Determination of selenium daily intakes in two small groups of the Portuguese population by replicate sample neutron activation analysis |
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Authors: | M G Ventura M C Freitas A M G Pacheco |
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Institution: | (1) Reactor-ITN, Technological and Nuclear Institute, E.N. 10, 2686-953 Sacavém, Portugal;(2) REQUIMTE-FCT, New University of Lisbon, Monte da Caparica, 2829-516 Caparica, Portugal;(3) CERENA-IST, Technical University of Lisbon, Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal |
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Abstract: | Selenium daily intake was determined for two small groups of the Portuguese population, based on the analysis of duplicate
diet portions. The total amount of food ingested during a day was collected for 18 workers of the Technological and Nuclear
Institute (ITN-Sacavém) and for 6 females of Reguengos de Monsaraz, a small town in the south-eastern hinterland. The average
selenium daily intake was 43 ± 20 and 32 ± 13 μg per person, respectively, both lower than the Recommended Dietary Allowance
(RDA) of 55 μg day−1. Selenium in diet samples was determined by replicate sample neutron activation analysis (RSINAA). The method was considered
accurate for the selenium determination. |
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Keywords: | Selenium Daily intake Portugal INAA |
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