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Chemical speciation of hexavalent chromium in organic fertilizer by LC-ICP-MS and spectrophotometry. Author(s): SÁ, I. P.; BANHOS, S.; ANDRADE, M. S.; NHAMUE, P. F.; NOGUEIRA, A. R. de A. Normative Instruction n. 7 of 04/12/2016 of the Ministry of Agriculture, Livestock and Food Supply (MAPA) defines the maximum values of contaminants allowed in organic fertilizers and soil conditioner... ... Repository: BDPA Publication year: 2023
Acute Toxicity by Water Containing Hexavalent or Trivalent Chromium in Native Brazilian Fish, Piaractus mesopotamicus: Anatomopathological Alterations and Mortality. Author(s): CASTRO, M. P.; MORAES, F. R. de; FUJIMOTO, R. Y.; CRUZ, C. da; BELO, M. A. de A.; MORAES, J. R. E. de This study evaluated the toxicity of hexavalent and trivalent compounds of chromium to the pacu, Piaractus mesopotamicus, in acute exposures of 96 h through mortality and histopathological responses.... ... Repository: BDPA Publication year: 2014
Especiação redox de cromo em solo acidentalmente contaminado com solução sulfocrômica. Author(s): MATOS, W. O.; NÓBREGA, J. de A.; SOUZA, G. B. de; NOGUEIRA, A. R. de A. Determination of Cr(VI) and Cr(III) was studied in soil samples accidentally contaminated with sulphochromic solution. Molecular absorption spectrophotometry based on the diphenylcarbazide method was... ... Repository: BDPA Publication year: 2008
Chromium carbochelate dietary supplementation favored the glucocorticoid response during acute inflammation of Piaractus mesopotamicus. Author(s): CASTRO, M. P. de; CLAUDIANO, G. S.; BORTOLUZZI, N. L.; GARRIDO, E.; FUJIMOTO, R. Y.; BELO, M. A. A.; SHIMADA, M. T.; MORAES, J. R. E.; MORAES, F. R. Repository: BDPA Publication year: 2014
A factorial design applied to the study of chromium toxicity on the glutathione levels of Brachiaria brizantha and Brachiaria ruziziensis seedlings. Author(s): MARQUES, R.; OLIVEIRA, M. A. de L.; REIS, C. R. G. dos; KOPP, M. M.; PASSOS, L. P. Chromium toxicity in plants is observed at multiple levels, from reduced yield, through effects on leaf and root growth, to inhibition on enzymatic activities and mutagenesis. Repository: BDPA Publication year: 2015
Sulfate and chromate increased each other's uptake and translocation in As-hyperaccumulator Pteris vittata. Author(s): OLIVEIRA, L. M. de; GRESS, J.; DE, J.; RATHINASABAPATHI, B.; MARCHI, G.; CHEN, Y.; MA, L. Q. Abstract: We investigated the effects of chromate (CrVI) and sulfate on their uptake and translocation in Ashyperaccumulator Pteris vittata. Plants were exposed to 1) 0.1 mM CrVI and 0, 0.25, 1.25 or... ... Repository: BDPA Publication year: 2016
Leather-based fertilizers from Personal Protective Equipment (PPE) reverse logistics: Technical efficiency and environmental safety. Author(s): MARTINAZZO, R.; MULLER, C. A.; TEIXEIRA, L. C.; STUMPF, L.; ANTUNES, w. r.; METZ, L. E. G.; VALGAS, R. A.; BAMBERG, A. L.; SILVEIRA, C. A. P. Agriculture and industry are seeking healthy food and enough goods to meet the global demand without causing environmental impacts, which motivates the search for sustainable and eco-efficient technol... ... Repository: BDPA Publication year: 2023
Avaliação da presença de metais pesados em nove méis produzidos e comercializados no Distrito Federal. Author(s): ROSA-CAMPOS, A. A.; ROCHA, J. E. da S.; BORGO, L. A.; SILVA, M. S. da Resumo: O mel brasileiro é produzido principalmente por abelhas africanizadas a partir do néctar ou da secreção das plantas e, devido às suas características genéticas dessas espécies de abelhas, disp... ... Repository: BDPA Publication year: 2013
Chromium speciation in organic fertilizer by cloud point extraction and optimization through experimental Doehlert design as support for legislative aspects. Author(s): SÁ, I. P. de; SOUZA, G. B. de; NOGUEIRA, A. R. de A. Brazilian and EU legislation establishes 2 mg kg?1 as the maximum limit of Cr(VI) in organic fertilizers. A procedure involving chromium speciation was developed. With this approach, the interference... ... Repository: BDPA Publication year: 2021
Avaliação de alternativas para o tratamento de resíduos contendo cromo Hexavalente. Author(s): GROMBONI, C. F.; MATOS, W. O.; DONATI, G. L.; NEVES, E. A.; NOGUEIRA, A. R. de A.; NÓBREGA, J. A. Repository: BDPA Publication year: 2006

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