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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
13/06/2001 |
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Data da última atualização: |
04/07/2019 |
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Autoria: |
FREIRE, G. S.; COIMBRA, H. M.; FERNANDES, T. S. D.; SÁ, T. D. de A. |
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Afiliação: |
Bolsista CNPq/PIBIC/FCAP; Bolsista de ATP/CNPq/SHIFT; FCAP; TATIANA DEANE DE ABREU SA, CPATU. |
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Título: |
Características espectrais da radiação solar sob pastagens degradadas em recuperação pelo plantio de Acacia mangium. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA FCAP, 9.; SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA ORIENTAL, 3., 1999, Belém. Resumos. Belém: FCAP: Embrapa Amazônia Oriental, 1999. |
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Páginas: |
p. 78-80. |
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Idioma: |
Português |
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Palavras-Chave: |
Pastagem degradada; Pasture improvement; Reclamation; Recuperação de pastagem. |
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Thesagro: |
Radiação Solar. |
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Thesaurus Nal: |
solar radiation. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/199182/1/Caracterisitcas-espectrais.pdf
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Marc: |
LEADER 00858naa a2200229 a 4500
001 1395118
005 2019-07-04
008 1999 bl uuuu u00u1 u #d
100 1 $aFREIRE, G. S.
245 $aCaracterísticas espectrais da radiação solar sob pastagens degradadas em recuperação pelo plantio de Acacia mangium.
260 $c1999
300 $ap. 78-80.
650 $asolar radiation
650 $aRadiação Solar
653 $aPastagem degradada
653 $aPasture improvement
653 $aReclamation
653 $aRecuperação de pastagem
700 1 $aCOIMBRA, H. M.
700 1 $aFERNANDES, T. S. D.
700 1 $aSÁ, T. D. de A.
773 $tIn: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA FCAP, 9.; SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA ORIENTAL, 3., 1999, Belém. Resumos. Belém: FCAP: Embrapa Amazônia Oriental, 1999.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
20/04/2000 |
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Data da última atualização: |
18/04/2022 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
NOGUEIRA, A. R. de A.; ARAÚJO, G. C. L.; NÓBREGA, J. A. |
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Afiliação: |
ANA RITA DE ARAUJO NOGUEIRA, CPPSE; GEÓRGIA C. L. ARAÚJO, UFSCAR; JOAQUIM A. NÓBREGA, UFSCAR. |
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Título: |
Acid vapor sample decomposition in open vessel microwave. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
In: PITTCON, 21., 2000, New Orleans. Abstracts... New Orleans: PITTCON, 2000. |
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Idioma: |
Português |
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Conteúdo: |
Micrawave decomposition has been increasingly used hr a large number of samples. A method using an open vessel microwave was used for biological sample preparation with nitric acid vapors under atmospheric pressure. A lab made Teflon@ support suited with four cups, which received the samples, was inserted in the microwave vessel. These cups were used to weight 30 mg of certi5ed re5wence materials such as spinach and apple leaves, which received 150 pL of d.i. water to improve the micrawave e%ciency. This mixture was exposed to acid vapor stemmed from 15 mL of concentrated nitrie acid plsced in the bottom of the vessel hr decompoeition. The maximum microwave temperature, 115'C, was reached in 4 min. This condition was rnaintained hr 20 min to sllow complete decomposition of the sample. The deeomposed sample, in the cup, was diluted to 1.0 mL of d.i. water, shaken and centrifuged. The cups were than placed directed into an autosampler for Co and Fe analysis in an atomic absorption graphite fumace spectrometer. |
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Palavras-Chave: |
Acid vapor; Decompostion; Microvawe; Open vessel. |
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Thesaurus NAL: |
cobalt. |
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Categoria do assunto: |
W Química e Física |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/118360/1/digitalizar0004.pdf
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Marc: |
LEADER 01589nam a2200193 a 4500
001 1044768
005 2022-04-18
008 2000 bl uuuu u00u1 u #d
100 1 $aNOGUEIRA, A. R. de A.
245 $aAcid vapor sample decomposition in open vessel microwave.$h[electronic resource]
260 $aIn: PITTCON, 21., 2000, New Orleans. Abstracts... New Orleans: PITTCON$c2000
520 $aMicrawave decomposition has been increasingly used hr a large number of samples. A method using an open vessel microwave was used for biological sample preparation with nitric acid vapors under atmospheric pressure. A lab made Teflon@ support suited with four cups, which received the samples, was inserted in the microwave vessel. These cups were used to weight 30 mg of certi5ed re5wence materials such as spinach and apple leaves, which received 150 pL of d.i. water to improve the micrawave e%ciency. This mixture was exposed to acid vapor stemmed from 15 mL of concentrated nitrie acid plsced in the bottom of the vessel hr decompoeition. The maximum microwave temperature, 115'C, was reached in 4 min. This condition was rnaintained hr 20 min to sllow complete decomposition of the sample. The deeomposed sample, in the cup, was diluted to 1.0 mL of d.i. water, shaken and centrifuged. The cups were than placed directed into an autosampler for Co and Fe analysis in an atomic absorption graphite fumace spectrometer.
650 $acobalt
653 $aAcid vapor
653 $aDecompostion
653 $aMicrovawe
653 $aOpen vessel
700 1 $aARAÚJO, G. C. L.
700 1 $aNÓBREGA, J. A.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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