Activation Analysis of Carbon and Nitrogen in Iron, Cobalt and Chromium

M. Isshiki; Y. Fukuda; K. Igaki

doi:10.2320/matertrans1960.27.449

Transactions of the Japan Institute of Metals

Online ISSN : 2432-4701
Print ISSN : 0021-4434
ISSN-L : 0021-4434

Activation Analysis of Carbon and Nitrogen in Iron, Cobalt and Chromium

M. Isshiki, Y. Fukuda, K. Igaki

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Keywords: activation analysis, carbon, nitrogen, cobalt, iron, chromium, hydrogen treatment, zirconium treatment

JOURNAL FREE ACCESS

1986 Volume 27 Issue 6 Pages 449-453

DOI https://doi.org/10.2320/matertrans1960.27.449

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Abstract

Activation analyses of carbon and nitrogen in pure iron, cobalt and chromium have been developed using nuclear reactions, ¹²C(γ, n)¹¹C and ¹⁴N(p, α)¹¹C. Activated carbon was separated in the form of CO₂ by fusing the specimen at 1573 K in oxygen atmosphere. It was found that the contents of carbon and nitrogen are reliably determined in the level of 50 and 10 ppb, respectively. The effect of the hydrogen treatment is also confirmed on the removal of carbon and nitrogen contained in iron, chromium and cobalt.

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