Authors:
T. Honda Musashi Institute of Technology Atomic Energy Research Laboratory 971 Ozenji, Asaoku 215 Kawasakishi, Kanagawa Japan

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T. Oi Sophia University Department of Chemistry 7-1 Kioicho, Chiyodaku 102 Tokyo Japan

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T. Ossaka Sophia University Department of Chemistry 7-1 Kioicho, Chiyodaku 102 Tokyo Japan

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T. Nozaki Musashi Institute of Technology Atomic Energy Research Laboratory 971 Ozenji, Asaoku 215 Kawasakishi, Kanagawa Japan

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H. Kakihana Sophia University Department of Chemistry 7-1 Kioicho, Chiyodaku 102 Tokyo Japan

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Abstract  

Determination of the rare earth elements (REE's) in acidic hot spring and crater lake waters by neutron activation analysis (NAA), in which activation was performed mostly by epithermal neutrons (epithermal NAA) was investigated. Nine REE's, La, Ce, Sm, Eu, Tb, Ho, Tm, Yb and Lu, out of fourteen naturally existing REE's were determined at ppb levels with satisfactory precision. The epithermal NAA was found to be more effective in the determination of Sm, Tb, Ho and Yb than normal NAA, in which activation was performed mainly by thermal neutrons. Combined use of the epithermal and normal NAA's enabled the determination of eleven REE's, La, Ce, Sm, Eu, Gd, Tb, Dy, Ho, Tm, Yb and Lu.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)