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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
03/12/2020 |
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Data da última atualização: |
03/12/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MARCANO DE HIGUERA, J.; SILVA, A. B. S. da; OLIVEIRA, A. F. de; NOGUEIRA, A. R. de A. |
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Afiliação: |
Julymar Marcano de Higuera, UFSCAR; Ana Beatriz Santos da Silva, UFSCAR; Aline Fernandes de Oliveira, UFSCAR; ANA RITA DE ARAUJO NOGUEIRA, CPPSE. |
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Título: |
Multi-elemental determination in meat samples using multi-isotope calibration strategy by ICP-MS. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Food Chemistry, v. 303, 125395, jan. 2020. |
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DOI: |
https://doi.org/10.1016/j.foodchem.2019.125395 |
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Idioma: |
Inglês |
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Conteúdo: |
The multi-isotope calibration (MICal) is a fast and accurate calibration strategy for multi-elemental determination that uses only two solutions, (1) 50% (v v?1) sample plus 50% (v v?1) analytical blank solution, and (2) 50% (v v?1) sample plus 50% (v v?1) standard solution (containing the analytes). The calibration curves were built as a function of the intensity signals of solution 1 (y-axis) versus solution 2 (x-axis), employing the various isotopes of each monitored mass/charge. The concentration of the analytes was calculated from the slope and the concentrations of the standards added to solution 2. The validation of the method was evaluated using standard reference materials of bovine liver and bovine muscle. The recoveries varied from 87 to 113% for MICal, which were similar to the conventional standard additions calibration procedure (83 to 120%). |
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Palavras-Chave: |
Calibration strategy; ICP MS; Matrix effect; Multi elemental analysis; Multi isotope strategy. |
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Thesaurus Nal: |
Beef. |
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Categoria do assunto: |
W Química e Física |
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Marc: |
LEADER 01630naa a2200241 a 4500
001 2127535
005 2020-12-03
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.foodchem.2019.125395$2DOI
100 1 $aMARCANO DE HIGUERA, J.
245 $aMulti-elemental determination in meat samples using multi-isotope calibration strategy by ICP-MS.$h[electronic resource]
260 $c2020
520 $aThe multi-isotope calibration (MICal) is a fast and accurate calibration strategy for multi-elemental determination that uses only two solutions, (1) 50% (v v?1) sample plus 50% (v v?1) analytical blank solution, and (2) 50% (v v?1) sample plus 50% (v v?1) standard solution (containing the analytes). The calibration curves were built as a function of the intensity signals of solution 1 (y-axis) versus solution 2 (x-axis), employing the various isotopes of each monitored mass/charge. The concentration of the analytes was calculated from the slope and the concentrations of the standards added to solution 2. The validation of the method was evaluated using standard reference materials of bovine liver and bovine muscle. The recoveries varied from 87 to 113% for MICal, which were similar to the conventional standard additions calibration procedure (83 to 120%).
650 $aBeef
653 $aCalibration strategy
653 $aICP MS
653 $aMatrix effect
653 $aMulti elemental analysis
653 $aMulti isotope strategy
700 1 $aSILVA, A. B. S. da
700 1 $aOLIVEIRA, A. F. de
700 1 $aNOGUEIRA, A. R. de A.
773 $tFood Chemistry$gv. 303, 125395, jan. 2020.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
04/01/2021 |
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Data da última atualização: |
17/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SILVA, L. C. R.; CORRÊA, R. S.; WRIGHT, J. L.; BOMFIM, B.; HENDRICKS, L.; GAVIN, D. G.; MUNIZ, A. W.; MARTINS, G. C.; MOTTA, A. C. V.; BARBOSA, J. Z.; MELO, V. de F.; YOUNG, S. D.; BROADLEY, M. R.; SANTOS, R. V. |
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Afiliação: |
Lucas C. R. Silva, University of Oregon; Rodrigo Studart Corrêa; Jamie L. Wright; Barbara Bomfim; Lauren Hendricks; Daniel G. Gavin; ALEKSANDER WESTPHAL MUNIZ, CPAA; GILVAN COIMBRA MARTINS, CPAA; Antônio Carlos Vargas Motta; Julierme Zimmer Barbosa; Vander de Freitas Melo; Scott D. Young; Martin R. Broadley; Roberto Ventura Santos. |
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Título: |
A new hypothesis for the origin of Amazonian Dark Earths. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Nature Communications, v. 12, Art. 127, 2021. |
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DOI: |
https://doi.org/10.1038/s41467-020-20184-2 |
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Idioma: |
Inglês |
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Conteúdo: |
Amazonian Dark Earths (ADEs) are unusually fertile soils characterised by elevated concentrations of microscopic charcoal particles, which confer their distinctive colouration. Frequent occurrences of pre-Columbian artefacts at ADE sites led to their ubiquitous classification as Anthrosols (soils of anthropic origin). However, it remains unclear how indigenous peoples created areas of high fertility in one of the most nutrient-impoverished environments on Earth. Here, we report new data from a well-studied ADE site in the Brazilian Amazon, which compel us to reconsider its anthropic origin. The amounts of phosphorus and calcium - two of the least abundant macronutrients in the region - are orders of magnitude higher in ADE profiles than in the surrounding soil. The elevated levels of phosphorus and calcium, which are often interpreted as evidence of human activity at other sites, correlate spatially with trace elements that indicate exogenous mineral sources rather than in situ deposition. Stable isotope actios of neodymium, strontium, and radiocarbon activity of microcharcoal particles also indicate exogenous inputs from alluvial deposition of carbon and mineral elements to ADE profiles, beginning several thousands of years before the earliest evidence of soil management for plant cultivation in the region. Our data suggest that indigenous peoples harnessed natural processes of landscape formation, which led to the unique properties of ADEs, but were not responsible for their genesis. If corroborated elsewhere, this hypothesis would transform our understanding of human influence in Amazonia, opening new frontiers for the sustainable use of tropical landscapes going forward. MenosAmazonian Dark Earths (ADEs) are unusually fertile soils characterised by elevated concentrations of microscopic charcoal particles, which confer their distinctive colouration. Frequent occurrences of pre-Columbian artefacts at ADE sites led to their ubiquitous classification as Anthrosols (soils of anthropic origin). However, it remains unclear how indigenous peoples created areas of high fertility in one of the most nutrient-impoverished environments on Earth. Here, we report new data from a well-studied ADE site in the Brazilian Amazon, which compel us to reconsider its anthropic origin. The amounts of phosphorus and calcium - two of the least abundant macronutrients in the region - are orders of magnitude higher in ADE profiles than in the surrounding soil. The elevated levels of phosphorus and calcium, which are often interpreted as evidence of human activity at other sites, correlate spatially with trace elements that indicate exogenous mineral sources rather than in situ deposition. Stable isotope actios of neodymium, strontium, and radiocarbon activity of microcharcoal particles also indicate exogenous inputs from alluvial deposition of carbon and mineral elements to ADE profiles, beginning several thousands of years before the earliest evidence of soil management for plant cultivation in the region. Our data suggest that indigenous peoples harnessed natural processes of landscape formation, which led to the unique properties of ADEs, but were not responsible for the... Mostrar Tudo |
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Palavras-Chave: |
Amazonian Dark Earths; Terra Preta de Índio. |
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Thesagro: |
Solo. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/219845/1/s41467-020-20184-2.pdf
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Marc: |
LEADER 02607naa a2200325 a 4500
001 2128936
005 2021-09-17
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1038/s41467-020-20184-2$2DOI
100 1 $aSILVA, L. C. R.
245 $aA new hypothesis for the origin of Amazonian Dark Earths.$h[electronic resource]
260 $c2021
520 $aAmazonian Dark Earths (ADEs) are unusually fertile soils characterised by elevated concentrations of microscopic charcoal particles, which confer their distinctive colouration. Frequent occurrences of pre-Columbian artefacts at ADE sites led to their ubiquitous classification as Anthrosols (soils of anthropic origin). However, it remains unclear how indigenous peoples created areas of high fertility in one of the most nutrient-impoverished environments on Earth. Here, we report new data from a well-studied ADE site in the Brazilian Amazon, which compel us to reconsider its anthropic origin. The amounts of phosphorus and calcium - two of the least abundant macronutrients in the region - are orders of magnitude higher in ADE profiles than in the surrounding soil. The elevated levels of phosphorus and calcium, which are often interpreted as evidence of human activity at other sites, correlate spatially with trace elements that indicate exogenous mineral sources rather than in situ deposition. Stable isotope actios of neodymium, strontium, and radiocarbon activity of microcharcoal particles also indicate exogenous inputs from alluvial deposition of carbon and mineral elements to ADE profiles, beginning several thousands of years before the earliest evidence of soil management for plant cultivation in the region. Our data suggest that indigenous peoples harnessed natural processes of landscape formation, which led to the unique properties of ADEs, but were not responsible for their genesis. If corroborated elsewhere, this hypothesis would transform our understanding of human influence in Amazonia, opening new frontiers for the sustainable use of tropical landscapes going forward.
650 $aSolo
653 $aAmazonian Dark Earths
653 $aTerra Preta de Índio
700 1 $aCORRÊA, R. S.
700 1 $aWRIGHT, J. L.
700 1 $aBOMFIM, B.
700 1 $aHENDRICKS, L.
700 1 $aGAVIN, D. G.
700 1 $aMUNIZ, A. W.
700 1 $aMARTINS, G. C.
700 1 $aMOTTA, A. C. V.
700 1 $aBARBOSA, J. Z.
700 1 $aMELO, V. de F.
700 1 $aYOUNG, S. D.
700 1 $aBROADLEY, M. R.
700 1 $aSANTOS, R. V.
773 $tNature Communications$gv. 12, Art. 127, 2021.
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Embrapa Amazônia Ocidental (CPAA) |
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