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Registro Completo |
Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
20/06/2022 |
Data da última atualização: |
23/01/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
DE MORAES, C. P.; BABOS, D. V.; COSTA, V. C.; NERIS, J. B.; NICOLODELLI, G.; FOSCHINI, M. M.; MAUAD, F. F.; MOUNIER, S.; MILORI, D. M. B. P. |
Afiliação: |
MILENE CORSO MITSUYUKI, CNPDIA; DEBORA MARCONDES BASTOS PEREIRA, CNPDIA. |
Título: |
Direct determination of Cu, Cr, and Ni in river sediments using double pulse laser-induced breakdown spectroscopy: Ecological risk and pollution level assessment. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Science of the Total Environment, v. 837, 155699, 2022. |
Páginas: |
9 p. |
ISSN: |
0048-9697 |
DOI: |
http://dx.doi.org/10.1016/j.scitotenv.2022.155699 |
Idioma: |
Inglês |
Conteúdo: |
Double pulse laser-induced breakdown spectroscopy (DP LIBS) has attracted much attention for analyzing trace elements due to its higher sensitivity when compared to single pulse laser-induced breakdown spectroscopy (SP LIBS).However, the development of quantitative methods in LIBS for the analysis of complex samples, such as sediments,is a great challenge due to the matrix effects that are very accentuated in this technique. In this study, different spectral treatments and calibration strategies were investigated to obtain calibration models that allow determinations with satisfactory accuracy and precision of Cr, Cu, and Ni in river sediments from different hydrographic basins. The best model developed for Cr was using MMC without spectral normalization and for Cu and Ni it was using MMC with spectral normalization, and using inverse regression, an increase in the accuracy of the determinations of all analytes was obtained. These models showed limit of quantification (LOQ) of 7.87 mg kg−1, 1.62 mg kg−1, and 2.21 mg kg−1 and root mean square error of prediction (RMSEP) of 7.54 mg kg−1, 14.53 mg kg−1, and 8.29 mg kg−1 for Cr, Cu, and Ni, respectively. Therefore, the models have adequate sensitivity and precision for the quantification of the potentially toxic elements (PTEs) evaluated, since, according to Brazilian legislation, the lower concentration of threshold effect |
Palavras-Chave: |
Double pulse laser-induced breakdown; Ecological risk; Matrix-matching calibration; Spectral normalization. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02425naa a2200301 a 4500 001 2144180 005 2024-01-23 008 2022 bl uuuu u00u1 u #d 022 $a0048-9697 024 7 $ahttp://dx.doi.org/10.1016/j.scitotenv.2022.155699$2DOI 100 1 $aDE MORAES, C. P. 245 $aDirect determination of Cu, Cr, and Ni in river sediments using double pulse laser-induced breakdown spectroscopy$bEcological risk and pollution level assessment.$h[electronic resource] 260 $c2022 300 $a9 p. 520 $aDouble pulse laser-induced breakdown spectroscopy (DP LIBS) has attracted much attention for analyzing trace elements due to its higher sensitivity when compared to single pulse laser-induced breakdown spectroscopy (SP LIBS).However, the development of quantitative methods in LIBS for the analysis of complex samples, such as sediments,is a great challenge due to the matrix effects that are very accentuated in this technique. In this study, different spectral treatments and calibration strategies were investigated to obtain calibration models that allow determinations with satisfactory accuracy and precision of Cr, Cu, and Ni in river sediments from different hydrographic basins. The best model developed for Cr was using MMC without spectral normalization and for Cu and Ni it was using MMC with spectral normalization, and using inverse regression, an increase in the accuracy of the determinations of all analytes was obtained. These models showed limit of quantification (LOQ) of 7.87 mg kg−1, 1.62 mg kg−1, and 2.21 mg kg−1 and root mean square error of prediction (RMSEP) of 7.54 mg kg−1, 14.53 mg kg−1, and 8.29 mg kg−1 for Cr, Cu, and Ni, respectively. Therefore, the models have adequate sensitivity and precision for the quantification of the potentially toxic elements (PTEs) evaluated, since, according to Brazilian legislation, the lower concentration of threshold effect 653 $aDouble pulse laser-induced breakdown 653 $aEcological risk 653 $aMatrix-matching calibration 653 $aSpectral normalization 700 1 $aBABOS, D. V. 700 1 $aCOSTA, V. C. 700 1 $aNERIS, J. B. 700 1 $aNICOLODELLI, G. 700 1 $aFOSCHINI, M. M. 700 1 $aMAUAD, F. F. 700 1 $aMOUNIER, S. 700 1 $aMILORI, D. M. B. P. 773 $tScience of the Total Environment$gv. 837, 155699, 2022.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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Biblioteca(s): |
Embrapa Meio-Norte. |
Data corrente: |
31/10/2018 |
Data da última atualização: |
31/10/2018 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
PRIMO, A. A.; MELO, M. D.; PEREIRA, G. de A. C.; SOUZA, I. M. de; SOUZA, H. A. de. |
Afiliação: |
ANACLÁUDIA ALVES PRIMO, Universidade Federal do Ceará; MARIA DIANA MELO, Universidade Estadual Vale do Acaraú; GRAZIELLA DE ANDRADE CARVALHO PEREIRA, Universidade Estadual Vale do Acaraú; IVANDERLETE MARQUES DE SOUZA, Universidade Estadual Vale do Acaraú; HENRIQUE ANTUNES DE SOUZA, CPAMN. |
Título: |
Litterfall production and nutrient cycling on caatinga woody leguminous. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
In: WORLD CONGRESS OF SOIL SCIENCE, 21., 2018, Rio de Janeiro. Soil science: beyond food and fuel: proceedings. Rio de Janeiro: SBCS, 2018. |
Idioma: |
Inglês |
Conteúdo: |
The knowledge on nutrient cycling through litter is important for the management of the species in agroforestry systems (SAFs), since the litter is an important way of making plant nutrients available to soil. The aim of this work was to evaluate the litterfall production and nutrient cycling of woody species in an agroforestry system of Caatinga. The study was developed in SAF belonging to Embrapa Goats and Sheep, located in the county of Sobral-CE, Brazil. The evaluated species were four native leguminous from Caatinga: Mimosa caesalpiniifolia (sabiá), Mimosa tenuiflora (jurema-preta), Libidibia férrea (jucá) and Poncianella piramydalis (catingueira). To collect the litter, collectors were installed under the tree canopy, using six replicates for each species evaluated. |
Palavras-Chave: |
Semiárido; Sistema conservacionista; Sistemas agroflorestais. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/185382/1/trabalho-2650.pdf
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Marc: |
LEADER 01457nam a2200193 a 4500 001 2098624 005 2018-10-31 008 2018 bl uuuu u00u1 u #d 100 1 $aPRIMO, A. A. 245 $aLitterfall production and nutrient cycling on caatinga woody leguminous.$h[electronic resource] 260 $aIn: WORLD CONGRESS OF SOIL SCIENCE, 21., 2018, Rio de Janeiro. Soil science: beyond food and fuel: proceedings. Rio de Janeiro: SBCS$c2018 520 $aThe knowledge on nutrient cycling through litter is important for the management of the species in agroforestry systems (SAFs), since the litter is an important way of making plant nutrients available to soil. The aim of this work was to evaluate the litterfall production and nutrient cycling of woody species in an agroforestry system of Caatinga. The study was developed in SAF belonging to Embrapa Goats and Sheep, located in the county of Sobral-CE, Brazil. The evaluated species were four native leguminous from Caatinga: Mimosa caesalpiniifolia (sabiá), Mimosa tenuiflora (jurema-preta), Libidibia férrea (jucá) and Poncianella piramydalis (catingueira). To collect the litter, collectors were installed under the tree canopy, using six replicates for each species evaluated. 653 $aSemiárido 653 $aSistema conservacionista 653 $aSistemas agroflorestais 700 1 $aMELO, M. D. 700 1 $aPEREIRA, G. de A. C. 700 1 $aSOUZA, I. M. de 700 1 $aSOUZA, H. A. de
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Embrapa Meio-Norte (CPAMN) |
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Registros recuperados : 82 | |
1. | | 0901264, ANAIS DA ESCOLA DE MINAS DE OURO PRETO, Escola de Minas e Metalurgia de Ouro Preto, Ouro Preto, MG Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Semiárido; Embrapa Solos. | |
2. | | 0900505, LAVOURA PARAENSE, Secretaria de Obras Publicas, Terra e Viacao, Belem-PA Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Amazônia Oriental. | |
4. | | 2600132, INDIAN FOREST RECORDS, Forest Research Institute and Colleges, New Delhi, IN Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Florestas. | |
7. | | 0900344, BOLETIM AGRICOLA DE PERNAMBUCO, Uniao dos Sindicatos Agricolas de Pernambuco, Recife-PE Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Semiárido. | |
10. | | 1850049, HOJAS DIVULGADORAS, Ministerio de Agricultura Pesca y Alimentacion, Madrid-Espanha Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Agropecuária Oeste. | |
11. | | 2850004, AGRICOLTURA COLONIALE, Istituto Agricola Coloniale Italiano. Instituto Agronomico per l'Oltremares, Firenze, Italia, IT Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Amazônia Oriental. | |
14. | | 0350176, JAHRBUCH DER CHEMIE, Herausgegeben, Frankfurt-Alemanha Ocidental Biblioteca(s): Catálogo Coletivo de Periódicos Embrapa; Embrapa Amazônia Oriental. | |
Registros recuperados : 82 | |
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