Determination of nitrogen in uranium-plutonium mixed oxide fuel by gas chromatography after fusion in an inert gas atmosphere

Toshiaki Hiyama, Toshio Takahashi, Katsuichiro Kamimura

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

A gas chromatographic technique has been developed for the determination of nitrogen in uranium-plutonium mixed oxide fuel after fusion in an inert gas atmosphere. When the sample and pure iron powder in a graphite crucible were heated to approximately 2500°C by a resistance heating furnace, a large amount of carbon monoxide was evolved with a small amount of nitrogen and hydrogen. A gas chromatograph equipped with a pre-cut system was used for the separation of nitrogen from the carbon monoxide. Nitrogen separated by the gas chromatograph was determined by means of a thermal conductivity detector. Only 100 mg of the sample was used, and the analysis requires about 10 min. No specific skills for glove-box work are necessary. The relative standard deviation and detection limit (3σ-criterion)were less than 5% and 9μg g-1, respectively. The present method is not only applicable to the analysis of research samples but also to the quality control of uranium-plutonium mixed oxide fuel production lines.

Original languageEnglish
Pages (from-to)131-137
Number of pages7
JournalAnalytica Chimica Acta
Volume345
Issue number1-3
DOIs
Publication statusPublished - Jun 20 1997

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Mixed oxide fuels
Plutonium
Noble Gases
Uranium
plutonium
Atmosphere
Gas chromatography
Gas Chromatography
Oxides
uranium
gas chromatography
Nitrogen
Fusion reactions
Gases
oxide
Carbon Monoxide
atmosphere
nitrogen
gas
carbon monoxide

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy

Cite this

Determination of nitrogen in uranium-plutonium mixed oxide fuel by gas chromatography after fusion in an inert gas atmosphere. / Hiyama, Toshiaki; Takahashi, Toshio; Kamimura, Katsuichiro.

In: Analytica Chimica Acta, Vol. 345, No. 1-3, 20.06.1997, p. 131-137.

Research output: Contribution to journalArticle

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