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A new type of oxygen analyzer utilizing a potentiostatic coulometric titration technique

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Abstract

A new type of oxygen analyzer was constructed utilizing the electrochemical oxygen pump: Pt, air/ZrO2 (+ CaO)/Ar + H2 + H20 gas mixture, Pt. Copper, indium, or tin samples were melted in a circulating Ar + H2 gas mixture; the oxygen content was then determined within 3 minutes from the change in the electrical current passing through the oxygen pump. The analytical values were highly consistent and reliable despite the fairly low oxygen concentrations in the samples. Neither standard samples nor the establishment of blank conditions was necessary. This type of oxygen analyzer appears to be useful for determining oxygen concentrations less than 1 wt ppm.

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Authors and Affiliations

  1. Department of Metallurgical Engineering, Faculty of Engineering, Osaka University, 2-1 Yamada-oka, Suita, 565, Osaka, Japan

    Shinya Otsuka (Instructor) & Zensaku Kozuka (Professor)

Authors
  1. Shinya Otsuka
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  2. Zensaku Kozuka
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Otsuka, S., Kozuka, Z. A new type of oxygen analyzer utilizing a potentiostatic coulometric titration technique. Metall Trans B 16, 113–119 (1985). https://doi.org/10.1007/BF02657496

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  • DOI: https://doi.org/10.1007/BF02657496

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