Determination of selenium by GFAAS in slurries of fish feces to estimate the bioavailability of this micronutrient in feed used in pisciculture

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorSilva, Fabio A.
dc.creatorNeves, Renato C. F.
dc.creatorQuintero-Pinto, Luis G.
dc.creatorPadilha, Cilene C. F.
dc.creatorJorge, Sonia M. A.
dc.creatorBarros, Margarida Maria
dc.creatorPezzato, Luiz Edivaldo
dc.creatorPadilha, Pedro de Magalhães
dc.date2014-05-20T13:40:12Z
dc.date2016-10-25T16:55:40Z
dc.date2014-05-20T13:40:12Z
dc.date2016-10-25T16:55:40Z
dc.date2007-07-01
dc.date.accessioned2017-04-05T20:38:50Z
dc.date.available2017-04-05T20:38:50Z
dc.identifierChemosphere. Oxford: Pergamon-Elsevier B.V., v. 68, n. 8, p. 1542-1547, 2007.
dc.identifier0045-6535
dc.identifierhttp://hdl.handle.net/11449/13964
dc.identifierhttp://acervodigital.unesp.br/handle/11449/13964
dc.identifier10.1016/j.chemosphere.2007.03.003
dc.identifierWOS:000248076700019
dc.identifierhttp://dx.doi.org/10.1016/j.chemosphere.2007.03.003
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/861140
dc.descriptionThis paper presents a simple, fast and sensitive method to determine selenium in samples of feces and of fish feed by graphite furnace atomic absorption spectrometry (GFAAS) through the direct introduction of slurries of the samples into the spectrometer's graphite tube. The limits of detection (LOD) and quantification (LOQ calculated for 20 readings of the blank of the standard slurries (0.50% m/v of feces or feed devoid of selenium) were 0.31 mu g 1(-1) and 1.03 mu g 1(-1), respectively, for the standard feces slurries and 0.35 mu g 1(-1) and 1.16 mu g 1(-1), respectively, for the standard feed slurries. The proposed method was applied in studies of bioavailability of selenium in different fish feeds and the results proved consistent with that obtained from samples mineralized by acid digestion using the microwave oven. (C) 2007 Elsevier Ltd. All rights reserved.
dc.languageeng
dc.publisherElsevier B.V.
dc.relationChemosphere
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectbioavailability of selenium in fish feed
dc.subjectselenium in fish feces
dc.subjectdetermination of selenium by GFAAS
dc.subjecttoxic limit of selenium in pisciculture
dc.titleDetermination of selenium by GFAAS in slurries of fish feces to estimate the bioavailability of this micronutrient in feed used in pisciculture
dc.typeOtro


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