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Stabilization of the plasma-jet flame and determination of aluminium and boron in steel

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Summary

A stabilization of the plasma-jet flame was studied for the use of acid solutions, the apparatus was improved and working conditions for the determination of aluminium and boron in steel were examined. The coefficient of variation for the determination of aluminium (0.061%) in steel was 4.9%. These determinations are rather difficult by flame spectrometry or atomic absorption spectrometry using the usual combustion flame because of the formation of stable oxides of Al and B.

Zusammenfassung

Die Stabilisierung der Plasma-Jet-Flamme wurde in Hinblick auf die Verwendung saurer Lösungen untersucht. Die Apparatur wurde verbessert und die Arbeitsbedingungen für die Bestimmung von Al und B in Stahl ausgearbeitet. Der Strukturkoeffizient für die Bestimmung von 0,061% Al in Stahl betrug 4,9%. Diese Bestimmungen sind bei Verwendung von Verbrennungsflammen wesentlich schwieriger durchzuführen, da beständige Oxide von Al und B gebildet werden.

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References

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Authors and Affiliations

  1. The Research Institute of Iron, Steel and other Metals, Tôhoku University, Sendai, Japan

    Hidehiro Gotô & Ikuo Atsuya

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  1. Hidehiro Gotô
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  2. Ikuo Atsuya
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Gotô, H., Atsuya, I. Stabilization of the plasma-jet flame and determination of aluminium and boron in steel. Z. Anal. Chem. 240, 102–110 (1968). https://doi.org/10.1007/BF00531156

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  • DOI: https://doi.org/10.1007/BF00531156

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