Microwave as an alternative to sample preparation in the foliar tissue silicon analysis of wood species for colorimetric determination

Detalhes bibliográficos
Autor(a) principal: Pereira, Claudia Mara
Data de Publicação: 2010
Outros Autores: Hansel, Fabrício Augusto, Radomski, Maria Izabel, Verdeckin, Maisa Gottardo
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Florestal Brasileira (Online)
Texto Completo: https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/67
Resumo: The aim of this work was to test the viability of microwave digestion for the colorimetric determination of silicon in foliar tissues of wood species. In the test, the correlation coefficient was 0.998 in the concentration range of 0.4 to 7 mg.g-1. Spiked cellulose samples were used and the recovery was high than 90 % in two tested concentrations (2 e 4 mg.g-1). The obtained coefficients of variation were equal to 4.2 % and 7.0 % for espinheira santa (Maytenus ilicifolia) and eucalipto (Eucalyptus benthamii), respectively. The microwave-induced digestion was compared to autoclave-induced digestion by interlaboratorial test, with relative errors smaller than 17 % in all tested samples (n=10). Based on these results, the microwave digestion of foliar tissues samples of wood species showed to be an alternative to determination of silicon by colorimetric method performed at a wavelength of 410 nm.
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spelling Microwave as an alternative to sample preparation in the foliar tissue silicon analysis of wood species for colorimetric determinationMicroondas como alternativa na abertura de amostras para dosagem de silício em tecido foliar de espécies florestais por determinação colorimétricaFolhasdigestãocolorimetriaEucalyptus benthamiiMaytenus ilicifoliasilícioLeavesdigestioncolorimetryEucalyptus benthamiiMaytenus ilicifoliasilicon.The aim of this work was to test the viability of microwave digestion for the colorimetric determination of silicon in foliar tissues of wood species. In the test, the correlation coefficient was 0.998 in the concentration range of 0.4 to 7 mg.g-1. Spiked cellulose samples were used and the recovery was high than 90 % in two tested concentrations (2 e 4 mg.g-1). The obtained coefficients of variation were equal to 4.2 % and 7.0 % for espinheira santa (Maytenus ilicifolia) and eucalipto (Eucalyptus benthamii), respectively. The microwave-induced digestion was compared to autoclave-induced digestion by interlaboratorial test, with relative errors smaller than 17 % in all tested samples (n=10). Based on these results, the microwave digestion of foliar tissues samples of wood species showed to be an alternative to determination of silicon by colorimetric method performed at a wavelength of 410 nm.Este trabalho teve como objetivo avaliar a viabilidade do uso de digestão em microondas na determinaçãocolorimétrica de silício em amostras de tecido vegetal de espécies florestais. Nos testes realizados, o coeficientede correlação (r) foi de 0,998 para a faixa de concentração de 0,4 até 7 mg.g-1. As recuperações realizadas, a partirde testes de fortificação em celulose, foram superiores a 90 % para duas concentrações testadas (2 e 4 mg.g-1), socoeficiente de variação foi igual a 4,2 % e 7,0 % para a espinheira santa (Maytenus ilicifolia) e eucalipto(Eucalyptus benthamii), respectivamente. A digestão por microondas foi comparada com a digestão por autoclaveem teste interlaboratorial, sendo que os erros relativos apresentaram-se menores que 17 % para todas as amostrastestadas. Considerando os resultados obtidos, a abertura das amostras de tecido foliar de espécies florestais emmicroondas apresenta-se como uma alternativa, dentro dos limites testados, na dosagem de silício pelo métodocolorimétrico, com leitura realizada no comprimento de onda de 410 nm.Embrapa Florestas2010-03-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/67Pesquisa Florestal Brasileira; n. 56 (2008): jan./jun.; 105Pesquisa Florestal Brasileira; No. 56 (2008): jan./jun.; 1051983-26051809-3647reponame:Pesquisa Florestal Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/67/64Pereira, Claudia MaraHansel, Fabrício AugustoRadomski, Maria IzabelVerdeckin, Maisa Gottardoinfo:eu-repo/semantics/openAccess2018-03-20T18:52:41Zoai:pfb.cnpf.embrapa.br/pfb:article/67Revistahttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/PUBhttps://pfb.cnpf.embrapa.br/pfb/index.php/pfb/oaipfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br1983-26051809-3647opendoar:2018-03-20T18:52:41Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Microwave as an alternative to sample preparation in the foliar tissue silicon analysis of wood species for colorimetric determination
Microondas como alternativa na abertura de amostras para dosagem de silício em tecido foliar de espécies florestais por determinação colorimétrica
title Microwave as an alternative to sample preparation in the foliar tissue silicon analysis of wood species for colorimetric determination
spellingShingle Microwave as an alternative to sample preparation in the foliar tissue silicon analysis of wood species for colorimetric determination
Pereira, Claudia Mara
Folhas
digestão
colorimetria
Eucalyptus benthamii
Maytenus ilicifolia
silício
Leaves
digestion
colorimetry
Eucalyptus benthamii
Maytenus ilicifolia
silicon.
title_short Microwave as an alternative to sample preparation in the foliar tissue silicon analysis of wood species for colorimetric determination
title_full Microwave as an alternative to sample preparation in the foliar tissue silicon analysis of wood species for colorimetric determination
title_fullStr Microwave as an alternative to sample preparation in the foliar tissue silicon analysis of wood species for colorimetric determination
title_full_unstemmed Microwave as an alternative to sample preparation in the foliar tissue silicon analysis of wood species for colorimetric determination
title_sort Microwave as an alternative to sample preparation in the foliar tissue silicon analysis of wood species for colorimetric determination
author Pereira, Claudia Mara
author_facet Pereira, Claudia Mara
Hansel, Fabrício Augusto
Radomski, Maria Izabel
Verdeckin, Maisa Gottardo
author_role author
author2 Hansel, Fabrício Augusto
Radomski, Maria Izabel
Verdeckin, Maisa Gottardo
author2_role author
author
author
dc.contributor.author.fl_str_mv Pereira, Claudia Mara
Hansel, Fabrício Augusto
Radomski, Maria Izabel
Verdeckin, Maisa Gottardo
dc.subject.por.fl_str_mv Folhas
digestão
colorimetria
Eucalyptus benthamii
Maytenus ilicifolia
silício
Leaves
digestion
colorimetry
Eucalyptus benthamii
Maytenus ilicifolia
silicon.
topic Folhas
digestão
colorimetria
Eucalyptus benthamii
Maytenus ilicifolia
silício
Leaves
digestion
colorimetry
Eucalyptus benthamii
Maytenus ilicifolia
silicon.
description The aim of this work was to test the viability of microwave digestion for the colorimetric determination of silicon in foliar tissues of wood species. In the test, the correlation coefficient was 0.998 in the concentration range of 0.4 to 7 mg.g-1. Spiked cellulose samples were used and the recovery was high than 90 % in two tested concentrations (2 e 4 mg.g-1). The obtained coefficients of variation were equal to 4.2 % and 7.0 % for espinheira santa (Maytenus ilicifolia) and eucalipto (Eucalyptus benthamii), respectively. The microwave-induced digestion was compared to autoclave-induced digestion by interlaboratorial test, with relative errors smaller than 17 % in all tested samples (n=10). Based on these results, the microwave digestion of foliar tissues samples of wood species showed to be an alternative to determination of silicon by colorimetric method performed at a wavelength of 410 nm.
publishDate 2010
dc.date.none.fl_str_mv 2010-03-22
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/67
url https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/67
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/67/64
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Embrapa Florestas
publisher.none.fl_str_mv Embrapa Florestas
dc.source.none.fl_str_mv Pesquisa Florestal Brasileira; n. 56 (2008): jan./jun.; 105
Pesquisa Florestal Brasileira; No. 56 (2008): jan./jun.; 105
1983-2605
1809-3647
reponame:Pesquisa Florestal Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Florestal Brasileira (Online)
collection Pesquisa Florestal Brasileira (Online)
repository.name.fl_str_mv Pesquisa Florestal Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pfb@embrapa.br || revista.pfb@gmail.com || patricia.mattos@embrapa.br
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