuierliche Mikromethode zur Durchflußüberwachung von Gesamtquecksilber im Sub-ppb-Bereich in Abwasser und anderen Wässern mit Hilfe der Kaltdampf-AAS

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  • Environmental and Geological Materials
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Summary

An automated continuous monitoring method for total mercury at sub-ppb level based on cold vapor atomic-absorption-“continuous micro flow analysis“ is developed. The method uses continuous micro flow sample partial digestion, reduction and extraction in small bore tubes at low flow rates of reagents. Tin(II) chloride in sodium hydroxide solution was used as a reducing reagent. A mixed solution of potassium peroxodisulphate and copper(II) ion was used as oxidizing and catalytic reagent, respectively. The method was successfully applied to the completely continuous monitoring of total mercury in both wastewater and saline water without a heating digestion bath.

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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. Research Center for Resource and Energy Conservation, Nagoya University, Chikusa-ku, 464, Nagoya, Japan

    Masashi Goto

  2. Department of Applied Chemistry, Faculty of Engineering, Nagoya University, Chikusa-ku, 464, Nagoya, Japan

    Edison Munaf & Daido Ishii

Authors
  1. Masashi Goto
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  2. Edison Munaf
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  3. Daido Ishii
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Goto, M., Munaf, E. & Ishii, D. Continuous micro flow monitoring method for total mercury at sub-ppb level in wastewater and other waters using cold vapor atomic absorption spectrometry. Z. Anal. Chem. 332, 745–749 (1988). https://doi.org/10.1007/BF01129768

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  • DOI: https://doi.org/10.1007/BF01129768

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