Substoichiometric Isotope Dilution Analysis for the Determination of Iron in Biological Materials and Comparison with Substoichiometric Isotope Dilution Mass Spectrometry

H. Sakamoto; H. Imura; K. Ohashi

doi:10.1023/a:1010642908352

Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 243: Issue 3

Substoichiometric Isotope Dilution Analysis for the Determination of Iron in Biological Materials and Comparison with Substoichiometric Isotope Dilution Mass Spectrometry

Authors:

H. Sakamoto

H. Sakamoto Ibaraki University Department of Environmental Sciences, Faculty of Science Mito 310-8512 Japan

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H. Imura

H. Imura Ibaraki University Department of Environmental Sciences, Faculty of Science Mito 310-8512 Japan

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K. Ohashi

K. Ohashi Ibaraki University Department of Environmental Sciences, Faculty of Science Mito 310-8512 Japan

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Pages:: 737–740

Online Publication Date:: 02 Nov 2004

Publication Date:: 17 Mar 2000

Article Category:: Research Article

DOI:: https://doi.org/10.1023/a:1010642908352

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Abstract

Substoichiometric isotope dilution analysis for the determination of trace iron has been studied by using synergistic extraction of iron(III) with a substoichiometric amount of 4-isopropyltropolone (Hipt) in the presence of an excess of 3,5-dichlorophenol (DCP) in heptane. Optimum conditions for the substoichiometric extraction of iron(III) in g to sub-g levels were examined and the high selectivity for iron(III) toward various metal ions encountered in the analysis of biological materials was confirmed. The present method was applied to a biological reference material (NIES, CRM No.9, sargasso) without any pre-separation and was successfully evaluated. Furthermore, substoichiometric stable isotope dilution mass spectrometry using the present extraction method was also used with the above sample. Applicability and practicability was compared for both substoichiometric methods.

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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)