Determination of thorium isotopes in seawater by using preconcentration of thorium-XO complexes on XAD-2 resin

K. Hirose

doi:10.1007/bf02164865

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 127: Issue 3

Determination of thorium isotopes in seawater by using preconcentration of thorium-XO complexes on XAD-2 resin

Author:

K. Hirose

K. Hirose Meteorological Research Institute Geochemical Laboratory Nagamine 1-1, Yatabe 305 Tsukuba, Ibaraki Japan

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Pages:: 199–207

Online Publication Date:: 27 Sep 2005

Publication Date:: 17 Jun 1988

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02164865

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Abstract

Thorium isotopes in seawater are determined by means of adsorption of the Xylenol Orange /XO: H₆A/ complex onto XAD-2 resin at pH=3 and the XO concentration of 10^–5M, and subsequent purification using an anion-exchange resin, and finally with alpha-spectrometry. The dissolved²³²Th concentration in the western North Pacific surface water is found to range from 0.8 to 1.2 Bq ^–1. The adsorbed species of the Th-XO complex under the experimental conditions has a composition of Th/H₂A/₂ according to the mass balance analysis.

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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)