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Registro Completo |
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
27/03/2006 |
Data da última atualização: |
29/06/2017 |
Autoria: |
FALEIRO, F. G.; SOUZA, P. I. M.; ANDRADE, S. R. M.; BELLON, G.; ABUD, S.; MOREIRA, C. T.; BARBOSA, F.; SANTOS, J. B. |
Título: |
Análise de mistura genética em campos de multiplicação de sementes de soja com base em marcadores moleculares. |
Ano de publicação: |
2005 |
Fonte/Imprenta: |
Planaltina: DF: Embrapa Cerrados, 2005. |
Descrição Física: |
1 folder. |
Idioma: |
Português |
Thesagro: |
Glycine Max; Marcador Molecular; Melhoramento Genético Vegetal; Soja. |
Thesaurus Nal: |
genetic markers; plant breeding; soybeans. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPAC-2009/26858/1/p2005_49.pdf
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Marc: |
LEADER 00791nam a2200277 a 4500 001 1566836 005 2017-06-29 008 2005 bl uuuu u0uu1 u #d 100 1 $aFALEIRO, F. G. 245 $aAnálise de mistura genética em campos de multiplicação de sementes de soja com base em marcadores moleculares. 260 $aPlanaltina: DF: Embrapa Cerrados$c2005 300 $c1 folder. 650 $agenetic markers 650 $aplant breeding 650 $asoybeans 650 $aGlycine Max 650 $aMarcador Molecular 650 $aMelhoramento Genético Vegetal 650 $aSoja 700 1 $aSOUZA, P. I. M. 700 1 $aANDRADE, S. R. M. 700 1 $aBELLON, G. 700 1 $aABUD, S. 700 1 $aMOREIRA, C. T. 700 1 $aBARBOSA, F. 700 1 $aSANTOS, J. B.
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Embrapa Cerrados (CPAC) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
13/05/2003 |
Data da última atualização: |
09/06/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
Internacional - A |
Autoria: |
ARAÚJO, G. C. L.; GONZALEZ, M. H.; FERREIRA, A. G.; NOGUEIRA, A. R. de A.; NÓBREGA, J. A. |
Afiliação: |
GEÓRGIA C. L. ARAÚJO, UFSCAR; MÁRIO H. GONZALEZ, UFSCAR; ANTÔNIO G. FERREIRA, UFSCAR; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; JOAQUIM A. NÓBREGA, UFSCAR. |
Título: |
Effect of acid concentration on closed-vessel microwave-assisted digestion of plant materials. |
Ano de publicação: |
2002 |
Fonte/Imprenta: |
Spectrochimica Acta part B, v.57, n.12, p.2121-2132, 2002. |
DOI: |
https://doi.org/10.1016/S0584-8547(02)00164-7 |
Idioma: |
Inglês |
Conteúdo: |
The efficiency of microwave-assisted acid digestion of plants using different concentrations of nitric acid (2.0, 3.0, 5.0, 7.0 and 14 mol l-1) with hydrogen peroxide (30% v/v) was evaluated by measuring the residual carbon content (RCC) using inductively coupled plasma optical emission spectrometry (ICP-OES) with axial viewing. Certified reference materials were used for evaluating the accuracy attained when 2 mol l-1 HNO3 was employed for digestion. Under all experimental conditions RCC values were always lower than 13% w/v, and even the highest concentration did not cause any interference with element recovery. It seems that the high pressure reached for closed-vessel operation improved the oxidative action of nitric acid due to consequent temperature increase, even when this reagent was not used at high concentrations. According to acid?base titration data, residual acid in the digestates varied from 1.2 to 4.0 mol l-1, depending on the acid concentration initially added. It can be concluded that for plant materials, microwave-assisted acid digestion can be carried out under mild conditions, which implies that digestates do not need extensive dilution before introduction by pneumatic nebulization to ICP-OES. An additional advantage is the lower amount of residue generated when working with less concentrated acid solutions. |
Palavras-Chave: |
Acid digestion; Closed vessel; Inductively coupled plasma optical emission spectrometry (ICP-OES; Microwave-assisted digestion; Plant materials; Residual carbon content. |
Categoria do assunto: |
W Química e Física |
Marc: |
LEADER 02212naa a2200253 a 4500 001 1046355 005 2022-06-09 008 2002 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/S0584-8547(02)00164-7$2DOI 100 1 $aARAÚJO, G. C. L. 245 $aEffect of acid concentration on closed-vessel microwave-assisted digestion of plant materials.$h[electronic resource] 260 $c2002 520 $aThe efficiency of microwave-assisted acid digestion of plants using different concentrations of nitric acid (2.0, 3.0, 5.0, 7.0 and 14 mol l-1) with hydrogen peroxide (30% v/v) was evaluated by measuring the residual carbon content (RCC) using inductively coupled plasma optical emission spectrometry (ICP-OES) with axial viewing. Certified reference materials were used for evaluating the accuracy attained when 2 mol l-1 HNO3 was employed for digestion. Under all experimental conditions RCC values were always lower than 13% w/v, and even the highest concentration did not cause any interference with element recovery. It seems that the high pressure reached for closed-vessel operation improved the oxidative action of nitric acid due to consequent temperature increase, even when this reagent was not used at high concentrations. According to acid?base titration data, residual acid in the digestates varied from 1.2 to 4.0 mol l-1, depending on the acid concentration initially added. It can be concluded that for plant materials, microwave-assisted acid digestion can be carried out under mild conditions, which implies that digestates do not need extensive dilution before introduction by pneumatic nebulization to ICP-OES. An additional advantage is the lower amount of residue generated when working with less concentrated acid solutions. 653 $aAcid digestion 653 $aClosed vessel 653 $aInductively coupled plasma optical emission spectrometry (ICP-OES 653 $aMicrowave-assisted digestion 653 $aPlant materials 653 $aResidual carbon content 700 1 $aGONZALEZ, M. H. 700 1 $aFERREIRA, A. G. 700 1 $aNOGUEIRA, A. R. de A. 700 1 $aNÓBREGA, J. A. 773 $tSpectrochimica Acta part B$gv.57, n.12, p.2121-2132, 2002.
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