Determination of selenium in food matrices by replicate sample neutron activation analysis

M. Ventura; M. Freitas; A. Pacheco

doi:10.1007/s10967-009-0117-4

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 281: Issue 2

Determination of selenium in food matrices by replicate sample neutron activation analysis

Authors:

M. Ventura

M. Ventura

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M. Freitas

M. Freitas Technological and Nuclear Institute Reactor-ITN E.N. 10 2686-953 Sacavém Portugal

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, and

A. Pacheco

A. Pacheco Technical University of Lisbon CERENA-IST Av. Rovisco Pais 1 1049-001 Lisboa Portugal

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Pages:: 197–200

Online Publication Date:: 18 Jun 2009

Publication Date:: 01 Aug 2009

Article Category:: Research Article

DOI:: https://doi.org/10.1007/s10967-009-0117-4

Keywords:: Selenium; Food; Portugal; RSINAA

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Abstract

The replicate sample instrumental neutron activation method was optimized and used for the determination of selenium in foodstuffs. The method was reliable, yielding accurate results. Lower detections limits were obtained after each successive irradiation. Different irradiation conditions were used depending on the type of sample. For samples with higher selenium contents (meat, fish, eggs), the measured selenium in the first replicate is in all cases larger than the detection limit, but a better accuracy was obtained with a larger number of replicates (2–3 replicates). For samples with extremely low selenium contents (vegetable samples), at least seven replicates were necessary to obtain a concentration value two times larger than the detection limit.

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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)