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

M. G. Ventura, M. C. Freitas, A. M.G. Pacheco

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

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.
Original languageEnglish
Pages (from-to)197-200
Number of pages4
JournalJournal Of Radioanalytical And Nuclear Chemistry
Volume281
Issue number2
DOIs
Publication statusPublished - Aug 2009

Keywords

  • Food
  • Portugal
  • RSINAA
  • Selenium

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