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Registro Completo |
Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
24/08/1997 |
Data da última atualização: |
24/08/1997 |
Autoria: |
BORGES, J. D.; MACEDO, J. H. P. |
Título: |
Ocorrencia de Dirphia araucariae em Araucaria angustifolia no municipio de Congonhinhas, PR. |
Ano de publicação: |
1986 |
Fonte/Imprenta: |
Pesquisa Agropecuaria Brasileira, Brasilia, v.21, n.2, p.101-104, fev. 1986. |
Idioma: |
Português |
Conteúdo: |
Neste trabalho sao apresentadas informacoes sobre importante praga da essencia florestal Araucaria angustifolia (Bertoloni) O. Kuntze; registra-se um intenso ataque de Dirphia araucariae Jones, 1908 (Lepidoptera, Attacidade) em talhoes do pinheiro brasileiro, ocorrido no ano de 1979, no municipio de Congonhinhas, PR, que abrangeu 90 ha, com cerca de 200.000 arvores, e faz-se referencias a sua biologia e comportamento na natureza. |
Palavras-Chave: |
Brazilian pine; Ciclo evolutivo; Entomologia florestal; Evolutive cycle; Forestry entomology; Pinheiro brasileiro. |
Thesaurus Nal: |
Lepidoptera. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01092naa a2200217 a 4500 001 1104300 005 1997-08-24 008 1986 bl uuuu u00u1 u #d 100 1 $aBORGES, J. D. 245 $aOcorrencia de Dirphia araucariae em Araucaria angustifolia no municipio de Congonhinhas, PR. 260 $c1986 520 $aNeste trabalho sao apresentadas informacoes sobre importante praga da essencia florestal Araucaria angustifolia (Bertoloni) O. Kuntze; registra-se um intenso ataque de Dirphia araucariae Jones, 1908 (Lepidoptera, Attacidade) em talhoes do pinheiro brasileiro, ocorrido no ano de 1979, no municipio de Congonhinhas, PR, que abrangeu 90 ha, com cerca de 200.000 arvores, e faz-se referencias a sua biologia e comportamento na natureza. 650 $aLepidoptera 653 $aBrazilian pine 653 $aCiclo evolutivo 653 $aEntomologia florestal 653 $aEvolutive cycle 653 $aForestry entomology 653 $aPinheiro brasileiro 700 1 $aMACEDO, J. H. P. 773 $tPesquisa Agropecuaria Brasileira, Brasilia$gv.21, n.2, p.101-104, fev. 1986.
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Embrapa Unidades Centrais (AI-SEDE) |
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Registro Completo
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
17/12/2019 |
Data da última atualização: |
17/12/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
NEIVA, A. M.; SPERANÇA, M. A.; COSTA, V. C.; JACINTO, M. A. C.; PEREIRA-FILHO, E. R. |
Afiliação: |
Ariane Maciel Neiva, UFSCar; Marco Aurélio Sperança, UFSCar; Vinicius Câmara Costa, UFSCar; MANUEL ANTONIO CHAGAS JACINTO, CPPSE; Edenir Rodrigues Pereira-Filho, UFSCar. |
Título: |
Determination of toxic metals in leather by wavelength dispersive X-ray fluorescence (WDXRF) and inductively coupled plasma optical emission spectrometry (ICP OES) with emphasis on chromium. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Environmental Monitoring and Assessment, v.190, n.168, p.1-15, 2018. |
DOI: |
https://doi.org/10.1007/s10661-018-6990-y |
Idioma: |
Inglês |
Conteúdo: |
The tanning industry is one of the largest environmental polluters due to high generation waste in all production processes, but the tanning is particularly worrisome due to the use of significant amounts of chromium. Cr is an element potentially toxic to both health and the environment, depending on the concentration and the oxidation state. Cr(VI) can come in contact with human skin when using leather goods, which can cause allergies and dermatitis, besides being carcinogenic. Considering that approximately 90% of the world production of leather is performed with Cr salts, the determination of this element in leather is necessary to avoid exposure to the risks that the element can provide. The main goal of this study was the development of an alternative analytical method for the determination of Cr in leathers (ovine and bovine leather tanned with Cr and vegetable tannin) using wavelength dispersive X-ray fluorescence (WDXRF) for direct solid analysis. Besides performing analysis of the chemical composition and determination of Al, As, Ba, Ca, Cd, Cr, Cu, Fe, Mg, Ni, Pb, Sb, Sr, Ti, and Zn in leather by inductively coupled plasma optical emission spectrometry (ICP OES). Principal component analysis (PCA) was also used in the evaluation of the WDXRF and ICP OES data sets. WDXRF calibration models for Cr presented satisfactory figures of merit and the analysis of the leathers revealed an alarming concentration of total Cr in the samples reaching 21,353 mg kg?1. |
Palavras-Chave: |
Cr; Direct solid analysis; Inductively coupled plasma atomic emission spectrometry (ICP OES); Laser-induced breakdown spectroscopy (LIBS); Wavelength dispersive X-ray fluorescence (WDXRF). |
Thesaurus NAL: |
Leather. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
Marc: |
LEADER 02474naa a2200253 a 4500 001 2117090 005 2019-12-17 008 2018 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1007/s10661-018-6990-y$2DOI 100 1 $aNEIVA, A. M. 245 $aDetermination of toxic metals in leather by wavelength dispersive X-ray fluorescence (WDXRF) and inductively coupled plasma optical emission spectrometry (ICP OES) with emphasis on chromium.$h[electronic resource] 260 $c2018 520 $aThe tanning industry is one of the largest environmental polluters due to high generation waste in all production processes, but the tanning is particularly worrisome due to the use of significant amounts of chromium. Cr is an element potentially toxic to both health and the environment, depending on the concentration and the oxidation state. Cr(VI) can come in contact with human skin when using leather goods, which can cause allergies and dermatitis, besides being carcinogenic. Considering that approximately 90% of the world production of leather is performed with Cr salts, the determination of this element in leather is necessary to avoid exposure to the risks that the element can provide. The main goal of this study was the development of an alternative analytical method for the determination of Cr in leathers (ovine and bovine leather tanned with Cr and vegetable tannin) using wavelength dispersive X-ray fluorescence (WDXRF) for direct solid analysis. Besides performing analysis of the chemical composition and determination of Al, As, Ba, Ca, Cd, Cr, Cu, Fe, Mg, Ni, Pb, Sb, Sr, Ti, and Zn in leather by inductively coupled plasma optical emission spectrometry (ICP OES). Principal component analysis (PCA) was also used in the evaluation of the WDXRF and ICP OES data sets. WDXRF calibration models for Cr presented satisfactory figures of merit and the analysis of the leathers revealed an alarming concentration of total Cr in the samples reaching 21,353 mg kg?1. 650 $aLeather 653 $aCr 653 $aDirect solid analysis 653 $aInductively coupled plasma atomic emission spectrometry (ICP OES) 653 $aLaser-induced breakdown spectroscopy (LIBS) 653 $aWavelength dispersive X-ray fluorescence (WDXRF) 700 1 $aSPERANÇA, M. A. 700 1 $aCOSTA, V. C. 700 1 $aJACINTO, M. A. C. 700 1 $aPEREIRA-FILHO, E. R. 773 $tEnvironmental Monitoring and Assessment$gv.190, n.168, p.1-15, 2018.
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