SPECTROGRAPHIC DETERMINATION OF TRACE BORON IN GRAPHITE FOR NUCLEAR REACTORS (in Japanese)
Journal Article
·
· J. At. Energy Soc. Japan
Two procedures are described for the spectrographic determination of 0.002 to 3 ppm of boron in graphite. In the first method, preliminary concentration is carried out by the removal of the graphite by ashing in the presence of La/sub 2/O/sub 3/. Then the boron in La/sub 2/O/sub 3/ is determined by the carrierdistillation method. In the second method, a sample in the form of powder is compressed into pellets with the aid of a phenol-formaldehyde resin as binding medium, and the pellets are arched at 7 amp d-c. By means of display microphotometry, the peak height of B at 2497.73 A is compared with that of the NO( gamma ) band component at 2497.14 A. (auth)
- Research Organization:
- Japan Atomic Energy Research Inst., Tokyo
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-015573
- OSTI ID:
- 4053583
- Journal Information:
- J. At. Energy Soc. Japan, Journal Name: J. At. Energy Soc. Japan Vol. Vol: 3
- Country of Publication:
- Country unknown/Code not available
- Language:
- Japanese
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