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Determination of oxygen in gallium arsenide by3He activation analysis using substoichiometric precipitation

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Abstract

Distillation of fluoride as fluorosilicic acid and substoichiometric precipitation as lanthanum fluoride was studied for the determination of oxygen in gallium arsenide by3He activation analysis. Fluoride could be separated substoichiometrically with a good reproducibility by two distillations and successive precipitation with lanthanum. The oxygen concentration in gallium arsenide prepared by the horizontal Bridgman technique was 10 to 36 ppb and increased a little along the front, middle and tail portions in the crystal.

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Shikano, K., Kudo, K. & Kobayashi, K. Determination of oxygen in gallium arsenide by3He activation analysis using substoichiometric precipitation. Journal of Radioanalytical and Nuclear Chemistry, Articles 91, 81–90 (1985). https://doi.org/10.1007/BF02036312

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  • DOI: https://doi.org/10.1007/BF02036312

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