Determination of trace element concentrations in tomato samples at different stages of maturation by ICP OES and ICP-MS following microwave-assisted digestion

Detalhes bibliográficos
Autor(a) principal: Bressy, Fernanda Costa
Data de Publicação: 2013
Outros Autores: Brito, Geysa Barreto, Barbosa, Isa dos Santos, Teixeira, Leonardo Sena Gomes, Korn, Maria das Graças Andrade
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/13314
Resumo: p. 145–149
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spelling Bressy, Fernanda CostaBrito, Geysa BarretoBarbosa, Isa dos SantosTeixeira, Leonardo Sena GomesKorn, Maria das Graças AndradeBressy, Fernanda CostaBrito, Geysa BarretoBarbosa, Isa dos SantosTeixeira, Leonardo Sena GomesKorn, Maria das Graças Andrade2013-10-29T20:32:46Z20130026-265Xhttp://repositorio.ufba.br/ri/handle/ri/13314v. 109p. 145–149The concentrations of 15 elements (Al, Ba, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Se, Sn, Sr, V and Zn) were determined in three tomato species (Khaki, Cherry and Italy) at different stages of maturation by ICP OES and ICP-MS following microwave-assisted acid digestion. The digestion efficiency was evaluated on the basis of the determination of residual carbon content and trace element recoveries. Diluted nitric acid solutions were used for the efficient digestion of 300 mg of tomato samples, with a considerable reduction in the residual acidity when compared with a procedure that employed a concentrated nitric acid solution. The good agreement between the measured and certified concentrations of a National Institute of Standards and Technology (NIST) Certified Reference Material 1573a (Tomato Leaves) indicated that the developed analytical method was well suited to determine the trace elements contents in similar matrices. The analytical parameters, such as the limits of quantification, the accuracy and the precision of the overall procedure, were assessed statistically. Moreover, the measured trace element concentrations were used to distinguish between conventional and organic cultivation. According to the data, the species of tomato, the form of cultivation and the stage of maturation of the fruit influenced the concentrations of the trace elements that are found in the tomato samples. Tomatoes in the final stage of maturation showed higher concentrations of most of the elements that were measured in the three species studied. Regarding the type of cultivation, organic tomatoes contained higher levels of micronutrients and less contaminants when compared with conventionally grown tomatoes. Highlights ► The concentrations of 15 elements were determined in three species of tomatoes by ICP OES and ICP-MS. ► The type of sample, form of cultivation and maturation influenced the concentrations of trace elements in tomato samples. ► Tomatoes in the final stages of maturation showed higher concentrations ​​for most elements that were measured. ► Organic tomatoes had higher levels of micronutrients and lower levels of contaminants.Submitted by Santiago Fabio (fabio.ssantiago@hotmail.com) on 2013-10-29T20:32:46Z No. of bitstreams: 1 666666666.pdf: 169753 bytes, checksum: 79cddaaa7ffa496a0ca7ce302ecba351 (MD5)Made available in DSpace on 2013-10-29T20:32:46Z (GMT). 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dc.title.pt_BR.fl_str_mv Determination of trace element concentrations in tomato samples at different stages of maturation by ICP OES and ICP-MS following microwave-assisted digestion
dc.title.alternative.pt_BR.fl_str_mv Microchemical Journal
title Determination of trace element concentrations in tomato samples at different stages of maturation by ICP OES and ICP-MS following microwave-assisted digestion
spellingShingle Determination of trace element concentrations in tomato samples at different stages of maturation by ICP OES and ICP-MS following microwave-assisted digestion
Bressy, Fernanda Costa
ICP OES
ICP-MS
Microwave-assisted acid digestion
Multi-element determination
Tomato
Food sample
title_short Determination of trace element concentrations in tomato samples at different stages of maturation by ICP OES and ICP-MS following microwave-assisted digestion
title_full Determination of trace element concentrations in tomato samples at different stages of maturation by ICP OES and ICP-MS following microwave-assisted digestion
title_fullStr Determination of trace element concentrations in tomato samples at different stages of maturation by ICP OES and ICP-MS following microwave-assisted digestion
title_full_unstemmed Determination of trace element concentrations in tomato samples at different stages of maturation by ICP OES and ICP-MS following microwave-assisted digestion
title_sort Determination of trace element concentrations in tomato samples at different stages of maturation by ICP OES and ICP-MS following microwave-assisted digestion
author Bressy, Fernanda Costa
author_facet Bressy, Fernanda Costa
Brito, Geysa Barreto
Barbosa, Isa dos Santos
Teixeira, Leonardo Sena Gomes
Korn, Maria das Graças Andrade
author_role author
author2 Brito, Geysa Barreto
Barbosa, Isa dos Santos
Teixeira, Leonardo Sena Gomes
Korn, Maria das Graças Andrade
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Bressy, Fernanda Costa
Brito, Geysa Barreto
Barbosa, Isa dos Santos
Teixeira, Leonardo Sena Gomes
Korn, Maria das Graças Andrade
Bressy, Fernanda Costa
Brito, Geysa Barreto
Barbosa, Isa dos Santos
Teixeira, Leonardo Sena Gomes
Korn, Maria das Graças Andrade
dc.subject.por.fl_str_mv ICP OES
ICP-MS
Microwave-assisted acid digestion
Multi-element determination
Tomato
Food sample
topic ICP OES
ICP-MS
Microwave-assisted acid digestion
Multi-element determination
Tomato
Food sample
description p. 145–149
publishDate 2013
dc.date.accessioned.fl_str_mv 2013-10-29T20:32:46Z
dc.date.issued.fl_str_mv 2013
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.ufba.br/ri/handle/ri/13314
dc.identifier.issn.none.fl_str_mv 0026-265X
dc.identifier.number.pt_BR.fl_str_mv v. 109
identifier_str_mv 0026-265X
v. 109
url http://repositorio.ufba.br/ri/handle/ri/13314
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Microchemical Journal
publisher.none.fl_str_mv Microchemical Journal
dc.source.pt_BR.fl_str_mv http://www.sciencedirect.com/science/article/pii/S0026265X12000562
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
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instname_str Universidade Federal da Bahia (UFBA)
instacron_str UFBA
institution UFBA
reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
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