Determination of total strontium in uruguayan rice by inductively coupled plasma optical emission spectrometry (ICP-OES)

RIVERO HUGUET, MARIO E. - DARRÉ, ELENA

Resumen:

Strontium (Sr) is found naturally as a non-radioactive element and has 16 known isotopes. Naturally occurring Sr is found as four stable isotopes: Sr-84, -86, -87, and -88. Twelve other isotopes are radioactive. Sr-90 is the most important radioactive isotope in the environment, discovered mostly after the nuclear experiments conducted in the 1950s and 1960s. In the present work, 86 rice samples (Oryza sativa L.) and 7 rice husk samples were digested by dry ashing for the purpose of determining the total Sr levels by ICP-OES. The mean concentrations found were: 0.281 µg g–1 for milled, 0.287 µg g–1 for parboiled milled, 0.564 µg g–1 for brown, 0.73 µg g–1 for parboiled brown, and 1.16 µg g–1 for paddy rice, and 3.44 µg g–1 for the rice husks. Validation of the method was conducted with a certified reference material, NIST CRM 8418 Wheat Gluten, and the recovery obtained ranged from 89–98%. As the outer layers (aleurone, pericarp) of the grain are removed, the Sr concentration decreases. It can then be assumed that most of the Sr is stored in these layers. Although no extensive data exist for Sr levels in rice, the values obtained are in good agreement with the results reported for Sr in brown rice from Japan (0.25–0.72 µg g–1) and with non-contaminated foodstuffs from other parts of the world. Thus, the Uruguayan rice has Sr levels that match non-contaminated samples and its consumption presents no health threat.


Detalles Bibliográficos
2006
ARROZ
URUGUAY
Inglés
Laboratorio Tecnológico del Uruguay
Catálogo digital del LATU
https://catalogo.latu.org.uy/opac_css/index.php?lvl=notice_display&id=28972
Acceso abierto
CC BY-NC-ND
_version_ 1807353827961077760
author RIVERO HUGUET, MARIO E.
author2 DARRÉ, ELENA
author2_role author
author_facet RIVERO HUGUET, MARIO E.
DARRÉ, ELENA
author_role author
collection Catálogo digital del LATU
dc.coverage.none.fl_str_mv En: Atomic Spectroscopy Vol.27 No.3, 2006
dc.creator.none.fl_str_mv RIVERO HUGUET, MARIO E.
DARRÉ, ELENA
dc.date.none.fl_str_mv 2006-01-01
dc.description.abstract.none.fl_txt_mv Strontium (Sr) is found naturally as a non-radioactive element and has 16 known isotopes. Naturally occurring Sr is found as four stable isotopes: Sr-84, -86, -87, and -88. Twelve other isotopes are radioactive. Sr-90 is the most important radioactive isotope in the environment, discovered mostly after the nuclear experiments conducted in the 1950s and 1960s. In the present work, 86 rice samples (Oryza sativa L.) and 7 rice husk samples were digested by dry ashing for the purpose of determining the total Sr levels by ICP-OES. The mean concentrations found were: 0.281 µg g–1 for milled, 0.287 µg g–1 for parboiled milled, 0.564 µg g–1 for brown, 0.73 µg g–1 for parboiled brown, and 1.16 µg g–1 for paddy rice, and 3.44 µg g–1 for the rice husks. Validation of the method was conducted with a certified reference material, NIST CRM 8418 Wheat Gluten, and the recovery obtained ranged from 89–98%. As the outer layers (aleurone, pericarp) of the grain are removed, the Sr concentration decreases. It can then be assumed that most of the Sr is stored in these layers. Although no extensive data exist for Sr levels in rice, the values obtained are in good agreement with the results reported for Sr in brown rice from Japan (0.25–0.72 µg g–1) and with non-contaminated foodstuffs from other parts of the world. Thus, the Uruguayan rice has Sr levels that match non-contaminated samples and its consumption presents no health threat.
dc.format.none.fl_str_mv Pdf
dc.identifier.none.fl_str_mv https://catalogo.latu.org.uy/opac_css/index.php?lvl=notice_display&id=28972
28972
urn:ISBN:28046
dc.language.iso.none.fl_str_mv eng
dc.rights.license.none.fl_str_mv CC BY-NC-ND
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
CC BY-NC-ND
dc.source.none.fl_str_mv reponame:Catálogo digital del LATU
instname:Laboratorio Tecnológico del Uruguay
instacron:Laboratorio Tecnológico del Uruguay
dc.subject.none.fl_str_mv ARROZ
URUGUAY
dc.title.none.fl_str_mv Determination of total strontium in uruguayan rice by inductively coupled plasma optical emission spectrometry (ICP-OES)
dc.type.none.fl_str_mv info:eu-repo/semantics/article
Publicado
dc.type.version.none.fl_str_mv info:eu-repo/semantics/publishedVersion
description Strontium (Sr) is found naturally as a non-radioactive element and has 16 known isotopes. Naturally occurring Sr is found as four stable isotopes: Sr-84, -86, -87, and -88. Twelve other isotopes are radioactive. Sr-90 is the most important radioactive isotope in the environment, discovered mostly after the nuclear experiments conducted in the 1950s and 1960s. In the present work, 86 rice samples (Oryza sativa L.) and 7 rice husk samples were digested by dry ashing for the purpose of determining the total Sr levels by ICP-OES. The mean concentrations found were: 0.281 µg g–1 for milled, 0.287 µg g–1 for parboiled milled, 0.564 µg g–1 for brown, 0.73 µg g–1 for parboiled brown, and 1.16 µg g–1 for paddy rice, and 3.44 µg g–1 for the rice husks. Validation of the method was conducted with a certified reference material, NIST CRM 8418 Wheat Gluten, and the recovery obtained ranged from 89–98%. As the outer layers (aleurone, pericarp) of the grain are removed, the Sr concentration decreases. It can then be assumed that most of the Sr is stored in these layers. Although no extensive data exist for Sr levels in rice, the values obtained are in good agreement with the results reported for Sr in brown rice from Japan (0.25–0.72 µg g–1) and with non-contaminated foodstuffs from other parts of the world. Thus, the Uruguayan rice has Sr levels that match non-contaminated samples and its consumption presents no health threat.
eu_rights_str_mv openAccess
format article
id LATU_08cccd36b28e5d4494059290564106c7
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repository.name.fl_str_mv Catálogo digital del LATU - Laboratorio Tecnológico del Uruguay
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spelling Determination of total strontium in uruguayan rice by inductively coupled plasma optical emission spectrometry (ICP-OES)RIVERO HUGUET, MARIO E.DARRÉ, ELENAARROZURUGUAYStrontium (Sr) is found naturally as a non-radioactive element and has 16 known isotopes. Naturally occurring Sr is found as four stable isotopes: Sr-84, -86, -87, and -88. Twelve other isotopes are radioactive. Sr-90 is the most important radioactive isotope in the environment, discovered mostly after the nuclear experiments conducted in the 1950s and 1960s. In the present work, 86 rice samples (Oryza sativa L.) and 7 rice husk samples were digested by dry ashing for the purpose of determining the total Sr levels by ICP-OES. The mean concentrations found were: 0.281 µg g–1 for milled, 0.287 µg g–1 for parboiled milled, 0.564 µg g–1 for brown, 0.73 µg g–1 for parboiled brown, and 1.16 µg g–1 for paddy rice, and 3.44 µg g–1 for the rice husks. Validation of the method was conducted with a certified reference material, NIST CRM 8418 Wheat Gluten, and the recovery obtained ranged from 89–98%. As the outer layers (aleurone, pericarp) of the grain are removed, the Sr concentration decreases. It can then be assumed that most of the Sr is stored in these layers. Although no extensive data exist for Sr levels in rice, the values obtained are in good agreement with the results reported for Sr in brown rice from Japan (0.25–0.72 µg g–1) and with non-contaminated foodstuffs from other parts of the world. Thus, the Uruguayan rice has Sr levels that match non-contaminated samples and its consumption presents no health threat.2006-01-01info:eu-repo/semantics/articlePublicadoinfo:eu-repo/semantics/publishedVersionPdfhttps://catalogo.latu.org.uy/opac_css/index.php?lvl=notice_display&id=2897228972urn:ISBN:28046engEn: Atomic Spectroscopy Vol.27 No.3, 2006info:eu-repo/semantics/openAccessCC BY-NC-NDCC BY-NC-NDreponame:Catálogo digital del LATUinstname:Laboratorio Tecnológico del Uruguayinstacron:Laboratorio Tecnológico del Uruguay2020-06-23T16:12:52Zoai:PMBOAI:28972Gobiernohttps://latu.org.uy/https://catalogo.latu.org.uy/ws/PMBOAIlfiori@latu.org.uyUruguayopendoar:2024-08-01T14:48:39.973527Catálogo digital del LATU - Laboratorio Tecnológico del Uruguayfalse
spellingShingle Determination of total strontium in uruguayan rice by inductively coupled plasma optical emission spectrometry (ICP-OES)
RIVERO HUGUET, MARIO E.
ARROZ
URUGUAY
status_str publishedVersion
title Determination of total strontium in uruguayan rice by inductively coupled plasma optical emission spectrometry (ICP-OES)
title_full Determination of total strontium in uruguayan rice by inductively coupled plasma optical emission spectrometry (ICP-OES)
title_fullStr Determination of total strontium in uruguayan rice by inductively coupled plasma optical emission spectrometry (ICP-OES)
title_full_unstemmed Determination of total strontium in uruguayan rice by inductively coupled plasma optical emission spectrometry (ICP-OES)
title_short Determination of total strontium in uruguayan rice by inductively coupled plasma optical emission spectrometry (ICP-OES)
title_sort Determination of total strontium in uruguayan rice by inductively coupled plasma optical emission spectrometry (ICP-OES)
topic ARROZ
URUGUAY
url https://catalogo.latu.org.uy/opac_css/index.php?lvl=notice_display&id=28972