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resumen

Resumen
Inorganic As (iAs) species require strict monitoring in foodstuff due to their toxicity. Rice is of particular concern, with recent legislations establishing limits for these species. In this work we develop a method based on selective hydride generation atomic absorption spectrometry (HGAAS) for the determination of iAs in different types of rice (polish, parboiled, brown and paddy rice). The multivariate design of experiments used for optimization [ver mas...]
dc.contributor.authorSchlotthauer, Jonatan
dc.contributor.authorBrusa, Lucila
dc.contributor.authorLiberman, Claudia Alejandra
dc.contributor.authorDurand, Mariano
dc.contributor.authorLivore, Alberto Blas
dc.contributor.authorSigrist, Mirna
dc.date.accessioned2020-06-09T18:22:57Z
dc.date.available2020-06-09T18:22:57Z
dc.date.issued2020
dc.identifier.issn0889-1575
dc.identifier.otherhttps://doi.org/10.1016/j.jfca.2020.103506
dc.identifier.urihttp://hdl.handle.net/20.500.12123/7385
dc.identifier.urihttps://www.sciencedirect.com/science/article/abs/pii/S0889157519318733
dc.description.abstractInorganic As (iAs) species require strict monitoring in foodstuff due to their toxicity. Rice is of particular concern, with recent legislations establishing limits for these species. In this work we develop a method based on selective hydride generation atomic absorption spectrometry (HGAAS) for the determination of iAs in different types of rice (polish, parboiled, brown and paddy rice). The multivariate design of experiments used for optimization showed interactions between different factors involved in hydride generation. Matrix effects were systematically studied, where the flow rate of the carrier gas proved to be a critical parameter for the minimization of matrix interferences. Nevertheless, matrix-matching was found to be necessary for accurate quantification of paddy rice samples. Comparison of the iAs concentrations obtained by HGAAS and HPLC-ICP-MS showed non-significant differences between the methods. Analysis of 86 rice samples from the province of Entre Ríos showed relatively low concentrations of iAs (<282 μg kg−1 for paddy rice and <120 μg kg−1 for polished rice), regardless of total As concentrations (which ranged from 63 μg kg−1 to 932 μg kg−1), suggesting that the rice analyzed tends to accumulate As in its organic forms.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherElsevieres_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceJournal of Food Composition and Analysis 91 : 103506 (August 2020)es_AR
dc.subjectArrozes_AR
dc.subjectRiceeng
dc.subjectArsénicoes_AR
dc.subjectArseniceng
dc.subjectComposición de los Alimentoses_AR
dc.subjectFood Compositioneng
dc.subjectAnálisis de Alimentoses_AR
dc.subjectFood Analysiseng
dc.subjectArgentina
dc.subject.otherArsénico Inorgánicoes_AR
dc.titleDetermination of inorganic arsenic in Argentinean rice by selective HGAAS: Analytical performance for paddy, brown and polished ricees_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA Concepción del Uruguayes_AR
dc.description.filFil: Schlotthauer, Jonatan. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Investigación y Análisis de Residuos Químicos y Contaminantes; Argentinaes_AR
dc.description.filFil: Brusa, Lucila. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Investigación y Análisis de Residuos Químicos y Contaminantes; Argentinaes_AR
dc.description.filFil: Liberman, Claudia Alejandra. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Concepción del Uruguay; Argentinaes_AR
dc.description.filFil: Durand, Mariano. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Concepción del Uruguay; Argentinaes_AR
dc.description.filFil: Livore, Alberto Blas. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Concepción del Uruguay; Argentinaes_AR
dc.description.filFil: Sigrist, Mirna. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Programa de Investigación y Análisis de Residuos Químicos y Contaminantes; Argentinaes_AR
dc.subtypecientifico


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