Radiochemical neutron activation analysis of individual rare earth elements in monazites from different geological environments

P. Parthasarathy; H. Desai; S. Kayasth

doi:10.1007/bf02167388

Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 105: Issue 5

Radiochemical neutron activation analysis of individual rare earth elements in monazites from different geological environments

Authors:

P. Parthasarathy

P. Parthasarathy Bhabha Atomic Research Centre Analytical Chemistry Division Trombay 400 085 Bombay India

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H. Desai

H. Desai Bhabha Atomic Research Centre Analytical Chemistry Division Trombay 400 085 Bombay India

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, and

S. Kayasth

S. Kayasth Bhabha Atomic Research Centre Analytical Chemistry Division Trombay 400 085 Bombay India

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Pages:: 277–289

Online Publication Date:: 27 Sep 2005

Publication Date:: 17 Jul 1986

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02167388

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Abstract

Radiochemical neutron activation analysis /RNAA/ has been applied for the determination of individual rare earth elements /REE/, except Tm, in 8 Indian monazites and one each from Malaysia and Thailand. Because of the very low amounts of heavy rare earths /HREE/ compared to light rare earths /LREE/ in monazite, HREE from Ho onwards have been determined only after the separation of the heavy and light rare earth fractions in the irradiated monazite samples. The results indicate significant variations in REE contents from Eu to Lu among different monazite samples. The chondritic normalized REE patterns of all the samples show a prominent negative Eu anomaly with different slopes at the heavy rare earth end. All the individual REE, except Tm, have been reported for the first time in various Indian monazites.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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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)