Determination of Lanthanum, Samarium and Europium in Manganese Nodules by Neutron Activation

Journal Article · Sun Jan 01 04:00:00 EST 1961 · Bulletin of the Chemical Society of Japan

DOI:https://doi.org/10.1246/bcsj.34.701· OSTI ID:4843726

Kawashima, Toshi; Osawa, Masumi; Mochizuki, Yoko; Hamaguchi, Hiroshi

A gamma spectrometric method was developed for simultaneous determination of microgram amounts of lanthanum, samarium, and europium without chemical separation of each other. The sample was irradiated for 2 to 3 days, 5 hr each day, at a flux of the order of 10¹¹n/ cm²/sec. The rare earth mixture purified by lanthanum fluoride cycles was used for gamma -ray counting at a given pulse height peak. The activity of each component was evaluated by resolving the decay curves obtained, and the amount calculated by comparing the activity with that of each monitor. (P.C.H.)

• Research Organization: Tokyo Univ. of Education
• Sponsoring Organization: USDOE
• NSA Number: NSA-15-027565
• OSTI ID: 4843726
• Journal Information: Bulletin of the Chemical Society of Japan, Journal Name: Bulletin of the Chemical Society of Japan Journal Issue: 5 Vol. 34; ISSN 0009-2673
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACTIVATION ANALYSIS
CHEMISTRY
COUNTERS
EUROPIUM
GAMMA RADIATION
GAMMA SPECTROMETERS
IRRADIATION
LANTHANUM
LANTHANUM FLUORIDES
MANGANESE
MONITORING
NEUTRON FLUX
NEUTRONS
PULSES
QUANTITATIVE ANALYSIS
RARE EARTHS
SAMARIUM