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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
16/04/2010 |
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Data da última atualização: |
16/04/2010 |
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Tipo da produção científica: |
Artigo de Divulgação na Mídia |
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Autoria: |
GOMES, G. V.; BENITES, V. de M.; POLIDORO, J. C.; BETTA, M.; FERREIRA FILHO, S. M.; CASTRO, D. S.; ARAUJO, E. A. C.; BENTO, J. C.; SILVA, G. P.; NAUMOV, A. |
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Afiliação: |
UNIVERSIDADE DE RIO VERDE; VINICIUS DE MELO BENITES, CNPS; JOSE CARLOS POLIDORO, CNPS; UNIVERSIDADE DE RIO VERDE; UNIVERSIDADE DE RIO VERDE; UNIVERSIDADE DE RIO VERDE; UNIVERSIDADE DE RIO VERDE; UNIVERSIDADE DE RIO VERDE; UNIVERSIDADE DE RIO VERDE - IN MEMORIAM; INTERNATIONAL INSTITUTE POTASH. |
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Título: |
Fertilidade do solo cultivado com diferentes espécies no inverno sob sistema de plantio direto. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Centro Tecnológico COMIGO Resultados 2009, Goiânia, p. 67-68, 2009. |
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Idioma: |
Português |
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Thesagro: |
Fertilidade do Solo. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 00685naa a2200229 a 4500
001 1696789
005 2010-04-16
008 2009 bl --- 0-- u #d
100 1 $aGOMES, G. V.
245 $aFertilidade do solo cultivado com diferentes espécies no inverno sob sistema de plantio direto.
260 $c2009
650 $aFertilidade do Solo
700 1 $aBENITES, V. de M.
700 1 $aPOLIDORO, J. C.
700 1 $aBETTA, M.
700 1 $aFERREIRA FILHO, S. M.
700 1 $aCASTRO, D. S.
700 1 $aARAUJO, E. A. C.
700 1 $aBENTO, J. C.
700 1 $aSILVA, G. P.
700 1 $aNAUMOV, A.
773 $tCentro Tecnológico COMIGO Resultados 2009, Goiânia, p. 67-68, 2009.
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Registro original: |
Embrapa Solos (CNPS) |
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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
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
12/07/2006 |
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Data da última atualização: |
30/08/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
-- - A |
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Autoria: |
DONATI, G. L.; NASCENTES, C. C.; NOGUEIRA, A. R. de A.; ARRUDA, M. A. Z.; NÓBREGA, J. A. |
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Título: |
Acid extraction and cloud point preconcentration as sample preparation strategies for cobalt determination in biological materials by thermospray flame furnace atomic absorption spectrometry. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Microchemical Journal, v.82, p.189-195, 2006. |
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Idioma: |
Inglês |
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Conteúdo: |
A thermospray flame furnace atomic absorption spectrometer (TS-FF-AAS) was employed for Co detennination in biological materiaIs. Cobalt presents a high atomization temperature and consequently poor sensitivity is obtained without changing its thennochemical behavior. The effect of different complexing agents on sensitivity was evaluated based on the fonnation of Co volatile compounds. A cloud point procedure was optimized for Co preconcentration for further improvement of sensitivity. Samples were treated with I moI I-I hydrochloric acid solution for quantitative extraction of Co without simultaneous extraction of Fe, since it is a strong interferent. After the extraction and preconcentration steps, a sample volume of 150 /lI was introduced into the hot Ni tube using air as carrier at a tlow-rate of 0.4 ml min- I. The best sensitivity was attained using ammonium pyrrolidinedithiocarbamate (APDC) and Triton X-114 was employed for implementation of the cloud point procedure. The detection limit obtained for Co was 2.1 /lg 1-1 and the standard deviation was 5.8% for a solution containing 100/lg I-I (n= 10). Accuracy was checked using two certified reference materiaIs (tomato leaves and bovine li ver) and results were in agreement with certified values at a 95% confidence leveI. Employing the developed procedure, Co were quantified in different biological materiaIs (plant and animal tissues). |
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Palavras-Chave: |
Acid extraction; Cloud point extraction; Flame atomic absorption spectrometry; Thermospray; Tube in flame. |
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Thesaurus NAL: |
cobalt. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02213naa a2200241 a 4500
001 1045669
005 2013-08-30
008 2006 bl uuuu u00u1 u #d
100 1 $aDONATI, G. L.
245 $aAcid extraction and cloud point preconcentration as sample preparation strategies for cobalt determination in biological materials by thermospray flame furnace atomic absorption spectrometry.
260 $c2006
520 $aA thermospray flame furnace atomic absorption spectrometer (TS-FF-AAS) was employed for Co detennination in biological materiaIs. Cobalt presents a high atomization temperature and consequently poor sensitivity is obtained without changing its thennochemical behavior. The effect of different complexing agents on sensitivity was evaluated based on the fonnation of Co volatile compounds. A cloud point procedure was optimized for Co preconcentration for further improvement of sensitivity. Samples were treated with I moI I-I hydrochloric acid solution for quantitative extraction of Co without simultaneous extraction of Fe, since it is a strong interferent. After the extraction and preconcentration steps, a sample volume of 150 /lI was introduced into the hot Ni tube using air as carrier at a tlow-rate of 0.4 ml min- I. The best sensitivity was attained using ammonium pyrrolidinedithiocarbamate (APDC) and Triton X-114 was employed for implementation of the cloud point procedure. The detection limit obtained for Co was 2.1 /lg 1-1 and the standard deviation was 5.8% for a solution containing 100/lg I-I (n= 10). Accuracy was checked using two certified reference materiaIs (tomato leaves and bovine li ver) and results were in agreement with certified values at a 95% confidence leveI. Employing the developed procedure, Co were quantified in different biological materiaIs (plant and animal tissues).
650 $acobalt
653 $aAcid extraction
653 $aCloud point extraction
653 $aFlame atomic absorption spectrometry
653 $aThermospray
653 $aTube in flame
700 1 $aNASCENTES, C. C.
700 1 $aNOGUEIRA, A. R. de A.
700 1 $aARRUDA, M. A. Z.
700 1 $aNÓBREGA, J. A.
773 $tMicrochemical Journal$gv.82, p.189-195, 2006.
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Embrapa Pecuária Sudeste (CPPSE) |
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